v3.25.4
Expense Example
Mar. 01, 2026
USD ($)
California Municipal Fund | California Municipal Fund, Class A  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year $ 459
Expense Example, with Redemption, 3 Years 636
Expense Example, with Redemption, 5 Years 829
Expense Example, with Redemption, 10 Years 1,385
California Municipal Fund | California Municipal Fund, Class C  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 270
Expense Example, with Redemption, 3 Years 526
Expense Example, with Redemption, 5 Years 907
Expense Example, with Redemption, 10 Years 1,758
California Municipal Fund | California Municipal Fund, Institutional Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 61
Expense Example, with Redemption, 3 Years 201
Expense Example, with Redemption, 5 Years 353
Expense Example, with Redemption, 10 Years 795
Core Fixed Income Fund | Core Fixed Income Fund, Class A  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 296
Expense Example, with Redemption, 3 Years 447
Expense Example, with Redemption, 5 Years 611
Expense Example, with Redemption, 10 Years 1,088
Core Fixed Income Fund | Core Fixed Income Fund, Class J  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 158
Expense Example, with Redemption, 3 Years 183
Expense Example, with Redemption, 5 Years 318
Expense Example, with Redemption, 10 Years 714
Core Fixed Income Fund | Core Fixed Income Fund, Institutional Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 44
Expense Example, with Redemption, 3 Years 140
Expense Example, with Redemption, 5 Years 245
Expense Example, with Redemption, 10 Years 554
Core Fixed Income Fund | Core Fixed Income Fund, Class R-3  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 92
Expense Example, with Redemption, 3 Years 287
Expense Example, with Redemption, 5 Years 498
Expense Example, with Redemption, 10 Years 1,108
Core Fixed Income Fund | Core Fixed Income Fund, Class R-5  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 60
Expense Example, with Redemption, 3 Years 189
Expense Example, with Redemption, 5 Years 329
Expense Example, with Redemption, 10 Years 738
Core Fixed Income Fund | Core Fixed Income Fund, Class R-6  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 35
Expense Example, with Redemption, 3 Years 109
Expense Example, with Redemption, 5 Years 191
Expense Example, with Redemption, 10 Years 431
Core Plus Bond Fund | Core Plus Bond Fund, Class A  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 455
Expense Example, with Redemption, 3 Years 643
Expense Example, with Redemption, 5 Years 846
Expense Example, with Redemption, 10 Years 1,433
Core Plus Bond Fund | Core Plus Bond Fund, Class J  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 184
Expense Example, with Redemption, 3 Years 262
Expense Example, with Redemption, 5 Years 455
Expense Example, with Redemption, 10 Years 1,014
Core Plus Bond Fund | Core Plus Bond Fund, Institutional Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 50
Expense Example, with Redemption, 3 Years 177
Expense Example, with Redemption, 5 Years 315
Expense Example, with Redemption, 10 Years 717
Core Plus Bond Fund | Core Plus Bond Fund, Class R-3  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 104
Expense Example, with Redemption, 3 Years 325
Expense Example, with Redemption, 5 Years 563
Expense Example, with Redemption, 10 Years 1,248
Core Plus Bond Fund | Core Plus Bond Fund, Class R-5  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 73
Expense Example, with Redemption, 3 Years 227
Expense Example, with Redemption, 5 Years 395
Expense Example, with Redemption, 10 Years 883
Diversified Income Fund | Diversified Income Fund, Class A  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 480
Expense Example, with Redemption, 3 Years 703
Expense Example, with Redemption, 5 Years 943
Expense Example, with Redemption, 10 Years 1,632
Diversified Income Fund | Diversified Income Fund, Class C  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 287
Expense Example, with Redemption, 3 Years 579
Expense Example, with Redemption, 5 Years 995
Expense Example, with Redemption, 10 Years 1,957
Diversified Income Fund | Diversified Income Fund, Institutional Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 75
Expense Example, with Redemption, 3 Years 253
Expense Example, with Redemption, 5 Years 446
Expense Example, with Redemption, 10 Years 1,005
Diversified Income Fund | Diversified Income Fund, Class R-6  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 75
Expense Example, with Redemption, 3 Years 240
Expense Example, with Redemption, 5 Years 419
Expense Example, with Redemption, 10 Years 939
Diversified International Fund | Diversified International Fund, Class A  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 667
Expense Example, with Redemption, 3 Years 916
Expense Example, with Redemption, 5 Years 1,183
Expense Example, with Redemption, 10 Years 1,946
Diversified International Fund | Diversified International Fund, Class J  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 213
Expense Example, with Redemption, 3 Years 353
Expense Example, with Redemption, 5 Years 612
Expense Example, with Redemption, 10 Years 1,352
Diversified International Fund | Diversified International Fund, Institutional Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 88
Expense Example, with Redemption, 3 Years 285
Expense Example, with Redemption, 5 Years 499
Expense Example, with Redemption, 10 Years 1,115
Diversified International Fund | Diversified International Fund, Class R-3  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 142
Expense Example, with Redemption, 3 Years 440
Expense Example, with Redemption, 5 Years 761
Expense Example, with Redemption, 10 Years 1,669
Diversified International Fund | Diversified International Fund, Class R-5  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 110
Expense Example, with Redemption, 3 Years 343
Expense Example, with Redemption, 5 Years 595
Expense Example, with Redemption, 10 Years 1,317
Diversified International Fund | Diversified International Fund, Class R-6  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 78
Expense Example, with Redemption, 3 Years 243
Expense Example, with Redemption, 5 Years 422
Expense Example, with Redemption, 10 Years 942
Equity Income Fund | Equity Income Fund, Class A  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 632
Expense Example, with Redemption, 3 Years 806
Expense Example, with Redemption, 5 Years 995
Expense Example, with Redemption, 10 Years 1,541
Equity Income Fund | Equity Income Fund, Class C  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 266
Expense Example, with Redemption, 3 Years 514
Expense Example, with Redemption, 5 Years 887
Expense Example, with Redemption, 10 Years 1,724
Equity Income Fund | Equity Income Fund, Class J  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 176
Expense Example, with Redemption, 3 Years 237
Expense Example, with Redemption, 5 Years 411
Expense Example, with Redemption, 10 Years 918
Equity Income Fund | Equity Income Fund, Institutional Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 53
Expense Example, with Redemption, 3 Years 171
Expense Example, with Redemption, 5 Years 300
Expense Example, with Redemption, 10 Years 675
Equity Income Fund | Equity Income Fund, Class R-3  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 110
Expense Example, with Redemption, 3 Years 343
Expense Example, with Redemption, 5 Years 595
Expense Example, with Redemption, 10 Years 1,317
Equity Income Fund | Equity Income Fund, Class R-5  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 79
Expense Example, with Redemption, 3 Years 246
Expense Example, with Redemption, 5 Years 428
Expense Example, with Redemption, 10 Years 954
Finisterre Emerging Markets Total Return Bond Fund | Finisterre Emerging Markets Total Return Bond Fund, Institutional Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 87
Expense Example, with Redemption, 3 Years 271
Expense Example, with Redemption, 5 Years 471
Expense Example, with Redemption, 10 Years 1,049
Global Emerging Markets Fund | Global Emerging Markets Fund, Class A  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 689
Expense Example, with Redemption, 3 Years 983
Expense Example, with Redemption, 5 Years 1,299
Expense Example, with Redemption, 10 Years 2,190
Global Emerging Markets Fund | Global Emerging Markets Fund, Class J  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 233
Expense Example, with Redemption, 3 Years 424
Expense Example, with Redemption, 5 Years 736
Expense Example, with Redemption, 10 Years 1,620
Global Emerging Markets Fund | Global Emerging Markets Fund, Institutional Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 113
Expense Example, with Redemption, 3 Years 366
Expense Example, with Redemption, 5 Years 638
Expense Example, with Redemption, 10 Years 1,415
Global Emerging Markets Fund | Global Emerging Markets Fund, Class R-3  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 159
Expense Example, with Redemption, 3 Years 493
Expense Example, with Redemption, 5 Years 850
Expense Example, with Redemption, 10 Years 1,856
Global Emerging Markets Fund | Global Emerging Markets Fund, Class R-5  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 127
Expense Example, with Redemption, 3 Years 397
Expense Example, with Redemption, 5 Years 686
Expense Example, with Redemption, 10 Years 1,511
Global Emerging Markets Fund | Global Emerging Markets Fund, Class R-6  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 102
Expense Example, with Redemption, 3 Years 318
Expense Example, with Redemption, 5 Years 552
Expense Example, with Redemption, 10 Years 1,225
Global Real Estate Securities Fund | Global Real Estate Securities Fund, Class A  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 681
Expense Example, with Redemption, 3 Years 957
Expense Example, with Redemption, 5 Years 1,254
Expense Example, with Redemption, 10 Years 2,095
Global Real Estate Securities Fund | Global Real Estate Securities Fund, Institutional Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 96
Expense Example, with Redemption, 3 Years 315
Expense Example, with Redemption, 5 Years 551
Expense Example, with Redemption, 10 Years 1,230
Global Real Estate Securities Fund | Global Real Estate Securities Fund, Class R-3  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 149
Expense Example, with Redemption, 3 Years 462
Expense Example, with Redemption, 5 Years 797
Expense Example, with Redemption, 10 Years 1,746
Global Real Estate Securities Fund | Global Real Estate Securities Fund, Class R-5  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 117
Expense Example, with Redemption, 3 Years 365
Expense Example, with Redemption, 5 Years 633
Expense Example, with Redemption, 10 Years 1,398
Global Real Estate Securities Fund | Global Real Estate Securities Fund, Class R-6  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 92
Expense Example, with Redemption, 3 Years 287
Expense Example, with Redemption, 5 Years 498
Expense Example, with Redemption, 10 Years 1,108
Government & High Quality Bond Fund | Government & High Quality Bond Fund, Class A  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 305
Expense Example, with Redemption, 3 Years 475
Expense Example, with Redemption, 5 Years 659
Expense Example, with Redemption, 10 Years 1,193
Government & High Quality Bond Fund | Government & High Quality Bond Fund, Class J  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 189
Expense Example, with Redemption, 3 Years 278
Expense Example, with Redemption, 5 Years 482
Expense Example, with Redemption, 10 Years 1,073
Government & High Quality Bond Fund | Government & High Quality Bond Fund, Institutional Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 54
Expense Example, with Redemption, 3 Years 181
Expense Example, with Redemption, 5 Years 319
Expense Example, with Redemption, 10 Years 721
Government & High Quality Bond Fund | Government & High Quality Bond Fund, Class R-3  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 100
Expense Example, with Redemption, 3 Years 331
Expense Example, with Redemption, 5 Years 581
Expense Example, with Redemption, 10 Years 1,298
Government & High Quality Bond Fund | Government & High Quality Bond Fund, Class R-5  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 68
Expense Example, with Redemption, 3 Years 234
Expense Example, with Redemption, 5 Years 414
Expense Example, with Redemption, 10 Years 934
Government Money Market Fund | Government Money Market Fund, Institutional Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 20
Expense Example, with Redemption, 3 Years 69
Expense Example, with Redemption, 5 Years 122
Expense Example, with Redemption, 10 Years 278
Government Money Market Fund | Government Money Market Fund Class R-6  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 15
Expense Example, with Redemption, 3 Years 53
Expense Example, with Redemption, 5 Years 94
Expense Example, with Redemption, 10 Years 215
High Yield Fund | High Yield Fund, Class A  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 463
Expense Example, with Redemption, 3 Years 651
Expense Example, with Redemption, 5 Years 855
Expense Example, with Redemption, 10 Years 1,441
High Yield Fund | High Yield Fund, Class C  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 272
Expense Example, with Redemption, 3 Years 533
Expense Example, with Redemption, 5 Years 918
Expense Example, with Redemption, 10 Years 1,788
High Yield Fund | High Yield Fund, Institutional Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 62
Expense Example, with Redemption, 3 Years 198
Expense Example, with Redemption, 5 Years 345
Expense Example, with Redemption, 10 Years 773
High Yield Fund | High Yield Fund, Class R-6  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 53
Expense Example, with Redemption, 3 Years 167
Expense Example, with Redemption, 5 Years 291
Expense Example, with Redemption, 10 Years 653
Inflation Protection Fund | Inflation Protection Fund, Class J  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 153
Expense Example, with Redemption, 3 Years 167
Expense Example, with Redemption, 5 Years 291
Expense Example, with Redemption, 10 Years 653
Inflation Protection Fund | Inflation Protection Fund, Institutional Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 11
Expense Example, with Redemption, 3 Years 35
Expense Example, with Redemption, 5 Years 62
Expense Example, with Redemption, 10 Years 141
Inflation Protection Fund | Inflation Protection Fund, Class R-3  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 69
Expense Example, with Redemption, 3 Years 218
Expense Example, with Redemption, 5 Years 379
Expense Example, with Redemption, 10 Years 847
Inflation Protection Fund | Inflation Protection Fund, Class R-5  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 38
Expense Example, with Redemption, 3 Years 119
Expense Example, with Redemption, 5 Years 208
Expense Example, with Redemption, 10 Years 468
International Equity Fund | International Equity Fund, Institutional Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 79
Expense Example, with Redemption, 3 Years 246
Expense Example, with Redemption, 5 Years 428
Expense Example, with Redemption, 10 Years 954
International Equity Fund | International Equity Fund, Class R-3  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 122
Expense Example, with Redemption, 3 Years 381
Expense Example, with Redemption, 5 Years 660
Expense Example, with Redemption, 10 Years 1,455
International Equity Fund | International Equity Fund, Class R-5  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 91
Expense Example, with Redemption, 3 Years 284
Expense Example, with Redemption, 5 Years 493
Expense Example, with Redemption, 10 Years 1,096
International Equity Fund | International Equity Fund, Class R-6  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 63
Expense Example, with Redemption, 3 Years 199
Expense Example, with Redemption, 5 Years 346
Expense Example, with Redemption, 10 Years 774
LargeCap Growth Fund I | LargeCap Growth Fund I, Class A  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 640
Expense Example, with Redemption, 3 Years 834
Expense Example, with Redemption, 5 Years 1,045
Expense Example, with Redemption, 10 Years 1,651
LargeCap Growth Fund I | LargeCap Growth Fund I, Class J  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 180
Expense Example, with Redemption, 3 Years 253
Expense Example, with Redemption, 5 Years 442
Expense Example, with Redemption, 10 Years 988
LargeCap Growth Fund I | LargeCap Growth Fund I, Institutional Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 68
Expense Example, with Redemption, 3 Years 219
Expense Example, with Redemption, 5 Years 382
Expense Example, with Redemption, 10 Years 857
LargeCap Growth Fund I | LargeCap Growth Fund I, Class R-3  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 118
Expense Example, with Redemption, 3 Years 373
Expense Example, with Redemption, 5 Years 647
Expense Example, with Redemption, 10 Years 1,430
LargeCap Growth Fund I | LargeCap Growth Fund I, Class R-5  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 87
Expense Example, with Redemption, 3 Years 276
Expense Example, with Redemption, 5 Years 480
Expense Example, with Redemption, 10 Years 1,071
LargeCap Growth Fund I | LargeCap Growth Fund I, Class R-6  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 60
Expense Example, with Redemption, 3 Years 193
Expense Example, with Redemption, 5 Years 338
Expense Example, with Redemption, 10 Years 760
LargeCap S&P 500 Index Fund | LargeCap S&P 500 Index Fund, Class A  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 181
Expense Example, with Redemption, 3 Years 248
Expense Example, with Redemption, 5 Years 322
Expense Example, with Redemption, 10 Years 537
LargeCap S&P 500 Index Fund | LargeCap S&P 500 Index Fund, Class J  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 128
Expense Example, with Redemption, 3 Years 87
Expense Example, with Redemption, 5 Years 152
Expense Example, with Redemption, 10 Years 343
LargeCap S&P 500 Index Fund | LargeCap S&P 500 Index Fund, Institutional Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 10
Expense Example, with Redemption, 3 Years 32
Expense Example, with Redemption, 5 Years 56
Expense Example, with Redemption, 10 Years 128
LargeCap S&P 500 Index Fund | LargeCap S&P 500 Index Fund, Class R-3  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 67
Expense Example, with Redemption, 3 Years 211
Expense Example, with Redemption, 5 Years 368
Expense Example, with Redemption, 10 Years 822
LargeCap S&P 500 Index Fund | LargeCap S&P 500 Index Fund, Class R-5  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 36
Expense Example, with Redemption, 3 Years 113
Expense Example, with Redemption, 5 Years 197
Expense Example, with Redemption, 10 Years 443
LargeCap Value Fund III | LargeCap Value Fund III, Class J  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 194
Expense Example, with Redemption, 3 Years 300
Expense Example, with Redemption, 5 Years 523
Expense Example, with Redemption, 10 Years 1,164
LargeCap Value Fund III | LargeCap Value Fund III, Institutional Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 69
Expense Example, with Redemption, 3 Years 224
Expense Example, with Redemption, 5 Years 392
Expense Example, with Redemption, 10 Years 880
LargeCap Value Fund III | LargeCap Value Fund III, Class R-3  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 126
Expense Example, with Redemption, 3 Years 400
Expense Example, with Redemption, 5 Years 694
Expense Example, with Redemption, 10 Years 1,531
LargeCap Value Fund III | LargeCap Value Fund III, Class R-5  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 95
Expense Example, with Redemption, 3 Years 303
Expense Example, with Redemption, 5 Years 528
Expense Example, with Redemption, 10 Years 1,175
MidCap Fund | MidCap Fund, Class A  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 637
Expense Example, with Redemption, 3 Years 821
Expense Example, with Redemption, 5 Years 1,021
Expense Example, with Redemption, 10 Years 1,597
MidCap Fund | MidCap Fund, Class C  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 274
Expense Example, with Redemption, 3 Years 539
Expense Example, with Redemption, 5 Years 928
Expense Example, with Redemption, 10 Years 1,804
MidCap Fund | MidCap Fund, Class J  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 178
Expense Example, with Redemption, 3 Years 243
Expense Example, with Redemption, 5 Years 422
Expense Example, with Redemption, 10 Years 942
MidCap Fund | MidCap Fund, Institutional Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 68
Expense Example, with Redemption, 3 Years 214
Expense Example, with Redemption, 5 Years 373
Expense Example, with Redemption, 10 Years 835
MidCap Fund | MidCap Fund, Class R-3  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 115
Expense Example, with Redemption, 3 Years 359
Expense Example, with Redemption, 5 Years 622
Expense Example, with Redemption, 10 Years 1,375
MidCap Fund | MidCap Fund, Class R-5  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 84
Expense Example, with Redemption, 3 Years 262
Expense Example, with Redemption, 5 Years 455
Expense Example, with Redemption, 10 Years 1,014
MidCap Fund | MidCap Fund, Class R-6  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 58
Expense Example, with Redemption, 3 Years 183
Expense Example, with Redemption, 5 Years 318
Expense Example, with Redemption, 10 Years 714
MidCap S&P 400 Index Fund | MidCap S&P 400 Index Fund, Class J  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 139
Expense Example, with Redemption, 3 Years 122
Expense Example, with Redemption, 5 Years 213
Expense Example, with Redemption, 10 Years 480
MidCap S&P 400 Index Fund | MidCap S&P 400 Index Fund, Institutional Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 26
Expense Example, with Redemption, 3 Years 80
Expense Example, with Redemption, 5 Years 141
Expense Example, with Redemption, 10 Years 318
MidCap S&P 400 Index Fund | MidCap S&P 400 Index Fund, Class R-3  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 75
Expense Example, with Redemption, 3 Years 233
Expense Example, with Redemption, 5 Years 406
Expense Example, with Redemption, 10 Years 906
MidCap S&P 400 Index Fund | MidCap S&P 400 Index Fund, Class R-5  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 43
Expense Example, with Redemption, 3 Years 135
Expense Example, with Redemption, 5 Years 235
Expense Example, with Redemption, 10 Years 530
MidCap S&P 400 Index Fund | MidCap S&P 400 Index Fund, Class R-6  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 16
Expense Example, with Redemption, 3 Years 52
Expense Example, with Redemption, 5 Years 90
Expense Example, with Redemption, 10 Years 205
MidCap Value Fund I | MidCap Value Fund I, Class A  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 652
Expense Example, with Redemption, 3 Years 873
Expense Example, with Redemption, 5 Years 1,111
Expense Example, with Redemption, 10 Years 1,793
MidCap Value Fund I | MidCap Value I Fund, Class J  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 189
Expense Example, with Redemption, 3 Years 282
Expense Example, with Redemption, 5 Years 491
Expense Example, with Redemption, 10 Years 1,094
MidCap Value Fund I | MidCap Value I Fund, Institutional Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 70
Expense Example, with Redemption, 3 Years 236
Expense Example, with Redemption, 5 Years 415
Expense Example, with Redemption, 10 Years 936
MidCap Value Fund I | MidCap Value I Fund, Class R-3  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 122
Expense Example, with Redemption, 3 Years 385
Expense Example, with Redemption, 5 Years 668
Expense Example, with Redemption, 10 Years 1,476
MidCap Value Fund I | MidCap Value I Fund, Class R-5  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 91
Expense Example, with Redemption, 3 Years 288
Expense Example, with Redemption, 5 Years 502
Expense Example, with Redemption, 10 Years 1,118
MidCap Value Fund I | MidCap Value Fund I , Class R-6  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 65
Expense Example, with Redemption, 3 Years 209
Expense Example, with Redemption, 5 Years 366
Expense Example, with Redemption, 10 Years 821
Money Market Fund | Money Market Fund, Class A  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 148
Expense Example, with Redemption, 3 Years 151
Expense Example, with Redemption, 5 Years 263
Expense Example, with Redemption, 10 Years 591
Money Market Fund | Money Market Fund, Class J  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 145
Expense Example, with Redemption, 3 Years 174
Expense Example, with Redemption, 5 Years 314
Expense Example, with Redemption, 10 Years 724
Overseas Fund | Overseas Fund, Institutional Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 93
Expense Example, with Redemption, 3 Years 297
Expense Example, with Redemption, 5 Years 517
Expense Example, with Redemption, 10 Years 1,152
Overseas Fund | Overseas Fund, Class R-3  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 149
Expense Example, with Redemption, 3 Years 466
Expense Example, with Redemption, 5 Years 806
Expense Example, with Redemption, 10 Years 1,767
Principal Capital Appreciation Fund | Principal Capital Appreciation Fund, Class A  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 620
Expense Example, with Redemption, 3 Years 771
Expense Example, with Redemption, 5 Years 934
Expense Example, with Redemption, 10 Years 1,407
Principal Capital Appreciation Fund | Principal Capital Appreciation Fund, Institutional Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 46
Expense Example, with Redemption, 3 Years 144
Expense Example, with Redemption, 5 Years 252
Expense Example, with Redemption, 10 Years 567
Principal Capital Appreciation Fund | Principal Capital Appreciation Fund, Class R-3  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 101
Expense Example, with Redemption, 3 Years 315
Expense Example, with Redemption, 5 Years 547
Expense Example, with Redemption, 10 Years 1,213
Principal Capital Appreciation Fund | Principal Capital Appreciation Fund, Class R-5  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 69
Expense Example, with Redemption, 3 Years 218
Expense Example, with Redemption, 5 Years 379
Expense Example, with Redemption, 10 Years 847
Principal LifeTime Strategic Income Fund | Principal LifeTime Strategic Income Fund, Class A  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 458
Expense Example, with Redemption, 3 Years 633
Expense Example, with Redemption, 5 Years 823
Expense Example, with Redemption, 10 Years 1,373
Principal LifeTime Strategic Income Fund | Principal LifeTime Strategic Income Fund, Class J  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 165
Expense Example, with Redemption, 3 Years 205
Expense Example, with Redemption, 5 Years 357
Expense Example, with Redemption, 10 Years 798
Principal LifeTime Strategic Income Fund | Principal LifeTime Strategic Income Fund, Institutional Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 47
Expense Example, with Redemption, 3 Years 152
Expense Example, with Redemption, 5 Years 267
Expense Example, with Redemption, 10 Years 602
Principal LifeTime Strategic Income Fund | Principal LifeTime Strategic Income Fund, Class R-3  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 106
Expense Example, with Redemption, 3 Years 331
Expense Example, with Redemption, 5 Years 574
Expense Example, with Redemption, 10 Years 1,271
Principal LifeTime Strategic Income Fund | Principal LifeTime Strategic Income Fund, Class R-5  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 75
Expense Example, with Redemption, 3 Years 233
Expense Example, with Redemption, 5 Years 406
Expense Example, with Redemption, 10 Years 906
Principal LifeTime 2015 Fund | Principal LifeTime 2015 Fund, Institutional Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 50
Expense Example, with Redemption, 3 Years 157
Expense Example, with Redemption, 5 Years 274
Expense Example, with Redemption, 10 Years 616
Principal LifeTime 2015 Fund | Principal LifeTime 2015 Fund, Class R-3  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 106
Expense Example, with Redemption, 3 Years 331
Expense Example, with Redemption, 5 Years 574
Expense Example, with Redemption, 10 Years 1,271
Principal LifeTime 2015 Fund | Principal LifeTime 2015 Fund, Class R-5  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 75
Expense Example, with Redemption, 3 Years 233
Expense Example, with Redemption, 5 Years 406
Expense Example, with Redemption, 10 Years 906
Principal LifeTime 2020 Fund | Principal LifeTime 2020 Fund, Class A  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 454
Expense Example, with Redemption, 3 Years 621
Expense Example, with Redemption, 5 Years 803
Expense Example, with Redemption, 10 Years 1,328
Principal LifeTime 2020 Fund | Principal LifeTime 2020 Fund, Class J  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 165
Expense Example, with Redemption, 3 Years 205
Expense Example, with Redemption, 5 Years 357
Expense Example, with Redemption, 10 Years 798
Principal LifeTime 2020 Fund | Principal LifeTime 2020 Fund, Institutional Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 49
Expense Example, with Redemption, 3 Years 154
Expense Example, with Redemption, 5 Years 269
Expense Example, with Redemption, 10 Years 604
Principal LifeTime 2020 Fund | Principal LifeTime 2020 Fund, Class R-3  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 106
Expense Example, with Redemption, 3 Years 331
Expense Example, with Redemption, 5 Years 574
Expense Example, with Redemption, 10 Years 1,271
Principal LifeTime 2020 Fund | Principal LifeTime 2020 Fund, Class R-5  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 75
Expense Example, with Redemption, 3 Years 233
Expense Example, with Redemption, 5 Years 406
Expense Example, with Redemption, 10 Years 906
Principal LifeTime 2025 Fund | Principal LifeTime 2025 Fund, Institutional Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 50
Expense Example, with Redemption, 3 Years 157
Expense Example, with Redemption, 5 Years 274
Expense Example, with Redemption, 10 Years 616
Principal LifeTime 2025 Fund | Principal LifeTime 2025 Fund, Class R-3  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 107
Expense Example, with Redemption, 3 Years 334
Expense Example, with Redemption, 5 Years 579
Expense Example, with Redemption, 10 Years 1,283
Principal LifeTime 2025 Fund | Principal LifeTime 2025 Fund, Class R-5  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 76
Expense Example, with Redemption, 3 Years 237
Expense Example, with Redemption, 5 Years 411
Expense Example, with Redemption, 10 Years 918
Principal LifeTime 2030 Fund | Principal LifeTime 2030 Fund, Class A  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 456
Expense Example, with Redemption, 3 Years 627
Expense Example, with Redemption, 5 Years 813
Expense Example, with Redemption, 10 Years 1,350
Principal LifeTime 2030 Fund | Principal LifeTime 2030 Fund, Class J  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 168
Expense Example, with Redemption, 3 Years 214
Expense Example, with Redemption, 5 Years 373
Expense Example, with Redemption, 10 Years 835
Principal LifeTime 2030 Fund | Principal LifeTime 2030 Fund, Institutional Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 52
Expense Example, with Redemption, 3 Years 164
Expense Example, with Redemption, 5 Years 285
Expense Example, with Redemption, 10 Years 640
Principal LifeTime 2030 Fund | Principal LifeTime 2030 Fund, Class R-3  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 109
Expense Example, with Redemption, 3 Years 340
Expense Example, with Redemption, 5 Years 590
Expense Example, with Redemption, 10 Years 1,306
Principal LifeTime 2030 Fund | Principal LifeTime 2030 Fund, Class R-5  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 78
Expense Example, with Redemption, 3 Years 243
Expense Example, with Redemption, 5 Years 422
Expense Example, with Redemption, 10 Years 942
Principal LifeTime 2035 Fund | Principal LifeTime 2035 Fund, Institutional Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 54
Expense Example, with Redemption, 3 Years 170
Expense Example, with Redemption, 5 Years 296
Expense Example, with Redemption, 10 Years 665
Principal LifeTime 2035 Fund | Principal LifeTime 2035 Fund, Class R-3  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 111
Expense Example, with Redemption, 3 Years 347
Expense Example, with Redemption, 5 Years 601
Expense Example, with Redemption, 10 Years 1,329
Principal LifeTime 2035 Fund | Principal LifeTime 2035 Fund, Class R-5  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 80
Expense Example, with Redemption, 3 Years 249
Expense Example, with Redemption, 5 Years 433
Expense Example, with Redemption, 10 Years 966
Principal LifeTime 2040 Fund | Principal LifeTime 2040 Fund, Class A  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 635
Expense Example, with Redemption, 3 Years 815
Expense Example, with Redemption, 5 Years 1,011
Expense Example, with Redemption, 10 Years 1,575
Principal LifeTime 2040 Fund | Principal LifeTime 2040 Fund, Class J  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 174
Expense Example, with Redemption, 3 Years 230
Expense Example, with Redemption, 5 Years 401
Expense Example, with Redemption, 10 Years 894
Principal LifeTime 2040 Fund | Principal LifeTime 2040 Fund, Institutional Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 56
Expense Example, with Redemption, 3 Years 176
Expense Example, with Redemption, 5 Years 307
Expense Example, with Redemption, 10 Years 689
Principal LifeTime 2040 Fund | Principal LifeTime 2040 Fund, Class R-3  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 113
Expense Example, with Redemption, 3 Years 353
Expense Example, with Redemption, 5 Years 612
Expense Example, with Redemption, 10 Years 1,352
Principal LifeTime 2040 Fund | Principal LifeTime 2040 Fund, Class R-5  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 82
Expense Example, with Redemption, 3 Years 255
Expense Example, with Redemption, 5 Years 444
Expense Example, with Redemption, 10 Years 990
Principal LifeTime 2045 Fund | Principal LifeTime 2045 Fund, Institutional Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 58
Expense Example, with Redemption, 3 Years 183
Expense Example, with Redemption, 5 Years 318
Expense Example, with Redemption, 10 Years 714
Principal LifeTime 2045 Fund | Principal LifeTime 2045 Fund, Class R-3  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 115
Expense Example, with Redemption, 3 Years 359
Expense Example, with Redemption, 5 Years 622
Expense Example, with Redemption, 10 Years 1,375
Principal LifeTime 2045 Fund | Principal LifeTime 2045 Fund, Class R-5  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 84
Expense Example, with Redemption, 3 Years 262
Expense Example, with Redemption, 5 Years 455
Expense Example, with Redemption, 10 Years 1,014
Principal LifeTime 2050 Fund | Principal LifeTime 2050 Fund, Class A  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 643
Expense Example, with Redemption, 3 Years 839
Expense Example, with Redemption, 5 Years 1,052
Expense Example, with Redemption, 10 Years 1,663
Principal LifeTime 2050 Fund | Principal LifeTime 2050 Fund, Class J  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 181
Expense Example, with Redemption, 3 Years 252
Expense Example, with Redemption, 5 Years 439
Expense Example, with Redemption, 10 Years 978
Principal LifeTime 2050 Fund | Principal LifeTime 2050 Fund, Institutional Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 60
Expense Example, with Redemption, 3 Years 189
Expense Example, with Redemption, 5 Years 329
Expense Example, with Redemption, 10 Years 738
Principal LifeTime 2050 Fund | Principal LifeTime 2050 Fund, Class R-3  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 117
Expense Example, with Redemption, 3 Years 365
Expense Example, with Redemption, 5 Years 633
Expense Example, with Redemption, 10 Years 1,398
Principal LifeTime 2050 Fund | Principal LifeTime 2050 Fund, Class R-5  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 86
Expense Example, with Redemption, 3 Years 268
Expense Example, with Redemption, 5 Years 466
Expense Example, with Redemption, 10 Years 1,037
Principal LifeTime 2055 Fund | Principal LifeTime 2055 Fund, Institutional Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 60
Expense Example, with Redemption, 3 Years 189
Expense Example, with Redemption, 5 Years 329
Expense Example, with Redemption, 10 Years 738
Principal LifeTime 2055 Fund | Principal LifeTime 2055 Fund, Class R-3  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 118
Expense Example, with Redemption, 3 Years 368
Expense Example, with Redemption, 5 Years 638
Expense Example, with Redemption, 10 Years 1,409
Principal LifeTime 2055 Fund | Principal LifeTime 2055 Fund, Class R-5  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 87
Expense Example, with Redemption, 3 Years 271
Expense Example, with Redemption, 5 Years 471
Expense Example, with Redemption, 10 Years 1,049
Principal LifeTime 2060 Fund | Principal LifeTime 2060 Fund, Class J  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 195
Expense Example, with Redemption, 3 Years 296
Expense Example, with Redemption, 5 Years 515
Expense Example, with Redemption, 10 Years 1,143
Principal LifeTime 2060 Fund | Principal LifeTime 2060 Fund, Institutional Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 60
Expense Example, with Redemption, 3 Years 189
Expense Example, with Redemption, 5 Years 329
Expense Example, with Redemption, 10 Years 738
Principal LifeTime 2060 Fund | Principal LifeTime 2060 Fund, Class R-3  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 118
Expense Example, with Redemption, 3 Years 368
Expense Example, with Redemption, 5 Years 638
Expense Example, with Redemption, 10 Years 1,409
Principal LifeTime 2060 Fund | Principal LifeTime 2060 Fund, Class R-5  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 87
Expense Example, with Redemption, 3 Years 271
Expense Example, with Redemption, 5 Years 471
Expense Example, with Redemption, 10 Years 1,049
Principal LifeTime 2065 Fund | Principal LifeTime 2065, Institutional Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 62
Expense Example, with Redemption, 3 Years 195
Expense Example, with Redemption, 5 Years 340
Expense Example, with Redemption, 10 Years 762
Principal LifeTime 2065 Fund | Principal LifeTime 2065, Class R-3  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 118
Expense Example, with Redemption, 3 Years 368
Expense Example, with Redemption, 5 Years 638
Expense Example, with Redemption, 10 Years 1,409
Principal LifeTime 2065 Fund | Principal LifeTime 2065, Class R-5  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 87
Expense Example, with Redemption, 3 Years 271
Expense Example, with Redemption, 5 Years 471
Expense Example, with Redemption, 10 Years 1,049
Principal LifeTime 2070 Fund | Principal LifeTime 2070 Fund, Class J  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 190
Expense Example, with Redemption, 3 Years 919
Expense Example, with Redemption, 5 Years 1,766
Expense Example, with Redemption, 10 Years 3,963
Principal LifeTime 2070 Fund | Principal LifeTime 2070 Fund, Institutional Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 64
Expense Example, with Redemption, 3 Years 206
Expense Example, with Redemption, 5 Years 360
Expense Example, with Redemption, 10 Years 809
Principal LifeTime 2070 Fund | Principal LifeTime 2070 Fund, Class R-3  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 121
Expense Example, with Redemption, 3 Years 378
Expense Example, with Redemption, 5 Years 654
Expense Example, with Redemption, 10 Years 1,443
Principal LifeTime 2070 Fund | Principal LifeTime 2070 Fund, Class R-5  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 90
Expense Example, with Redemption, 3 Years 281
Expense Example, with Redemption, 5 Years 488
Expense Example, with Redemption, 10 Years 1,084
Principal LifeTime Hybrid Income Fund | Principal LifeTime Hybrid Income Fund, Class J  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 149
Expense Example, with Redemption, 3 Years 154
Expense Example, with Redemption, 5 Years 269
Expense Example, with Redemption, 10 Years 604
Principal LifeTime Hybrid Income Fund | Principal LifeTime Hybrid Income Fund, Institutional Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 35
Expense Example, with Redemption, 3 Years 172
Expense Example, with Redemption, 5 Years 322
Expense Example, with Redemption, 10 Years 759
Principal LifeTime Hybrid Income Fund | Principal LifeTime Hybrid Income Fund, R-6  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 32
Expense Example, with Redemption, 3 Years 111
Expense Example, with Redemption, 5 Years 197
Expense Example, with Redemption, 10 Years 451
Principal LifeTime Hybrid 2015 Fund | Principal LifeTime Hybrid 2015 Fund, Class J  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 148
Expense Example, with Redemption, 3 Years 151
Expense Example, with Redemption, 5 Years 263
Expense Example, with Redemption, 10 Years 591
Principal LifeTime Hybrid 2015 Fund | Principal LifeTime Hybrid 2015 Fund, Institutional Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 35
Expense Example, with Redemption, 3 Years 136
Expense Example, with Redemption, 5 Years 246
Expense Example, with Redemption, 10 Years 568
Principal LifeTime Hybrid 2015 Fund | Principal LifeTime Hybrid 2015 Fund, R-6 [Member]  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 32
Expense Example, with Redemption, 3 Years 111
Expense Example, with Redemption, 5 Years 197
Expense Example, with Redemption, 10 Years 451
Principal LifeTime Hybrid 2020 Fund | Principal LifeTime Hybrid 2020 Fund, Class J  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 147
Expense Example, with Redemption, 3 Years 148
Expense Example, with Redemption, 5 Years 258
Expense Example, with Redemption, 10 Years 579
Principal LifeTime Hybrid 2020 Fund | Principal LifeTime Hybrid 2020 Fund, Institutional Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 35
Expense Example, with Redemption, 3 Years 120
Expense Example, with Redemption, 5 Years 214
Expense Example, with Redemption, 10 Years 488
Principal LifeTime Hybrid 2020 Fund | Principal LifeTime Hybrid 2020 Fund, R-6 [Member]  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 32
Expense Example, with Redemption, 3 Years 100
Expense Example, with Redemption, 5 Years 174
Expense Example, with Redemption, 10 Years 393
Principal LifeTime Hybrid 2025 Fund | Principal LifeTime Hybrid 2025 Fund, Class J  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 145
Expense Example, with Redemption, 3 Years 141
Expense Example, with Redemption, 5 Years 246
Expense Example, with Redemption, 10 Years 555
Principal LifeTime Hybrid 2025 Fund | Principal LifeTime Hybrid 2025 Fund, Institutional Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 34
Expense Example, with Redemption, 3 Years 113
Expense Example, with Redemption, 5 Years 199
Expense Example, with Redemption, 10 Years 453
Principal LifeTime Hybrid 2025 Fund | Principal LifeTime Hybrid 2025 Fund, R-6  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 31
Expense Example, with Redemption, 3 Years 97
Expense Example, with Redemption, 5 Years 169
Expense Example, with Redemption, 10 Years 381
Principal LifeTime Hybrid 2030 Fund | Principal LifeTime Hybrid 2030 Fund, Class J  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 146
Expense Example, with Redemption, 3 Years 144
Expense Example, with Redemption, 5 Years 252
Expense Example, with Redemption, 10 Years 567
Principal LifeTime Hybrid 2030 Fund | Principal LifeTime Hybrid 2030 Fund, Institutional Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 34
Expense Example, with Redemption, 3 Years 108
Expense Example, with Redemption, 5 Years 190
Expense Example, with Redemption, 10 Years 430
Principal LifeTime Hybrid 2030 Fund | Principal LifeTime Hybrid 2030 Fund, R-6  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 30
Expense Example, with Redemption, 3 Years 93
Expense Example, with Redemption, 5 Years 163
Expense Example, with Redemption, 10 Years 368
Principal LifeTime Hybrid 2035 Fund | Principal LifeTime Hybrid 2035 Fund, Class J  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 145
Expense Example, with Redemption, 3 Years 141
Expense Example, with Redemption, 5 Years 246
Expense Example, with Redemption, 10 Years 555
Principal LifeTime Hybrid 2035 Fund | Principal LifeTime Hybrid 2035 Fund, Institutional Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 33
Expense Example, with Redemption, 3 Years 107
Expense Example, with Redemption, 5 Years 189
Expense Example, with Redemption, 10 Years 429
Principal LifeTime Hybrid 2035 Fund | Principal LifeTime Hybrid 2035 Fund, R-6  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 30
Expense Example, with Redemption, 3 Years 93
Expense Example, with Redemption, 5 Years 163
Expense Example, with Redemption, 10 Years 368
Principal LifeTime Hybrid 2040 Fund | Principal LifeTime Hybrid 2040 Fund, Class J  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 148
Expense Example, with Redemption, 3 Years 151
Expense Example, with Redemption, 5 Years 263
Expense Example, with Redemption, 10 Years 591
Principal LifeTime Hybrid 2040 Fund | Principal LifeTime Hybrid 2040 Fund, Institutional Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 35
Expense Example, with Redemption, 3 Years 112
Expense Example, with Redemption, 5 Years 196
Expense Example, with Redemption, 10 Years 442
Principal LifeTime Hybrid 2040 Fund | Principal LifeTime Hybrid 2040 Fund, R-6  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 32
Expense Example, with Redemption, 3 Years 100
Expense Example, with Redemption, 5 Years 174
Expense Example, with Redemption, 10 Years 393
Principal LifeTime Hybrid 2045 Fund | Principal LifeTime Hybrid 2045 Fund, Class J  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 150
Expense Example, with Redemption, 3 Years 157
Expense Example, with Redemption, 5 Years 274
Expense Example, with Redemption, 10 Years 616
Principal LifeTime Hybrid 2045 Fund | Principal LifeTime Hybrid 2045 Fund, Institutional Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 36
Expense Example, with Redemption, 3 Years 119
Expense Example, with Redemption, 5 Years 210
Expense Example, with Redemption, 10 Years 477
Principal LifeTime Hybrid 2045 Fund | Principal LifeTime Hybrid 2045 Fund, R-6  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 33
Expense Example, with Redemption, 3 Years 103
Expense Example, with Redemption, 5 Years 180
Expense Example, with Redemption, 10 Years 406
Principal LifeTime Hybrid 2050 Fund | Principal LifeTime Hybrid 2050 Fund, Class J  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 153
Expense Example, with Redemption, 3 Years 167
Expense Example, with Redemption, 5 Years 291
Expense Example, with Redemption, 10 Years 653
Principal LifeTime Hybrid 2050 Fund | Principal LifeTime Hybrid 2050 Fund, Institutional Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 37
Expense Example, with Redemption, 3 Years 122
Expense Example, with Redemption, 5 Years 216
Expense Example, with Redemption, 10 Years 490
Principal LifeTime Hybrid 2050 Fund | Principal LifeTime Hybrid 2050 Fund, R-6  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 34
Expense Example, with Redemption, 3 Years 106
Expense Example, with Redemption, 5 Years 185
Expense Example, with Redemption, 10 Years 418
Principal LifeTime Hybrid 2055 Fund | Principal LifeTime Hybrid 2055 Fund, Class J  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 158
Expense Example, with Redemption, 3 Years 183
Expense Example, with Redemption, 5 Years 318
Expense Example, with Redemption, 10 Years 714
Principal LifeTime Hybrid 2055 Fund | Principal LifeTime Hybrid 2055 Fund, Institutional Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 37
Expense Example, with Redemption, 3 Years 127
Expense Example, with Redemption, 5 Years 225
Expense Example, with Redemption, 10 Years 513
Principal LifeTime Hybrid 2055 Fund | Principal LifeTime Hybrid 2055 Fund, R-6  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 34
Expense Example, with Redemption, 3 Years 108
Expense Example, with Redemption, 5 Years 190
Expense Example, with Redemption, 10 Years 430
Principal LifeTime Hybrid 2060 Fund | Principal LifeTime Hybrid 2060 Fund, Class J  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 162
Expense Example, with Redemption, 3 Years 206
Expense Example, with Redemption, 5 Years 363
Expense Example, with Redemption, 10 Years 818
Principal LifeTime Hybrid 2060 Fund | Principal LifeTime Hybrid 2060 Fund, Institutional Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 37
Expense Example, with Redemption, 3 Years 140
Expense Example, with Redemption, 5 Years 252
Expense Example, with Redemption, 10 Years 581
Principal LifeTime Hybrid 2060 Fund | Principal LifeTime Hybrid 2060 Fund, R-6  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 34
Expense Example, with Redemption, 3 Years 113
Expense Example, with Redemption, 5 Years 199
Expense Example, with Redemption, 10 Years 453
Principal LifeTime Hybrid 2065 Fund | Principal LifeTime Hybrid 2065 Fund, Class J  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 162
Expense Example, with Redemption, 3 Years 245
Expense Example, with Redemption, 5 Years 443
Expense Example, with Redemption, 10 Years 1,016
Principal LifeTime Hybrid 2065 Fund | Principal LifeTime Hybrid 2065, Institutional Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 37
Expense Example, with Redemption, 3 Years 224
Expense Example, with Redemption, 5 Years 428
Expense Example, with Redemption, 10 Years 1,014
Principal LifeTime Hybrid 2065 Fund | Principal LifeTime Hybrid 2065, Class R-6  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 34
Expense Example, with Redemption, 3 Years 126
Expense Example, with Redemption, 5 Years 226
Expense Example, with Redemption, 10 Years 521
Principal LifeTime Hybrid 2070 Fund | Principal LifeTime Hybrid 2070 Fund Class J  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 162
Expense Example, with Redemption, 3 Years 450
Expense Example, with Redemption, 5 Years 863
Expense Example, with Redemption, 10 Years 2,018
Principal LifeTime Hybrid 2070 Fund | Principal LifeTime Hybrid 2070 Fund Institutional Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 37
Expense Example, with Redemption, 3 Years 449
Expense Example, with Redemption, 5 Years 887
Expense Example, with Redemption, 10 Years 2,106
Principal LifeTime Hybrid 2070 Fund | Principal LifeTime Hybrid 2070 Fund Class R-6  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 34
Expense Example, with Redemption, 3 Years 273
Expense Example, with Redemption, 5 Years 531
Expense Example, with Redemption, 10 Years 1,271
Real Estate Securities Fund | Real Estate Securities Fund, Class A  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 665
Expense Example, with Redemption, 3 Years 907
Expense Example, with Redemption, 5 Years 1,168
Expense Example, with Redemption, 10 Years 1,914
Real Estate Securities Fund | Real Estate Securities Fund, Class C  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 310
Expense Example, with Redemption, 3 Years 649
Expense Example, with Redemption, 5 Years 1,114
Expense Example, with Redemption, 10 Years 2,174
Real Estate Securities Fund | Real Estate Securities Fund, Class J  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 211
Expense Example, with Redemption, 3 Years 347
Expense Example, with Redemption, 5 Years 601
Expense Example, with Redemption, 10 Years 1,329
Real Estate Securities Fund | Real Estate Securities Fund, Institutional Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 88
Expense Example, with Redemption, 3 Years 283
Expense Example, with Redemption, 5 Years 495
Expense Example, with Redemption, 10 Years 1,104
Real Estate Securities Fund | Real Estate Securities Fund, Class R-3  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 139
Expense Example, with Redemption, 3 Years 434
Expense Example, with Redemption, 5 Years 750
Expense Example, with Redemption, 10 Years 1,646
Real Estate Securities Fund | Real Estate Securities Fund, Class R-5  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 108
Expense Example, with Redemption, 3 Years 337
Expense Example, with Redemption, 5 Years 585
Expense Example, with Redemption, 10 Years 1,294
Real Estate Securities Fund | Real Estate Securities Fund, Class R-6  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 83
Expense Example, with Redemption, 3 Years 259
Expense Example, with Redemption, 5 Years 450
Expense Example, with Redemption, 10 Years 1,002
Strategic Asset Management Balanced Portfolio | SAM Balanced Fund, Class A  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 651
Expense Example, with Redemption, 3 Years 866
Expense Example, with Redemption, 5 Years 1,098
Expense Example, with Redemption, 10 Years 1,762
Strategic Asset Management Balanced Portfolio | SAM Balanced Fund, Class C  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 285
Expense Example, with Redemption, 3 Years 573
Expense Example, with Redemption, 5 Years 985
Expense Example, with Redemption, 10 Years 1,935
Strategic Asset Management Balanced Portfolio | SAM Balanced Fund, Class J  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 193
Expense Example, with Redemption, 3 Years 290
Expense Example, with Redemption, 5 Years 504
Expense Example, with Redemption, 10 Years 1,120
Strategic Asset Management Balanced Portfolio | SAM Balanced Fund, Institutional Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 77
Expense Example, with Redemption, 3 Years 240
Expense Example, with Redemption, 5 Years 417
Expense Example, with Redemption, 10 Years 930
Strategic Asset Management Balanced Portfolio | SAM Balanced Fund, Class R-3  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 133
Expense Example, with Redemption, 3 Years 415
Expense Example, with Redemption, 5 Years 718
Expense Example, with Redemption, 10 Years 1,579
Strategic Asset Management Balanced Portfolio | SAM Balanced Fund, Class R-5  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 102
Expense Example, with Redemption, 3 Years 318
Expense Example, with Redemption, 5 Years 552
Expense Example, with Redemption, 10 Years 1,225
Strategic Asset Management Conservative Balanced Portfolio | SAM Conservative Balanced Fund, Class A  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 648
Expense Example, with Redemption, 3 Years 857
Expense Example, with Redemption, 5 Years 1,082
Expense Example, with Redemption, 10 Years 1,729
Strategic Asset Management Conservative Balanced Portfolio | SAM Conservative Balanced Fund, Class C  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 285
Expense Example, with Redemption, 3 Years 573
Expense Example, with Redemption, 5 Years 985
Expense Example, with Redemption, 10 Years 1,927
Strategic Asset Management Conservative Balanced Portfolio | SAM Conservative Balanced Fund, Class J  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 189
Expense Example, with Redemption, 3 Years 278
Expense Example, with Redemption, 5 Years 482
Expense Example, with Redemption, 10 Years 1,073
Strategic Asset Management Conservative Balanced Portfolio | SAM Conservative Balanced Fund, Institutional Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 75
Expense Example, with Redemption, 3 Years 233
Expense Example, with Redemption, 5 Years 406
Expense Example, with Redemption, 10 Years 906
Strategic Asset Management Conservative Balanced Portfolio | SAM Conservative Balanced Fund, Class R-3  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 130
Expense Example, with Redemption, 3 Years 406
Expense Example, with Redemption, 5 Years 702
Expense Example, with Redemption, 10 Years 1,545
Strategic Asset Management Conservative Balanced Portfolio | SAM Conservative Balanced Fund, Class R-5  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 99
Expense Example, with Redemption, 3 Years 309
Expense Example, with Redemption, 5 Years 536
Expense Example, with Redemption, 10 Years 1,190
Strategic Asset Management Conservative Growth Portfolio | SAM Conservative Growth Fund, Class A  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 654
Expense Example, with Redemption, 3 Years 875
Expense Example, with Redemption, 5 Years 1,113
Expense Example, with Redemption, 10 Years 1,795
Strategic Asset Management Conservative Growth Portfolio | SAM Conservative Growth Fund, Class C  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 288
Expense Example, with Redemption, 3 Years 582
Expense Example, with Redemption, 5 Years 1,001
Expense Example, with Redemption, 10 Years 1,968
Strategic Asset Management Conservative Growth Portfolio | SAM Conservative Growth Fund, Class J  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 196
Expense Example, with Redemption, 3 Years 300
Expense Example, with Redemption, 5 Years 520
Expense Example, with Redemption, 10 Years 1,155
Strategic Asset Management Conservative Growth Portfolio | SAM Conservative Growth Fund, Institutional Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 81
Expense Example, with Redemption, 3 Years 252
Expense Example, with Redemption, 5 Years 439
Expense Example, with Redemption, 10 Years 978
Strategic Asset Management Conservative Growth Portfolio | SAM Conservative Growth Fund, Class R-3  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 136
Expense Example, with Redemption, 3 Years 425
Expense Example, with Redemption, 5 Years 734
Expense Example, with Redemption, 10 Years 1,613
Strategic Asset Management Conservative Growth Portfolio | SAM Conservative Growth Fund, Class R-5  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 105
Expense Example, with Redemption, 3 Years 328
Expense Example, with Redemption, 5 Years 569
Expense Example, with Redemption, 10 Years 1,259
Strategic Asset Management Flexible Income Portfolio | SAM Flexible Income Fund, Class A  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 473
Expense Example, with Redemption, 3 Years 681
Expense Example, with Redemption, 5 Years 907
Expense Example, with Redemption, 10 Years 1,554
Strategic Asset Management Flexible Income Portfolio | SAM Flexible Income Fund, Class C  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 282
Expense Example, with Redemption, 3 Years 563
Expense Example, with Redemption, 5 Years 970
Expense Example, with Redemption, 10 Years 1,897
Strategic Asset Management Flexible Income Portfolio | SAM Flexible Income Fund, Class J  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 187
Expense Example, with Redemption, 3 Years 271
Expense Example, with Redemption, 5 Years 471
Expense Example, with Redemption, 10 Years 1,049
Strategic Asset Management Flexible Income Portfolio | SAM Flexible Income Fund, Institutional Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 75
Expense Example, with Redemption, 3 Years 233
Expense Example, with Redemption, 5 Years 406
Expense Example, with Redemption, 10 Years 906
Strategic Asset Management Flexible Income Portfolio | SAM Flexible Income Fund, Class R-3  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 128
Expense Example, with Redemption, 3 Years 400
Expense Example, with Redemption, 5 Years 692
Expense Example, with Redemption, 10 Years 1,523
Strategic Asset Management Flexible Income Portfolio | SAM Flexible Income Fund, Class R-5  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 97
Expense Example, with Redemption, 3 Years 303
Expense Example, with Redemption, 5 Years 525
Expense Example, with Redemption, 10 Years 1,166
Strategic Asset Management Strategic Growth Portfolio | SAM Strategic Growth Fund, Class A  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 657
Expense Example, with Redemption, 3 Years 883
Expense Example, with Redemption, 5 Years 1,128
Expense Example, with Redemption, 10 Years 1,827
Strategic Asset Management Strategic Growth Portfolio | SAM Strategic Growth Fund, Class C  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 293
Expense Example, with Redemption, 3 Years 597
Expense Example, with Redemption, 5 Years 1,026
Expense Example, with Redemption, 10 Years 2,016
Strategic Asset Management Strategic Growth Portfolio | SAM Strategic Growth Fund, Class J [Member]  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 200
Expense Example, with Redemption, 3 Years 312
Expense Example, with Redemption, 5 Years 542
Expense Example, with Redemption, 10 Years 1,201
Strategic Asset Management Strategic Growth Portfolio | SAM Strategic Growth Fund, Institutional Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 84
Expense Example, with Redemption, 3 Years 262
Expense Example, with Redemption, 5 Years 455
Expense Example, with Redemption, 10 Years 1,014
Strategic Asset Management Strategic Growth Portfolio | SAM Strategic Growth Fund, Class R-3  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 139
Expense Example, with Redemption, 3 Years 434
Expense Example, with Redemption, 5 Years 750
Expense Example, with Redemption, 10 Years 1,646
Strategic Asset Management Strategic Growth Portfolio | SAM Strategic Growth Fund, Class R-5  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 108
Expense Example, with Redemption, 3 Years 337
Expense Example, with Redemption, 5 Years 585
Expense Example, with Redemption, 10 Years 1,294
Short-Term Income Fund | Short-Term Income Fund, Class A  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 285
Expense Example, with Redemption, 3 Years 413
Expense Example, with Redemption, 5 Years 552
Expense Example, with Redemption, 10 Years 958
Short-Term Income Fund | Short-Term Income Fund, Class C  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 257
Expense Example, with Redemption, 3 Years 486
Expense Example, with Redemption, 5 Years 839
Expense Example, with Redemption, 10 Years 1,581
Short-Term Income Fund | Short-Term Income Fund, Class J  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 160
Expense Example, with Redemption, 3 Years 189
Expense Example, with Redemption, 5 Years 329
Expense Example, with Redemption, 10 Years 738
Short-Term Income Fund | Short-Term Income Fund, Institutional Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 40
Expense Example, with Redemption, 3 Years 125
Expense Example, with Redemption, 5 Years 219
Expense Example, with Redemption, 10 Years 493
Short-Term Income Fund | Short-Term Income Fund, Class R-3  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 94
Expense Example, with Redemption, 3 Years 293
Expense Example, with Redemption, 5 Years 509
Expense Example, with Redemption, 10 Years 1,131
Short-Term Income Fund | Short-Term Income Fund, Class R-5  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 62
Expense Example, with Redemption, 3 Years 195
Expense Example, with Redemption, 5 Years 340
Expense Example, with Redemption, 10 Years 762
SmallCap Fund | SmallCap Fund, Class A  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 657
Expense Example, with Redemption, 3 Years 883
Expense Example, with Redemption, 5 Years 1,128
Expense Example, with Redemption, 10 Years 1,827
SmallCap Fund | SmallCap Fund, Class J  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 199
Expense Example, with Redemption, 3 Years 309
Expense Example, with Redemption, 5 Years 536
Expense Example, with Redemption, 10 Years 1,190
SmallCap Fund | SmallCap Fund, Institutional Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 87
Expense Example, with Redemption, 3 Years 278
Expense Example, with Redemption, 5 Years 485
Expense Example, with Redemption, 10 Years 1,082
SmallCap Fund | SmallCap Fund, Class R-3  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 132
Expense Example, with Redemption, 3 Years 412
Expense Example, with Redemption, 5 Years 713
Expense Example, with Redemption, 10 Years 1,568
SmallCap Fund | SmallCap Fund, Class R-5  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 101
Expense Example, with Redemption, 3 Years 315
Expense Example, with Redemption, 5 Years 547
Expense Example, with Redemption, 10 Years 1,213
SmallCap Fund | SmallCap Fund, Class R-6  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 75
Expense Example, with Redemption, 3 Years 233
Expense Example, with Redemption, 5 Years 406
Expense Example, with Redemption, 10 Years 906
SmallCap Growth Fund I | SmallCap Growth I Fund, Class J  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 216
Expense Example, with Redemption, 3 Years 366
Expense Example, with Redemption, 5 Years 636
Expense Example, with Redemption, 10 Years 1,407
SmallCap Growth Fund I | SmallCap Growth I Fund, Institutional Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 100
Expense Example, with Redemption, 3 Years 316
Expense Example, with Redemption, 5 Years 551
Expense Example, with Redemption, 10 Years 1,223
SmallCap Growth Fund I | SmallCap Growth I Fund, Class R-3  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 147
Expense Example, with Redemption, 3 Years 460
Expense Example, with Redemption, 5 Years 796
Expense Example, with Redemption, 10 Years 1,745
SmallCap Growth Fund I | SmallCap Growth I Fund, Class R-5  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 115
Expense Example, with Redemption, 3 Years 363
Expense Example, with Redemption, 5 Years 631
Expense Example, with Redemption, 10 Years 1,396
SmallCap Growth Fund I | SmallCap Growth Fund I, Class R-6  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 89
Expense Example, with Redemption, 3 Years 284
Expense Example, with Redemption, 5 Years 496
Expense Example, with Redemption, 10 Years 1,105
SmallCap S&P 600 Index Fund | SmallCap S&P 600 Index Fund, Class J  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 140
Expense Example, with Redemption, 3 Years 125
Expense Example, with Redemption, 5 Years 219
Expense Example, with Redemption, 10 Years 493
SmallCap S&P 600 Index Fund | SmallCap S&P 600 Index Fund, Institutional Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 22
Expense Example, with Redemption, 3 Years 76
Expense Example, with Redemption, 5 Years 137
Expense Example, with Redemption, 10 Years 314
SmallCap S&P 600 Index Fund | SmallCap S&P 600 Index Fund, Class R-3  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 75
Expense Example, with Redemption, 3 Years 233
Expense Example, with Redemption, 5 Years 406
Expense Example, with Redemption, 10 Years 906
SmallCap S&P 600 Index Fund | SmallCap S&P 600 Index Fund, Class R-5  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 43
Expense Example, with Redemption, 3 Years 135
Expense Example, with Redemption, 5 Years 235
Expense Example, with Redemption, 10 Years 530
SmallCap S&P 600 Index Fund | SmallCap S&P 600 Index Fund, Class R-6  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 17
Expense Example, with Redemption, 3 Years 55
Expense Example, with Redemption, 5 Years 96
Expense Example, with Redemption, 10 Years 217
SmallCap Value Fund II | SmallCap Value II Fund, Class J  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 223
Expense Example, with Redemption, 3 Years 388
Expense Example, with Redemption, 5 Years 674
Expense Example, with Redemption, 10 Years 1,487
SmallCap Value Fund II | SmallCap Value II Fund, Institutional Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 96
Expense Example, with Redemption, 3 Years 317
Expense Example, with Redemption, 5 Years 555
Expense Example, with Redemption, 10 Years 1,241
SmallCap Value Fund II | SmallCap Value II Fund, Class R-3  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 148
Expense Example, with Redemption, 3 Years 463
Expense Example, with Redemption, 5 Years 801
Expense Example, with Redemption, 10 Years 1,756
SmallCap Value Fund II | SmallCap Value II Fund, Class R-5  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 116
Expense Example, with Redemption, 3 Years 366
Expense Example, with Redemption, 5 Years 636
Expense Example, with Redemption, 10 Years 1,407
SmallCap Value Fund II | SmallCap Value Fund II, Class R-6  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 91
Expense Example, with Redemption, 3 Years 295
Expense Example, with Redemption, 5 Years 515
Expense Example, with Redemption, 10 Years 1,150
Tax-Exempt Bond Fund | Tax-Exempt Bond Fund, Class A  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 465
Expense Example, with Redemption, 3 Years 657
Expense Example, with Redemption, 5 Years 865
Expense Example, with Redemption, 10 Years 1,464
Tax-Exempt Bond Fund | Tax-Exempt Bond Fund, Class C  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 285
Expense Example, with Redemption, 3 Years 573
Expense Example, with Redemption, 5 Years 985
Expense Example, with Redemption, 10 Years 1,901
Tax-Exempt Bond Fund | Tax-Exempt Bond Fund, Institutional  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 65
Expense Example, with Redemption, 3 Years 222
Expense Example, with Redemption, 5 Years 393
Expense Example, with Redemption, 10 Years $ 887