Investment Securities - Unrealized Losses on Securities Available-for-Sale (Details) - USD ($)
$ in Thousands |
Mar. 31, 2023 |
Dec. 31, 2022 |
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months |
$ 208,086
|
$ 1,057,030
|
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss |
23,552
|
101,408
|
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer |
4,640,520
|
3,777,773
|
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss |
(719,607)
|
(709,728)
|
| Debt Securities, Available-for-sale, Unrealized Loss Position, Total |
4,848,606
|
4,834,803
|
| Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss, Total |
743,159
|
811,136
|
| Agency residential MBS |
|
|
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months |
6,665
|
52,556
|
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss |
306
|
6,193
|
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer |
2,242,415
|
2,189,485
|
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss |
(396,589)
|
(436,803)
|
| Debt Securities, Available-for-sale, Unrealized Loss Position, Total |
2,249,080
|
2,242,041
|
| Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss, Total |
396,895
|
442,996
|
| Agency commercial MBS |
|
|
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months |
20,806
|
316,892
|
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss |
977
|
31,139
|
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer |
470,875
|
170,714
|
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss |
(52,822)
|
(30,747)
|
| Debt Securities, Available-for-sale, Unrealized Loss Position, Total |
491,681
|
487,606
|
| Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss, Total |
53,799
|
61,886
|
| Agency residential CMOs |
|
|
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months |
35,116
|
245,755
|
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss |
2,707
|
22,748
|
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer |
420,566
|
211,309
|
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss |
(50,914)
|
(37,363)
|
| Debt Securities, Available-for-sale, Unrealized Loss Position, Total |
455,682
|
457,064
|
| Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss, Total |
53,621
|
60,111
|
| Municipal securities |
|
|
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months |
836
|
37,380
|
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss |
44
|
3,129
|
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer |
344,803
|
298,266
|
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss |
(50,026)
|
(57,269)
|
| Debt Securities, Available-for-sale, Unrealized Loss Position, Total |
345,639
|
335,646
|
| Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss, Total |
50,070
|
60,398
|
| U.S. Treasury securities |
|
|
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months |
4,993
|
4,972
|
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss |
7
|
26
|
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer |
680,443
|
665,098
|
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss |
(85,765)
|
(101,049)
|
| Debt Securities, Available-for-sale, Unrealized Loss Position, Total |
685,436
|
670,070
|
| Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss, Total |
85,772
|
101,075
|
| Corporate Debt Securities |
|
|
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months |
119,754
|
302,643
|
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss |
18,667
|
32,124
|
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer |
170,040
|
4,256
|
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss |
(36,286)
|
(744)
|
| Debt Securities, Available-for-sale, Unrealized Loss Position, Total |
289,794
|
306,899
|
| Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss, Total |
54,953
|
32,868
|
| Collateralized loan obligations |
|
|
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months |
18,690
|
27,704
|
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss |
838
|
1,818
|
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer |
84,304
|
74,558
|
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss |
(5,334)
|
(5,080)
|
| Debt Securities, Available-for-sale, Unrealized Loss Position, Total |
102,994
|
102,262
|
| Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss, Total |
6,172
|
6,898
|
| Private label commercial MBS |
|
|
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months |
0
|
10,204
|
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss |
0
|
508
|
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer |
25,534
|
16,623
|
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss |
(1,796)
|
(1,568)
|
| Debt Securities, Available-for-sale, Unrealized Loss Position, Total |
25,534
|
26,827
|
| Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss, Total |
1,796
|
2,076
|
| SBA securities |
|
|
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months |
0
|
17,250
|
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss |
0
|
1,274
|
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer |
15,906
|
0
|
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss |
(989)
|
0
|
| Debt Securities, Available-for-sale, Unrealized Loss Position, Total |
15,906
|
17,250
|
| Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss, Total |
989
|
1,274
|
| Private Label Collateralized Mortgage Obligations |
|
|
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months |
1,226
|
19,261
|
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss |
6
|
1,294
|
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer |
163,177
|
147,464
|
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss |
(38,679)
|
(39,105)
|
| Debt Securities, Available-for-sale, Unrealized Loss Position, Total |
164,403
|
166,725
|
| Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss, Total |
38,685
|
40,399
|
| Asset-backed Securities |
|
|
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months |
0
|
22,413
|
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss |
0
|
1,155
|
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer |
22,457
|
0
|
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss |
(407)
|
0
|
| Debt Securities, Available-for-sale, Unrealized Loss Position, Total |
22,457
|
22,413
|
| Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss, Total |
$ 407
|
$ 1,155
|