v3.26.1
Preneed Activities - Cost and market values associated with trust investments (Details) - USD ($)
$ in Thousands
Jun. 30, 2026
Dec. 31, 2025
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Debt Securities, Available-for-Sale and Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss $ 4,196,395  
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain 1,281,693  
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss (192,906)  
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value 5,285,182  
Reported Value Measurement [Member]    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Debt Securities, Available-for-Sale and Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss 2,795,480  
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain 406,752  
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss (72,397)  
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value 3,129,835  
Estimate of Fair Value Measurement [Member]    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Debt Securities, Available-for-Sale and Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss 6,991,875 $ 6,672,828
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain 1,688,445 1,488,133
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss (265,303) (195,951)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value 8,415,017 7,965,010
Commingled funds - Fixed inc [Member] | Reported Value Measurement [Member]    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Debt Securities, Available-for-Sale and Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss 1,465,924 1,387,350
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain 6,012 14,443
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss (60,708) (50,208)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value 1,411,228 1,351,585
Commingled funds - Equity [Member] | Reported Value Measurement [Member]    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Debt Securities, Available-for-Sale and Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss 375,315 362,862
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain 132,081 155,590
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss (1,573) 0
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value 505,823 518,452
Money Market Funds [Member] | Reported Value Measurement [Member]    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Debt Securities, Available-for-Sale and Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss 427,267 423,957
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain 0 0
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss 0 0
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value 427,267 423,957
Private Equity Funds [Member] | Reported Value Measurement [Member]    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Debt Securities, Available-for-Sale and Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss 526,974 503,898
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain 268,659 228,320
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss (10,116) (9,713)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value 785,517 722,505
Reported At Net Asset Value [Member] | Reported Value Measurement [Member]    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Debt Securities, Available-for-Sale and Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss   2,678,067
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain   398,353
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss   (59,921)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value   3,016,499
Estimate of Fair Value Measurement [Member]    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Debt Securities, Available-for-Sale and Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss   3,994,761
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain   1,089,780
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss   (136,030)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value   4,948,511
Fair Value, Inputs, Level 2 [Member] | US Treasury Securities [Member]    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Debt Securities, Available-for-Sale and Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss 52,580 50,233
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain 111 305
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss (604) (488)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value 52,087 50,050
Fair Value, Inputs, Level 2 [Member] | Debt Security, Government, Non-US [Member]    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Debt Securities, Available-for-Sale and Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss 25,423 26,086
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain 0 0
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss 0 0
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value 25,423 26,086
Fair Value, Inputs, Level 2 [Member] | Corporate Debt Securities [Member]    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Debt Securities, Available-for-Sale and Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss 9,962 10,352
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain 219 310
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss (8) (7)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value 10,173 10,655
Fair Value, Inputs, Level 2 [Member] | Residential Mortgage Backed Securities [Member]    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Debt Securities, Available-for-Sale and Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss 1,969 3,202
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain 14 68
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss (10) (28)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value 1,973 3,242
Fair Value, Inputs, Level 2 [Member] | Asset-backed Securities [Member]    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Debt Securities, Available-for-Sale and Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss 258 279
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain 0 0
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss (41) (41)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value 217 238
Fair Value, Inputs, Level 2 [Member] | Preferred Stock securities [Member]    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Debt Securities, Available-for-Sale and Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss 20,002 13,831
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain 1,902 2,428
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss (1,406) 0
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value 20,498 16,259
Fair Value, Inputs, Level 1 [Member] | US Common Stock Securities [Member]    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Debt Securities, Available-for-Sale and Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss 2,165,257 2,071,402
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain 859,614 745,982
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss (127,348) (95,511)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value 2,897,523 2,721,873
Fair Value, Inputs, Level 1 [Member] | Canada Common Stock Securities [Member]    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Debt Securities, Available-for-Sale and Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss 45,652 41,650
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain 38,911 34,904
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss (1,888) (1,219)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value 82,675 75,335
Fair Value, Inputs, Level 1 [Member] | Other International Common Stock Securities [Member]    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Debt Securities, Available-for-Sale and Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss 173,969 167,881
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain 50,072 43,880
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss (18,347) (5,910)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value 205,694 205,851
Fair Value, Inputs, Level 1 [Member] | Equity Funds [Member]    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Debt Securities, Available-for-Sale and Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss 980,763 938,778
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain 325,519 253,372
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss (10,896) (5,546)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value 1,295,386 1,186,604
Fair Value, Inputs, Level 1 [Member] | Fixed Income Funds [Member]    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Debt Securities, Available-for-Sale and Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss 720,560 671,067
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain 5,331 8,531
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss (32,358) (27,280)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value $ 693,533 $ 652,318