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Preneed Activities Schedule of Securities (Details) - USD ($) $ in Thousands | Mar. 31, 2025 | Dec. 31, 2024
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Debt Securities, Available-for-sale [Line Items] |  |
Debt Securities, Available-for-Sale and Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss | $ 4,236,181 |
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain | 690,344 |
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss | (210,893) |
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value | 4,715,632 |
Estimate of Fair Value Measurement [Member] |  |
Debt Securities, Available-for-sale [Line Items] |  |
Debt Securities, Available-for-Sale and Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss |  | $ 4,121,358
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain |  | 798,935
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss |  | (141,210)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value |  | 4,779,083
Fair Value, Inputs, Level 2 [Member] | US Treasury Securities [Member] |  |
Debt Securities, Available-for-sale [Line Items] |  |
Debt Securities, Available-for-Sale and Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss | 49,674 | 43,699
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain | 292 | 178
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss | (684) | (849)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value | 49,282 | 43,028
Fair Value, Inputs, Level 2 [Member] | Debt Security, Government, Non-US [Member] |  |
Debt Securities, Available-for-sale [Line Items] |  |
Debt Securities, Available-for-Sale and Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss | 25,514 | 25,979
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 | 25,514 | 25,979
Fair Value, Inputs, Level 2 [Member] | Corporate Debt Securities [Member] |  |
Debt Securities, Available-for-sale [Line Items] |  |
Debt Securities, Available-for-Sale and Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss | 20,204 | 10,087
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain | 470 | 326
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss | (260) | (11)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value | 20,414 | 10,402
Fair Value, Inputs, Level 2 [Member] | Residential Mortgage Backed Securities [Member] |  |
Debt Securities, Available-for-sale [Line Items] |  |
Debt Securities, Available-for-Sale and Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss | 4,202 | 3,811
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain | 73 | 39
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss | (45) | (49)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value | 4,230 | 3,801
Fair Value, Inputs, Level 2 [Member] | Asset-backed Securities [Member] |  |
Debt Securities, Available-for-sale [Line Items] |  |
Debt Securities, Available-for-Sale and Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss | 1,877 | 290
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain | 3 | 0
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss | (83) | (47)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value | 1,797 | 243
Fair Value, Inputs, Level 2 [Member] | Preferred Stock securities [Member] |  |
Debt Securities, Available-for-sale [Line Items] |  |
Debt Securities, Available-for-Sale and Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss | 22,232 | 8,059
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain | 942 | 930
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss | (345) | (25)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value | 22,829 | 8,964
Fair Value, Inputs, Level 1 [Member] | US Common Stock Securities [Member] |  |
Debt Securities, Available-for-sale [Line Items] |  |
Debt Securities, Available-for-Sale and Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss | 1,979,831 | 1,887,854
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain | 498,824 | 617,695
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss | (143,522) | (68,404)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value | 2,335,133 | 2,437,145
Fair Value, Inputs, Level 1 [Member] | Canada Common Stock Securities [Member] |  |
Debt Securities, Available-for-sale [Line Items] |  |
Debt Securities, Available-for-Sale and Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss | 30,573 | 41,362
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain | 16,594 | 20,164
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss | (1,218) | (1,160)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value | 45,949 | 60,366
Fair Value, Inputs, Level 1 [Member] | Other International Common Stock Securities [Member] |  |
Debt Securities, Available-for-sale [Line Items] |  |
Debt Securities, Available-for-Sale and Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss | 134,520 | 120,605
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain | 26,358 | 34,414
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss | (12,868) | (10,382)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value | 148,010 | 144,637
Fair Value, Inputs, Level 1 [Member] | Equity Funds [Member] |  |
Debt Securities, Available-for-sale [Line Items] |  |
Debt Securities, Available-for-Sale and Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss | 936,866 | 950,990
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain | 142,544 | 121,006
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss | (14,081) | (13,892)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value | 1,065,329 | 1,058,104
Fair Value, Inputs, Level 1 [Member] | Fixed Income Funds [Member] |  |
Debt Securities, Available-for-sale [Line Items] |  |
Debt Securities, Available-for-Sale and Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss | 1,030,688 | 1,028,622
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain | 4,244 | 4,183
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss | (37,787) | (46,391)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value | 997,145 | 986,414
Reported Value Measurement [Member] |  |
Debt Securities, Available-for-sale [Line Items] |  |
Debt Securities, Available-for-Sale and Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss | 2,031,658 |
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain | 328,439 |
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss | (68,102) |
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value | 2,291,995 |
Reported Value Measurement [Member] | Commingled funds - Fixed inc [Member] |  |
Debt Securities, Available-for-sale [Line Items] |  |
Debt Securities, Available-for-Sale and Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss | 860,989 | 862,350
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain | 3,743 | 2,597
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss | (57,916) | (60,646)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value | 806,816 | 804,301
Reported Value Measurement [Member] | Commingled funds - Equity [Member] |  |
Debt Securities, Available-for-sale [Line Items] |  |
Debt Securities, Available-for-Sale and Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss | 344,974 | 346,553
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain | 117,804 | 99,647
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss | (74) | (316)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value | 462,704 | 445,884
Reported Value Measurement [Member] | Money Market Funds [Member] |  |
Debt Securities, Available-for-sale [Line Items] |  |
Debt Securities, Available-for-Sale and Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss | 384,453 | 432,821
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 | 384,453 | 432,821
Reported Value Measurement [Member] | Private Equity Funds [Member] |  |
Debt Securities, Available-for-sale [Line Items] |  |
Debt Securities, Available-for-Sale and Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss | 441,242 | 438,449
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain | 206,892 | 193,638
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss | (10,112) | (9,453)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value | 638,022 | 622,634
Reported Value Measurement [Member] | Reported At Net Asset Value [Member] |  |
Debt Securities, Available-for-sale [Line Items] |  |
Debt Securities, Available-for-Sale and Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss |  | 2,080,173
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain |  | 295,882
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss |  | (70,415)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value |  | 2,305,640
Estimate of Fair Value Measurement [Member] |  |
Debt Securities, Available-for-sale [Line Items] |  |
Debt Securities, Available-for-Sale and Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss | 6,267,839 | 6,201,531
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain | 1,018,783 | 1,094,817
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss | (278,995) | (211,625)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value | $ 7,007,627 | $ 7,084,723

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