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Preneed Activities Schedule of Securities (Details) - USD ($) $ in Thousands | Jun. 30, 2024 | Dec. 31, 2023
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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 | $ 4,066,900 |
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain | 733,844 |
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss | (218,071) |
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value | 4,582,673 |
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 |  | $ 3,865,476
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain |  | 642,572
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss |  | (210,810)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value |  | 4,297,238
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 | 41,008 | 45,645
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain | 92 | 145
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss | (1,174) | (1,376)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value | 39,926 | 44,414
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 | 28,139 | 31,896
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 | 28,139 | 31,896
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 | 10,496 | 10,642
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain | 77 | 138
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss | (16) | (17)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value | 10,557 | 10,763
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 | 5,306 | 5,452
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain | 23 | 29
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss | (93) | (104)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value | 5,236 | 5,377
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 | 287 | 291
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 | (56) | (51)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value | 231 | 240
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 | 411 | 417
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 | (47) | (97)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value | 364 | 320
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 | 1,866,686 | 1,744,919
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain | 540,987 | 478,226
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss | (78,600) | (78,630)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value | 2,329,073 | 2,144,515
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 | 41,053 | 42,721
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain | 13,951 | 20,251
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss | (1,497) | (676)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value | 53,507 | 62,296
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 | 95,201 | 108,106
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain | 36,524 | 19,580
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss | (9,399) | (11,088)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value | 122,326 | 116,598
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 | 905,990 | 876,620
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain | 138,661 | 118,476
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss | (4,619) | (9,540)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value | 1,040,032 | 985,556
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 | 1,072,323 | 998,767
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain | 3,529 | 5,727
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss | (122,570) | (109,231)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value | 953,282 | 895,263
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 | 1,981,991 |
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain | 257,503 |
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss | (77,049) |
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value | 2,162,445 |
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 | 826,695 | 827,600
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain | 1,375 | 2,432
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss | (67,867) | (63,021)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value | 760,203 | 767,011
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 | 337,136 | 337,500
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain | 88,786 | 71,819
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss | (228) | (642)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value | 425,694 | 408,677
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 | 385,415 | 346,672
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 | 385,415 | 346,672
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 | 432,745 | 412,482
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain | 167,342 | 169,825
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss | (8,954) | (7,109)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value | 591,133 | 575,198
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 |  | 1,924,254
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain |  | 244,076
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss |  | (70,772)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value |  | 2,097,558
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 | 6,048,891 | 5,789,730
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain | 991,347 | 886,648
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss | (295,120) | (281,582)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value | $ 6,745,118 | $ 6,394,796

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