Preneed Activities Schedule of Securities (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-Sale and Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss	$ 3,950,676
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain	1,162,108
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss	(127,396)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value	4,985,388
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	47,306	43,699
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain	295	178
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss	(536)	(849)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value	47,065	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	27,303	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	27,303	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	10,441	10,087
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain	390	326
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss	(9)	(11)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value	10,822	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	3,535	3,811
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain	51	39
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss	(32)	(49)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value	3,554	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	280	290
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	(45)	(47)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value	235	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	14,986	8,059
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain	2,680	930
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss	(59)	(25)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value	17,607	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	2,035,533	1,887,854
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain	788,788	617,695
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss	(93,676)	(68,404)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value	2,730,645	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	38,434	41,362
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain	31,241	20,164
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss	(484)	(1,160)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value	69,191	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	171,469	120,605
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain	42,487	34,414
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss	(4,609)	(10,382)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value	209,347	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	941,938	950,990
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain	287,231	121,006
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss	(701)	(13,892)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value	1,228,468	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	659,451	1,028,622
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain	8,945	4,183
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss	(27,245)	(46,391)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value	641,151	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	2,557,351
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain	385,854
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss	(58,007)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value	2,885,198
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	1,319,364	862,350
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain	16,298	2,597
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss	(48,069)	(60,646)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value	1,287,593	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	354,092	346,553
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain	150,439	99,647
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss	(557)	(316)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value	503,974	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	402,531	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	402,531	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	481,364	438,449
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain	219,117	193,638
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss	(9,381)	(9,453)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value	691,100	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	6,508,027	6,201,531
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain	1,547,962	1,094,817
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss	(185,403)	(211,625)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value	$ 7,870,586	$ 7,084,723