Preneed Activities Schedule of Available-for-sale Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Debt Securities, Available-for-sale [Line Items]
Available-for-sale Securities, Gross Unrealized Losses	$ (141,210)
Available-for-sale Securities, Fair Value	4,779,083
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	798,935
Debt Securities, Available-for-sale, Amortized Cost	4,121,358
Estimate of Fair Value Measurement [Member]
Debt Securities, Available-for-sale [Line Items]
Available-for-sale Securities, Gross Unrealized Losses		$ (210,810)
Available-for-sale Securities, Fair Value		4,297,238
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax		642,572
Debt Securities, Available-for-sale, Amortized Cost		3,865,476
Fair Value, Inputs, Level 2 [Member] | US Treasury Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Available-for-sale Securities, Gross Unrealized Losses	(849)	(1,376)
Available-for-sale Securities, Fair Value	43,028	44,414
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	178	145
Debt Securities, Available-for-sale, Amortized Cost	43,699	45,645
Fair Value, Inputs, Level 2 [Member] | Debt Security, Government, Non-US [Member]
Debt Securities, Available-for-sale [Line Items]
Available-for-sale Securities, Gross Unrealized Losses	0	0
Available-for-sale Securities, Fair Value	25,979	31,896
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	0	0
Debt Securities, Available-for-sale, Amortized Cost	25,979	31,896
Fair Value, Inputs, Level 2 [Member] | Corporate Debt Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Available-for-sale Securities, Gross Unrealized Losses	(11)	(17)
Available-for-sale Securities, Fair Value	10,402	10,763
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	326	138
Debt Securities, Available-for-sale, Amortized Cost	10,087	10,642
Fair Value, Inputs, Level 2 [Member] | Residential Mortgage Backed Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Available-for-sale Securities, Gross Unrealized Losses	(49)	(104)
Available-for-sale Securities, Fair Value	3,801	5,377
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	39	29
Debt Securities, Available-for-sale, Amortized Cost	3,811	5,452
Fair Value, Inputs, Level 2 [Member] | Asset-backed Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Available-for-sale Securities, Gross Unrealized Losses	(47)	(51)
Available-for-sale Securities, Fair Value	243	240
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	0	0
Debt Securities, Available-for-sale, Amortized Cost	290	291
Fair Value, Inputs, Level 2 [Member] | Preferred Stock securities [Member]
Debt Securities, Available-for-sale [Line Items]
Available-for-sale Securities, Gross Unrealized Losses	(25)	(97)
Available-for-sale Securities, Fair Value	8,964	320
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	930	0
Debt Securities, Available-for-sale, Amortized Cost	8,059	417
Fair Value, Inputs, Level 1 [Member] | US Common Stock Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Available-for-sale Securities, Gross Unrealized Losses	(68,404)	(78,630)
Available-for-sale Securities, Fair Value	2,437,145	2,144,515
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	617,695	478,226
Debt Securities, Available-for-sale, Amortized Cost	1,887,854	1,744,919
Fair Value, Inputs, Level 1 [Member] | Canada Common Stock Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Available-for-sale Securities, Gross Unrealized Losses	(1,160)	(676)
Available-for-sale Securities, Fair Value	60,366	62,296
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	20,164	20,251
Debt Securities, Available-for-sale, Amortized Cost	41,362	42,721
Fair Value, Inputs, Level 1 [Member] | Other International Common Stock Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Available-for-sale Securities, Gross Unrealized Losses	(10,382)	(11,088)
Available-for-sale Securities, Fair Value	144,637	116,598
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	34,414	19,580
Debt Securities, Available-for-sale, Amortized Cost	120,605	108,106
Fair Value, Inputs, Level 1 [Member] | Equity Funds [Member]
Debt Securities, Available-for-sale [Line Items]
Available-for-sale Securities, Gross Unrealized Losses	(13,892)	(9,540)
Available-for-sale Securities, Fair Value	1,058,104	985,556
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	121,006	118,476
Debt Securities, Available-for-sale, Amortized Cost	950,990	876,620
Fair Value, Inputs, Level 1 [Member] | Fixed Income Funds [Member]
Debt Securities, Available-for-sale [Line Items]
Available-for-sale Securities, Gross Unrealized Losses	(46,391)	(109,231)
Available-for-sale Securities, Fair Value	986,414	895,263
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	4,183	5,727
Debt Securities, Available-for-sale, Amortized Cost	1,028,622	998,767
Reported Value Measurement [Member]
Debt Securities, Available-for-sale [Line Items]
Available-for-sale Securities, Gross Unrealized Losses	(70,415)
Available-for-sale Securities, Fair Value	2,305,640
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	295,882
Debt Securities, Available-for-sale, Amortized Cost	2,080,173
Reported Value Measurement [Member] | Commingled funds - Fixed inc [Member]
Debt Securities, Available-for-sale [Line Items]
Available-for-sale Securities, Gross Unrealized Losses	(60,646)	(63,021)
Available-for-sale Securities, Fair Value	804,301	767,011
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	2,597	2,432
Debt Securities, Available-for-sale, Amortized Cost	862,350	827,600
Reported Value Measurement [Member] | Commingled funds - Equity [Member]
Debt Securities, Available-for-sale [Line Items]
Available-for-sale Securities, Gross Unrealized Losses	(316)	(642)
Available-for-sale Securities, Fair Value	445,884	408,677
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	99,647	71,819
Debt Securities, Available-for-sale, Amortized Cost	346,553	337,500
Reported Value Measurement [Member] | Money Market Funds [Member]
Debt Securities, Available-for-sale [Line Items]
Available-for-sale Securities, Gross Unrealized Losses	0	0
Available-for-sale Securities, Fair Value	432,821	346,672
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	0	0
Debt Securities, Available-for-sale, Amortized Cost	432,821	346,672
Reported Value Measurement [Member] | Private Equity Funds [Member]
Debt Securities, Available-for-sale [Line Items]
Available-for-sale Securities, Gross Unrealized Losses	(9,453)	(7,109)
Available-for-sale Securities, Fair Value	622,634	575,198
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	193,638	169,825
Debt Securities, Available-for-sale, Amortized Cost	438,449	412,482
Reported Value Measurement [Member] | Reported At Net Asset Value [Member]
Debt Securities, Available-for-sale [Line Items]
Available-for-sale Securities, Gross Unrealized Losses		(70,772)
Available-for-sale Securities, Fair Value		2,097,558
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax		244,076
Debt Securities, Available-for-sale, Amortized Cost		1,924,254
Estimate of Fair Value Measurement [Member]
Debt Securities, Available-for-sale [Line Items]
Available-for-sale Securities, Gross Unrealized Losses	(211,625)	(281,582)
Available-for-sale Securities, Fair Value	7,084,723	6,394,796
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	1,094,817	886,648
Debt Securities, Available-for-sale, Amortized Cost	$ 6,201,531	$ 5,789,730