Preneed Activities Schedule of Available-for-sale Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-Sale and Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss	$ 4,016,091
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain	404,993
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss	(394,728)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value	4,026,356
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		$ 4,013,319
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain		371,897
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss		(521,853)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value		3,863,363
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	45,239	45,084
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain	37	22
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss	(1,749)	(2,033)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value	43,527	43,073
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	33,130	30,200
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	33,130	30,200
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	175	175
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	(18)	(18)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value	157	157
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	5,485	1,420
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain	23	0
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss	(111)	(101)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value	5,397	1,319
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	293	294
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	(51)	(52)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value	242	242
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	4,196	4,144
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	(2,062)	(2,340)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value	2,134	1,804
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	1,765,274	1,707,240
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain	293,953	283,423
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss	(155,781)	(208,523)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value	1,903,446	1,782,140
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	50,325	47,821
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain	14,876	11,765
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss	(6,962)	(11,117)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value	58,239	48,469
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	97,626	123,440
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain	12,049	10,561
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss	(10,055)	(19,009)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value	99,620	114,992
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	916,174	917,686
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain	82,279	64,895
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss	(77,552)	(112,374)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value	920,901	870,207
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	1,098,174	1,135,815
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain	1,776	1,231
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss	(140,387)	(166,286)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value	959,563	970,760
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	1,758,001
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain	222,318
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss	(81,828)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value	1,898,491
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	733,119	730,940
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain	0	2
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss	(76,465)	(89,246)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value	656,654	641,696
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	306,512	309,893
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain	67,597	40,820
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss	(1,130)	(3,846)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value	372,979	346,867
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	345,577	325,562
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	345,577	325,562
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	372,793	307,275
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain	154,721	179,491
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss	(4,233)	(1,091)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value	523,281	485,675
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		1,673,670
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain		220,313
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss		(94,183)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value		1,799,800
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	5,774,092	5,686,989
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain	627,311	592,210
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss	(476,556)	(616,036)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value	$ 5,924,847	$ 5,663,163