Preneed Activities Schedule of Available-for-sale Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-Sale and Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss	$ 4,029,504
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain	322,080
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss	(570,957)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value	3,780,627
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		$ 3,801,977
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain		840,484
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss		(96,934)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value		4,545,527
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	49,838	51,002
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain	159	795
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss	(1,480)	(283)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value	48,517	51,514
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	32,889	29,881
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain	17	28
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	32,906	29,909
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	1,362	170
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain	1	6
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss	(99)	(2)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value	1,264	174
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	1,428	1,407
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain	1	58
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss	(61)	(15)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value	1,368	1,450
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	300	274
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain	1	2
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss	(44)	(10)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value	257	266
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	4,341	4,843
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain	0	4
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss	(1,492)	(1,024)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value	2,849	3,823
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	1,723,029	1,648,785
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain	236,461	624,349
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss	(254,580)	(56,092)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value	1,704,910	2,217,042
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	48,097	34,787
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain	11,750	19,617
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss	(14,763)	(898)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value	45,084	53,506
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	149,430	129,486
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain	8,764	42,171
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss	(27,600)	(9,819)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value	130,594	161,838
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	908,801	875,828
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain	55,050	140,893
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss	(130,621)	(10,116)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value	833,230	1,006,605
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	1,109,802	1,025,327
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain	9,875	12,560
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss	(140,217)	(18,675)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value	979,460	1,019,212
Fair Value, Inputs, Level 3 [Member] | Other Investments [Member]
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-Sale and Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss	187	187
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain	1	1
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	188	188
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	1,540,769
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain	307,459
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss	(80,865)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value	1,767,363
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	677,724	662,125
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain	78,464	115,939
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss	(73,699)	(3,171)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value	682,489	774,893
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	234,318	230,926
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain	65,230	161,125
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss	(6,194)	(114)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value	293,354	391,937
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	319,375	408,762
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	319,375	408,762
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	309,352	292,888
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain	163,765	128,197
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss	(972)	(5,353)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value	472,145	415,732
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		1,594,701
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain		405,261
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss		(8,638)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value		1,991,324
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	5,570,273	5,396,678
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain	629,539	1,245,745
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss	(651,822)	(105,572)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value	$ 5,547,990	$ 6,536,851