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Preneed Activities Schedule of Available-for-sale Securities (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-Sale and Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss	$ 3,659,788
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain	832,952
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss	(78,145)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value	4,414,595
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		$ 3,569,675
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain		687,303
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss		(88,603)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value		4,168,375
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	50,019	44,907
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain	1,029	1,566
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss	(333)	(272)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value	50,715	46,201
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	30,035	30,210
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain	34	51
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss	(12)	(157)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value	30,057	30,104
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	497	1,669
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain	8	14
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss	(10)	(8)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value	495	1,675
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	1,374	2,438
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain	72	131
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss	(8)	0
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value	1,438	2,569
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	283	174
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain	3	3
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss	(9)	(5)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value	277	172
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	4,843	358
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain	41	0
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss	(71)	(24)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value	4,813	334
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	1,582,652	1,500,125
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain	562,106	503,757
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss	(60,243)	(54,748)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value	2,084,515	1,949,134
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	47,178	35,016
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain	19,185	10,915
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss	(1,038)	(1,823)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value	65,325	44,108
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	128,095	110,775
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain	50,839	39,837
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss	(6,924)	(1,831)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value	172,010	148,781
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	814,776	821,406
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain	156,109	95,155
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss	(3,378)	(10,437)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value	967,507	906,124
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	999,849	1,022,409
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain	43,524	35,872
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss	(6,119)	(19,298)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value	1,037,254	1,038,983
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	188
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain	2	2
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	189	190
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	1,673,301
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain	249,130
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss	(8,949)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value	1,913,482
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	756,031	657,219
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain	33,977	37,474
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss	(2,429)	(173)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value	787,579	694,520
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	259,790	283,329
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain	103,912	97,704
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss	(6)	0
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value	363,696	381,033
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	368,461	330,745
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	368,461	330,745
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	289,019	217,953
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain	111,241	68,846
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss	(6,514)	(10,284)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value	393,746	276,515
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		1,489,246
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain		204,024
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss		(10,457)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value		1,682,813
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	5,333,089	5,058,921
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain	1,082,082	891,327
Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss	(87,094)	(99,060)
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value	$ 6,328,077	$ 5,851,188

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- Definition

Amortized cost, before allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity) and investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

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Amount of cumulative unrecognized gain on investment in debt security measured at amortized cost (held-to-maturity) and investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

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+ References

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