Preneed Activities Long-term Receivable and Investment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Long-term receivable and investment components [Line Items]
Allowance for cancellation	$ (20,727)	$ (19,204)
Preneed receivables, net and trust investments	6,015,323	5,345,720	$ 4,789,562	$ 4,271,392
PreneedReceivables	1,243,781	1,069,965
Cemetery perpetual care trust investments	(1,996,898)	(1,820,489)
Preneed trust investments	4,771,542	4,275,755
Preneed receivables, net and trust investments, excluding allowance for cancellation	6,015,323	5,345,720
Insurance-backed fixed income securities and other [Line Items]	231,589	245,056
Preneed Accounts Receivable Gross	1,287,722	1,123,155
Deferred Discounts, Finance Charges and Interest Included in Receivables	(23,214)	(33,986)
Accounts Receivable, before Allowance for Credit Loss, Noncurrent	1,264,508	1,089,169
Allowance for Doubtful Accounts, Premiums and Other Receivables	19,204
Financing Receivable, Allowance for Credit Loss, Foreign Currency Translation	(3)
Financing Receivable, Purchased with Credit Deterioration, Allowance for Credit Loss at Acquisition Date	0
Accounts Receivable, Allowance for Credit Loss, Writeoff	3,566
Accounts Receivable, Allowance for Credit Loss, Period Increase (Decrease)	(5,086)
Funeral [Member]
Long-term receivable and investment components [Line Items]
Allowance for cancellation	(12,722)	(10,940)
PreneedReceivables	137,423	118,938
Preneed Accounts Receivable Gross	162,183	143,896
Deferred Discounts, Finance Charges and Interest Included in Receivables	(12,038)	(14,018)
Accounts Receivable, before Allowance for Credit Loss, Noncurrent	150,145	129,878
Allowance for Doubtful Accounts, Premiums and Other Receivables	(10,940)
Financing Receivable, Allowance for Credit Loss, Foreign Currency Translation	0
Financing Receivable, Purchased with Credit Deterioration, Allowance for Credit Loss at Acquisition Date	0
Accounts Receivable, Allowance for Credit Loss, Writeoff	3,071
Accounts Receivable, Allowance for Credit Loss, Period Increase (Decrease)	(4,853)
Cemetery [Member]
Long-term receivable and investment components [Line Items]
Allowance for cancellation	(8,005)	(8,264)
PreneedReceivables	1,106,358	951,027
Preneed Accounts Receivable Gross	1,125,539	979,259
Deferred Discounts, Finance Charges and Interest Included in Receivables	(11,176)	(19,968)
Accounts Receivable, before Allowance for Credit Loss, Noncurrent	1,114,363	$ 959,291
Allowance for Doubtful Accounts, Premiums and Other Receivables	(8,264)
Financing Receivable, Allowance for Credit Loss, Foreign Currency Translation	(3)
Financing Receivable, Purchased with Credit Deterioration, Allowance for Credit Loss at Acquisition Date	0
Accounts Receivable, Allowance for Credit Loss, Writeoff	495
Accounts Receivable, Allowance for Credit Loss, Period Increase (Decrease)	$ (233)