Trust Investments (Preneed cemetery trust investment security transactions) (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2022	Mar. 31, 2021
Debt and Equity Securities, FV-NI [Line Items]
Total		$ 0
Preneed Cemetery Trust Investments [Member]
Debt and Equity Securities, FV-NI [Line Items]
Unrealized gains, net	$ 6,877	9,708
Total	0	0
Preneed Cemetery Trust Investments [Member] \| Interest Income and Other, Net [Member]
Debt and Equity Securities, FV-NI [Line Items]
Investment income	491	467
Expenses and taxes	(364)	(327)
Increase (decrease) in deferred preneed cemetery receipts held in trust	(8,964)	(11,422)
Realized gains	2,023	4,092
Realized losses	$ (63)	$ (2,518)

Amount of realized gain on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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