Trust Investments (Unrealized losses on preneed funeral trust investments) (Details) - Preneed Funeral Trust Investments [Member] - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Gain (Loss) on Securities [Line Items]
In Loss Position Less than 12 months	$ 11,507	$ 6,089
In Loss Position Less than 12 months	(1,273)	(413)
In Loss Position Greater than 12 months	2,006	5,595
In Loss Position Greater than 12 months	(1,621)	(780)
Total	13,513	11,684
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	(2,894)	(1,193)
Foreign debt
Gain (Loss) on Securities [Line Items]
In Loss Position Less than 12 months	2,753	274
In Loss Position Less than 12 months	(302)	(43)
In Loss Position Greater than 12 months	133	723
In Loss Position Greater than 12 months	(781)	(189)
Total	2,886	997
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	(1,083)	(232)
Corporate Debt [Member]
Gain (Loss) on Securities [Line Items]
In Loss Position Less than 12 months	4,038	1,403
In Loss Position Less than 12 months	(327)	(172)
In Loss Position Greater than 12 months	1,298	4,433
In Loss Position Greater than 12 months	(439)	(474)
Total	5,336	5,836
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	(766)	(646)
Preferred stock
Gain (Loss) on Securities [Line Items]
In Loss Position Less than 12 months	4,716	4,412
In Loss Position Less than 12 months	(644)	(198)
In Loss Position Greater than 12 months	438	0
In Loss Position Greater than 12 months	(214)	0
Total	5,154	4,412
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	(858)	(198)
Collateralized Mortgage Backed Securities [Member]
Gain (Loss) on Securities [Line Items]
In Loss Position Less than 12 months	0	0
In Loss Position Less than 12 months	0	0
In Loss Position Greater than 12 months	137	439
In Loss Position Greater than 12 months	(187)	(117)
Total	137	439
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	$ (187)	$ (117)