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Trust Investments (Unrealized losses on preneed funeral trust investments) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Preneed Funeral Trust Investments
Gain (Loss) on Securities [Line Items]
In Loss Position Less than 12 months	$ 3,494	$ 6,089
Unrealized Losses, In Loss Position Less than12 months	(238)	(413)
In Loss Position Greater than 12 months	4,918	5,595
Unrealized Losses, In Loss Position Greater than12 months	(1,159)	(780)
Total	8,412	11,684
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	(1,397)	(1,193)
Preneed Cemetery Trust Investments
Gain (Loss) on Securities [Line Items]
In Loss Position Less than 12 months	4,010	5,771
Unrealized Losses, In Loss Position Less than12 months	(274)	(374)
In Loss Position Greater than 12 months	5,074	5,680
Unrealized Losses, In Loss Position Greater than12 months	(1,281)	(796)
Total	9,084	11,451
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	(1,555)	(1,170)
Perpetual Care Trust Investments
Gain (Loss) on Securities [Line Items]
In Loss Position Less than 12 months	3,462	4,214
Unrealized Losses, In Loss Position Less than12 months	(308)	(328)
In Loss Position Greater than 12 months	3,867	4,054
Unrealized Losses, In Loss Position Greater than12 months	(990)	(558)
Total	7,329	8,268
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	(1,298)	(886)
Corporate debt | Preneed Funeral Trust Investments
Gain (Loss) on Securities [Line Items]
In Loss Position Less than 12 months	2,225	274
Unrealized Losses, In Loss Position Less than12 months	(55)	(43)
In Loss Position Greater than 12 months	337	723
Unrealized Losses, In Loss Position Greater than12 months	(579)	(189)
Total	2,562	997
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	(634)	(232)
Corporate debt | Preneed Cemetery Trust Investments
Gain (Loss) on Securities [Line Items]
In Loss Position Less than 12 months	2,517	268
Unrealized Losses, In Loss Position Less than12 months	(57)	(42)
In Loss Position Greater than 12 months	371	758
Unrealized Losses, In Loss Position Greater than12 months	(645)	(201)
Total	2,888	1,026
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	(702)	(243)
Corporate debt | Perpetual Care Trust Investments
Gain (Loss) on Securities [Line Items]
In Loss Position Less than 12 months	1,728	168
Unrealized Losses, In Loss Position Less than12 months	(43)	(26)
In Loss Position Greater than 12 months	312	549
Unrealized Losses, In Loss Position Greater than12 months	(539)	(149)
Total	2,040	717
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	(582)	(175)
Preferred stock | Preneed Funeral Trust Investments
Gain (Loss) on Securities [Line Items]
In Loss Position Less than 12 months	763	1,403
Unrealized Losses, In Loss Position Less than12 months	(96)	(172)
In Loss Position Greater than 12 months	528	4,433
Unrealized Losses, In Loss Position Greater than12 months	(214)	(474)
Total	1,291	5,836
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	(310)	(646)
Preferred stock | Preneed Cemetery Trust Investments
Gain (Loss) on Securities [Line Items]
In Loss Position Less than 12 months	784	1,368
Unrealized Losses, In Loss Position Less than12 months	(99)	(168)
In Loss Position Greater than 12 months	542	4,520
Unrealized Losses, In Loss Position Greater than12 months	(259)	(481)
Total	1,326	5,888
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	(358)	(649)
Preferred stock | Perpetual Care Trust Investments
Gain (Loss) on Securities [Line Items]
In Loss Position Less than 12 months	592	1,057
Unrealized Losses, In Loss Position Less than12 months	(74)	(196)
In Loss Position Greater than 12 months	410	3,253
Unrealized Losses, In Loss Position Greater than12 months	(166)	(338)
Total	1,002	4,310
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	(240)	(534)
Mortgage-backed securities | Preneed Funeral Trust Investments
Gain (Loss) on Securities [Line Items]
In Loss Position Less than 12 months	506	4,412
Unrealized Losses, In Loss Position Less than12 months	(87)	(198)
In Loss Position Greater than 12 months	3,942	0
Unrealized Losses, In Loss Position Greater than12 months	(211)	0
Total	4,448	4,412
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	(298)	(198)
Mortgage-backed securities | Preneed Cemetery Trust Investments
Gain (Loss) on Securities [Line Items]
In Loss Position Less than 12 months	709	4,135
Unrealized Losses, In Loss Position Less than12 months	(118)	(164)
In Loss Position Greater than 12 months	4,049	0
Unrealized Losses, In Loss Position Greater than12 months	(218)	0
Total	4,758	4,135
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	(336)	(164)
Mortgage-backed securities | Perpetual Care Trust Investments
Gain (Loss) on Securities [Line Items]
In Loss Position Less than 12 months	1,142
Unrealized Losses, In Loss Position Less than12 months	(191)
In Loss Position Greater than 12 months	3,060
Unrealized Losses, In Loss Position Greater than12 months	(164)
Total	4,202
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	(355)
Collateralized Mortgage Backed Securities [Member] | Preneed Funeral Trust Investments
Gain (Loss) on Securities [Line Items]
In Loss Position Less than 12 months	0	0
Unrealized Losses, In Loss Position Less than12 months	0	0
In Loss Position Greater than 12 months	111	439
Unrealized Losses, In Loss Position Greater than12 months	(155)	(117)
Total	111	439
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	(155)	(117)
Collateralized Mortgage Backed Securities [Member] | Preneed Cemetery Trust Investments
Gain (Loss) on Securities [Line Items]
In Loss Position Less than 12 months	0	0
Unrealized Losses, In Loss Position Less than12 months	0	0
In Loss Position Greater than 12 months	112	402
Unrealized Losses, In Loss Position Greater than12 months	(159)	(114)
Total	112	402
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	(159)	(114)
Collateralized Mortgage Backed Securities [Member] | Perpetual Care Trust Investments
Gain (Loss) on Securities [Line Items]
In Loss Position Less than 12 months	0	0
Unrealized Losses, In Loss Position Less than12 months	0	0
In Loss Position Greater than 12 months	85	252
Unrealized Losses, In Loss Position Greater than12 months	(121)	(71)
Total	85	252
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	$ (121)	$ (71)

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