Cemetery Perpetual Care Trust Investments (Cost and fair market values associated with the trust investments held in perpetual care trust funds) (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2016	Dec. 31, 2015
Schedule of Trading Securities and Other Trading Assets [Line Items]
Impairment charge for other-than-temporary declines in fair value	$ 2,300	$ 1,800
Perpetual Care Trust Invesments
Schedule of Trading Securities and Other Trading Assets [Line Items]
Cemetery perpetual care investments	$ (46,889)	$ (43,127)
Market value as a percentage of cost	99.30%	88.20%
Impairment charge for other-than-temporary declines in fair value	$ 400
Perpetual Care Trust Invesments \| Cash and money market accounts \| Fair Value, Level 1
Schedule of Trading Securities and Other Trading Assets [Line Items]
Cost	6,522	$ 5,472
Unrealized Gains	0	0
Unrealized Losses	0	0
Fair Market Value	6,522	5,472
Perpetual Care Trust Invesments \| Municipal bonds \| Fair Value, Level 2
Schedule of Trading Securities and Other Trading Assets [Line Items]
Cost	365	325
Unrealized Gains	13	0
Unrealized Losses	(3)	(45)
Fair Market Value	375	280
Perpetual Care Trust Invesments \| Foreign debt \| Fair Value, Level 2
Schedule of Trading Securities and Other Trading Assets [Line Items]
Cost	5,100	3,232
Unrealized Gains	99	0
Unrealized Losses	(435)	(480)
Fair Market Value	4,764	2,752
Perpetual Care Trust Invesments \| Corporate debt \| Fair Value, Level 2
Schedule of Trading Securities and Other Trading Assets [Line Items]
Cost	13,715	16,216
Unrealized Gains	966	57
Unrealized Losses	(821)	(3,094)
Fair Market Value	13,860	13,179
Perpetual Care Trust Invesments \| Preferred stock \| Fair Value, Level 2
Schedule of Trading Securities and Other Trading Assets [Line Items]
Cost	11,323	11,263
Unrealized Gains	5	20
Unrealized Losses	(664)	(611)
Fair Market Value	10,664	10,672
Perpetual Care Trust Invesments \| Mortgage-backed securities \| Fair Value, Level 2
Schedule of Trading Securities and Other Trading Assets [Line Items]
Cost	569
Unrealized Gains	223
Unrealized Losses	(3)
Fair Market Value	789
Perpetual Care Trust Invesments \| Common stock \| Fair Value, Level 1
Schedule of Trading Securities and Other Trading Assets [Line Items]
Cost	8,259	11,945
Unrealized Gains	1,382	393
Unrealized Losses	(1,146)	(1,939)
Fair Market Value	8,495	10,399
Perpetual Care Trust Invesments \| Fixed income \| Fair Value, Level 2
Schedule of Trading Securities and Other Trading Assets [Line Items]
Cost	855
Unrealized Gains	76
Unrealized Losses	0
Fair Market Value	931
Perpetual Care Trust Invesments \| Trust securities
Schedule of Trading Securities and Other Trading Assets [Line Items]
Cost	46,708	48,453
Unrealized Gains	2,764	470
Unrealized Losses	(3,072)	(6,169)
Fair Market Value	46,400	42,754
Perpetual Care Trust Invesments \| Accrued investment income
Schedule of Trading Securities and Other Trading Assets [Line Items]
Cost	489	373
Fair Market Value	$ 489	$ 373

Fair market value as a percentage of cost.

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Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

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