Cemetery Perpetual Care Trust Investments (Perpetual care trust investment security transactions recorded in Cemetery revenue) (Details) - Perpetual Care Trust Invesments [Member] - Cemetery Revenue [Member] - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Schedule of Trading Securities and Other Trading Assets [Line Items]
Investment income	$ 1,539	$ 1,523	$ 4,831	$ 4,503
Realized gain, net	(283)	14	(891)	(444)
Total	$ 1,256	$ 1,537	$ 3,940	$ 4,059