Cemetery Perpetual Care Trusts Level 3 Activities (Details) - Cemetery Perpetual Care [Member] - Other Investments [Member] - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair market value, beginning balance		$ 1,902	$ 1,556	$ 1,599
Net unrealized (losses) gains included in Accumulated other comprehensive income(1)	[1]	(15)	346	(26)
Sales		0	0	(17)
Fair market value, ending balance		$ 1,887	$ 1,902	$ 1,556

[1] All unrealized (losses) gains recognized in Accumulated other comprehensive income for our cemetery perpetual care trust investments are offset by a corresponding reclassification in Accumulated other comprehensive income to Care trusts’ corpus. See Note 6 for further information related to our Care trusts’ corpus.