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Preneed Trust Investments (Preneed funeral trust investment security transactions) (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2015
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Schedule of Trading Securities and Other Trading Assets [Line Items]        
Impairment charge for other-than-temporary declines in fair value   $ 1,800 $ 400  
Investment income   5,315 4,713 $ 4,063
Increase in deferred preneed cemetery receipts held in trust   (5,751) (5,825) (5,574)
Preneed Funeral Trust Investments        
Schedule of Trading Securities and Other Trading Assets [Line Items]        
Impairment charge for other-than-temporary declines in fair value $ 600   100  
Investment income   2,819 3,065 3,190
Realized gains   3,931 7,184 7,957
Realized losses   (3,979) (2,313) (5,743)
Expenses and taxes   (988) (1,470) (1,669)
Increase in deferred preneed cemetery receipts held in trust   $ (1,783) $ (6,466) $ (3,735)