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Preneed Trust Investments (Preneed cemetery trust investment security transactions) (Details) - USD ($)
$ in Thousands
12 Months Ended
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 Cemetery Trust Investments      
Schedule of Trading Securities and Other Trading Assets [Line Items]      
Impairment charge for other-than-temporary declines in fair value 700 200  
Investment income 2,562 2,840 3,349
Realized gains 2,952 5,712 3,018
Realized losses (3,671) (2,789) (763)
Expenses and taxes (1,790) (1,716) (2,934)
Increase in deferred preneed cemetery receipts held in trust $ (53) $ (4,047) $ (2,670)