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Cemetery Perpetual Care Trust Investments (Cost and fair market values associated with the trust investments held in perpetual care trust funds) (Details) - Perpetual Care Trust Invesments [Member] - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Dec. 31, 2015
Dec. 31, 2014
Schedule of Trading Securities and Other Trading Assets [Line Items]        
Cost $ 695      
Unrealized Gains 34      
Unrealized Losses 0      
Fair Market Value 729      
Cemetary perpetual care trust investments $ 41,341   $ 43,127 $ 43,127
Fair market value as a percentage of cost 86.90%     88.20%
Impairment charge, other than temporary decline in fair value of investments $ 400 $ 500    
Cash and Money Market Accounts [Member]        
Schedule of Trading Securities and Other Trading Assets [Line Items]        
Cost 3,085     $ 5,472
Unrealized Gains 0     0
Unrealized Losses 0     0
Fair Market Value 3,085     5,472
Municipal Bonds [Member]        
Schedule of Trading Securities and Other Trading Assets [Line Items]        
Cost 327     325
Unrealized Gains 0     0
Unrealized Losses (60)     (45)
Fair Market Value 267     280
Foreign Government Debt Securities [Member]        
Schedule of Trading Securities and Other Trading Assets [Line Items]        
Cost 4,810     3,232
Unrealized Gains 66     0
Unrealized Losses (633)     (480)
Fair Market Value 4,243     2,752
Corporate Debt [Member]        
Schedule of Trading Securities and Other Trading Assets [Line Items]        
Cost 17,495     16,216
Unrealized Gains 422     57
Unrealized Losses (2,354)     (3,094)
Fair Market Value 15,563     13,179
Preferred Stock [Member]        
Schedule of Trading Securities and Other Trading Assets [Line Items]        
Cost 11,341     11,263
Unrealized Gains 4     20
Unrealized Losses (988)     (611)
Fair Market Value 10,357     10,672
Common Stock        
Schedule of Trading Securities and Other Trading Assets [Line Items]        
Cost 9,151     11,945
Unrealized Gains 96     393
Unrealized Losses (2,722)     (1,939)
Fair Market Value 6,525     10,399
Trust Securities [Member]        
Schedule of Trading Securities and Other Trading Assets [Line Items]        
Cost 46,904     48,453
Unrealized Gains 622     470
Unrealized Losses (6,757)     (6,169)
Fair Market Value 40,769     42,754
Accrued Investment Income [Member]        
Schedule of Trading Securities and Other Trading Assets [Line Items]        
Cost 572     373
Fair Market Value $ 572     $ 373