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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
6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Dec. 31, 2015
Schedule of Trading Securities and Other Trading Assets [Line Items]      
Cemetary perpetual care trust investments $ 42,505   $ 43,127
Fair market value as a percentage of cost 89.50%   88.20%
Impairment charge, other than temporary decline in fair value of investments $ 400 $ 500  
Trust Securities [Member]      
Schedule of Trading Securities and Other Trading Assets [Line Items]      
Cost 46,929   $ 48,453
Unrealized Gains 1,068   470
Unrealized Losses (5,998)   (6,169)
Fair Market Value 41,999   42,754
Accrued Investment Income [Member]      
Schedule of Trading Securities and Other Trading Assets [Line Items]      
Cost 506   373
Fair Market Value 506   373
Fair Value, Inputs, Level 1 [Member] | Cash and Money Market Accounts [Member]      
Schedule of Trading Securities and Other Trading Assets [Line Items]      
Cost 1,537   5,472
Unrealized Gains 0   0
Unrealized Losses 0   0
Fair Market Value 1,537   5,472
Fair Value, Inputs, Level 1 [Member] | Common Stock [Member]      
Schedule of Trading Securities and Other Trading Assets [Line Items]      
Cost 8,228   11,945
Unrealized Gains 131   393
Unrealized Losses (2,729)   (1,939)
Fair Market Value 5,630   10,399
Fair Value, Inputs, Level 2 [Member] | Municipal Bonds [Member]      
Schedule of Trading Securities and Other Trading Assets [Line Items]      
Cost 447   325
Unrealized Gains 0   0
Unrealized Losses (72)   (45)
Fair Market Value 375   280
Fair Value, Inputs, Level 2 [Member] | Foreign Government Debt Securities [Member]      
Schedule of Trading Securities and Other Trading Assets [Line Items]      
Cost 5,755   3,232
Unrealized Gains 85   0
Unrealized Losses (571)   (480)
Fair Market Value 5,269   2,752
Fair Value, Inputs, Level 2 [Member] | Corporate Debt [Member]      
Schedule of Trading Securities and Other Trading Assets [Line Items]      
Cost 18,646   16,216
Unrealized Gains 795   57
Unrealized Losses (1,702)   (3,094)
Fair Market Value 17,739   13,179
Fair Value, Inputs, Level 2 [Member] | Preferred Stock [Member]      
Schedule of Trading Securities and Other Trading Assets [Line Items]      
Cost 11,450   11,263
Unrealized Gains 5   20
Unrealized Losses (924)   (611)
Fair Market Value 10,531   $ 10,672
Fair Value, Inputs, Level 2 [Member] | Fixed Income [Member]      
Schedule of Trading Securities and Other Trading Assets [Line Items]      
Cost 866    
Unrealized Gains 52    
Unrealized Losses 0    
Fair Market Value $ 918