Cemetery Perpetual Care Trust Investments (Purchases and sales of investments in perpetual care trusts) (Details) - Perpetual Care Trust Invesments [Member] - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2017 |
Sep. 30, 2016 |
Sep. 30, 2017 |
Sep. 30, 2016 |
|
| Schedule of Trading Securities and Other Trading Assets [Line Items] | ||||
| Purchases | $ (556) | $ (936) | $ (12,430) | $ (12,888) |
| Sales | $ 0 | $ 3,832 | $ 8,390 | $ 11,702 |