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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) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2015
Schedule of Trading Securities and Other Trading Assets [Line Items] |  |
Impairment charge for other-than-temporary declines in fair value | $ 2,300 | $ 1,800
Perpetual Care Trust Invesments |  |
Schedule of Trading Securities and Other Trading Assets [Line Items] |  |
Cemetery perpetual care investments | $ (46,889) | $ (43,127)
Market value as a percentage of cost | 99.30% | 88.20%
Impairment charge for other-than-temporary declines in fair value | $ 400 |
Perpetual Care Trust Invesments | Cash and money market accounts | Fair Value, Level 1 |  |
Schedule of Trading Securities and Other Trading Assets [Line Items] |  |
Cost | 6,522 | $ 5,472
Unrealized Gains | 0 | 0
Unrealized Losses | 0 | 0
Fair Market Value | 6,522 | 5,472
Perpetual Care Trust Invesments | Municipal bonds | Fair Value, Level 2 |  |
Schedule of Trading Securities and Other Trading Assets [Line Items] |  |
Cost | 365 | 325
Unrealized Gains | 13 | 0
Unrealized Losses | (3) | (45)
Fair Market Value | 375 | 280
Perpetual Care Trust Invesments | Foreign debt | Fair Value, Level 2 |  |
Schedule of Trading Securities and Other Trading Assets [Line Items] |  |
Cost | 5,100 | 3,232
Unrealized Gains | 99 | 0
Unrealized Losses | (435) | (480)
Fair Market Value | 4,764 | 2,752
Perpetual Care Trust Invesments | Corporate debt | Fair Value, Level 2 |  |
Schedule of Trading Securities and Other Trading Assets [Line Items] |  |
Cost | 13,715 | 16,216
Unrealized Gains | 966 | 57
Unrealized Losses | (821) | (3,094)
Fair Market Value | 13,860 | 13,179
Perpetual Care Trust Invesments | Preferred stock | Fair Value, Level 2 |  |
Schedule of Trading Securities and Other Trading Assets [Line Items] |  |
Cost | 11,323 | 11,263
Unrealized Gains | 5 | 20
Unrealized Losses | (664) | (611)
Fair Market Value | 10,664 | 10,672
Perpetual Care Trust Invesments | Mortgage-backed securities | Fair Value, Level 2 |  |
Schedule of Trading Securities and Other Trading Assets [Line Items] |  |
Cost | 569 |
Unrealized Gains | 223 |
Unrealized Losses | (3) |
Fair Market Value | 789 |
Perpetual Care Trust Invesments | Common stock | Fair Value, Level 1 |  |
Schedule of Trading Securities and Other Trading Assets [Line Items] |  |
Cost | 8,259 | 11,945
Unrealized Gains | 1,382 | 393
Unrealized Losses | (1,146) | (1,939)
Fair Market Value | 8,495 | 10,399
Perpetual Care Trust Invesments | Fixed income | Fair Value, Level 2 |  |
Schedule of Trading Securities and Other Trading Assets [Line Items] |  |
Cost | 855 |
Unrealized Gains | 76 |
Unrealized Losses | 0 |
Fair Market Value | 931 |
Perpetual Care Trust Invesments | Trust securities |  |
Schedule of Trading Securities and Other Trading Assets [Line Items] |  |
Cost | 46,708 | 48,453
Unrealized Gains | 2,764 | 470
Unrealized Losses | (3,072) | (6,169)
Fair Market Value | 46,400 | 42,754
Perpetual Care Trust Invesments | Accrued investment income |  |
Schedule of Trading Securities and Other Trading Assets [Line Items] |  |
Cost | 489 | 373
Fair Market Value | $ 489 | $ 373

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- Definition Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 25 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=65884222&loc=d3e22054-111558 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (aa) -URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27232-111563 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=66010992&loc=d3e26610-111562 + Details
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