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Cemetery Perpetual Care Trusts Schedule of Unrealized Loss on Investments (Details) - USD ($) $ in Thousands | Dec. 31, 2016 | Dec. 31, 2015
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Cemetery Perpetual Care [Member] |  |
Schedule of unrealized loss on investments [Line Items] |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value | $ 591,618 | $ 660,175
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses | (16,270) | (28,203)
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value | 411,564 | 350,308
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses | (34,277) | (60,380)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 1,003,182 | 1,010,483
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses | (50,547) | (88,583)
US Treasury Securities [Member] | Cemetery Perpetual Care [Member] |  |
Schedule of unrealized loss on investments [Line Items] |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value |  | 364
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses |  | (6)
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value |  | 35
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses |  | (1)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value |  | 399
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses |  | (7)
Foreign Government Debt Securities [Member] | Cemetery Perpetual Care [Member] |  |
Schedule of unrealized loss on investments [Line Items] |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value | 66 | 1,569
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses | (1) | (60)
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value | 1,961 | 1,371
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses | (113) | (102)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 2,027 | 2,940
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses | (114) | (162)
Corporate Debt Securities [Member] | Cemetery Perpetual Care [Member] |  |
Schedule of unrealized loss on investments [Line Items] |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value | 397 | 4,693
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses | (7) | (134)
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value | 1,866 | 4,147
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses | (94) | (150)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 2,263 | 8,840
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses | (101) | (284)
Residential Mortgage Backed Securities [Member] | Cemetery Perpetual Care [Member] |  |
Schedule of unrealized loss on investments [Line Items] |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value | 303 | 303
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses | (1) | (3)
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value | 0 | 117
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses | 0 | (6)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 303 | 420
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses | (1) | (9)
Asset-backed Securities [Member] | Cemetery Perpetual Care [Member] |  |
Schedule of unrealized loss on investments [Line Items] |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value | 28 | 146
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses | (22) | (12)
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value | 101 | 360
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses | (6) | (19)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 129 | 506
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses | (28) | (31)
Preferred Stock securities [Member] | Cemetery Perpetual Care [Member] |  |
Schedule of unrealized loss on investments [Line Items] |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value | 846 | 4,029
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses | (36) | (159)
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value | 417 | 0
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses | (81) | 0
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 1,263 | 4,029
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses | (117) | (159)
US Common Stock Securities [Member] |  |
Schedule of unrealized loss on investments [Line Items] |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value |  | 198,755
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses |  | (26,038)
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value |  | 21,355
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses |  | (5,999)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value |  | 220,110
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses |  | (32,037)
US Common Stock Securities [Member] | Cemetery Perpetual Care [Member] |  |
Schedule of unrealized loss on investments [Line Items] |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value | 34,844 | 81,564
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses | (1,339) | (7,793)
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value | 12,974 | 14,900
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses | (998) | (3,105)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 47,818 | 96,464
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses | (2,337) | (10,898)
Canada Common Stock Securities [Member] |  |
Schedule of unrealized loss on investments [Line Items] |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value |  | 473
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses |  | (6)
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value |  | 1,430
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses |  | (885)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value |  | 1,903
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses |  | (891)
Canada Common Stock Securities [Member] | Cemetery Perpetual Care [Member] |  |
Schedule of unrealized loss on investments [Line Items] |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value | 78 | 622
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses | (47) | (31)
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value | 558 | 1,026
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses | (61) | (575)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 636 | 1,648
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses | (108) | (606)
Other International Common Stock Securities [Member] |  |
Schedule of unrealized loss on investments [Line Items] |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value |  | 15,560
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses |  | (2,507)
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value |  | 9,412
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses |  | (3,292)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value |  | 24,972
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses |  | (5,799)
Other International Common Stock Securities [Member] | Cemetery Perpetual Care [Member] |  |
Schedule of unrealized loss on investments [Line Items] |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value | 4,177 | 8,735
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses | (508) | (941)
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value | 5,715 | 2,347
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses | (1,728) | (1,449)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 9,892 | 11,082
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses | (2,236) | (2,390)
Equity Funds [Member] |  |
Schedule of unrealized loss on investments [Line Items] |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value |  | 207,253
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses |  | (25,991)
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value |  | 86,720
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses |  | (23,651)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value |  | 293,973
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses |  | (49,642)
Equity Funds [Member] | Cemetery Perpetual Care [Member] |  |
Schedule of unrealized loss on investments [Line Items] |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value | 877 | 4,580
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses | (17) | (606)
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value | 2,899 | 1,258
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses | (395) | (1,244)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 3,776 | 5,838
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses | (412) | (1,850)
Fixed Income Funds [Member] |  |
Schedule of unrealized loss on investments [Line Items] |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value |  | 139,684
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses |  | (6,323)
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value |  | 44,550
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses |  | (12,204)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value |  | 184,234
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses |  | (18,527)
Fixed Income Funds [Member] | Cemetery Perpetual Care [Member] |  |
Schedule of unrealized loss on investments [Line Items] |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value | 263,231 | 519,993
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses | (4,678) | (18,205)
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value | 348,623 | 294,309
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses | (24,319) | (45,708)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 611,854 | 814,302
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses | (28,997) | (63,913)
Private Equity Funds [Member] |  |
Schedule of unrealized loss on investments [Line Items] |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value |  | 0
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses |  | 0
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value |  | 9,526
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses |  | (4,502)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value |  | 9,526
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses |  | (4,502)
Private Equity Funds [Member] | Cemetery Perpetual Care [Member] |  |
Schedule of unrealized loss on investments [Line Items] |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value | 21,426 | 13,139
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses | (268) | (75)
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value | 33,519 | 30,438
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses | (6,442) | (8,021)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 54,945 | 43,577
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses | (6,710) | (8,096)
Other Investments [Member] | Cemetery Perpetual Care [Member] |  |
Schedule of unrealized loss on investments [Line Items] |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value |  | 33,577
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses |  | 253
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value |  | 30,438
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses |  | 8,021
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value |  | 64,015
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses |  | 8,274
Fixed Income Commingled funds [Member] | Cemetery Perpetual Care [Member] |  |
Schedule of unrealized loss on investments [Line Items] |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value | 265,345 | 20,438
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses | 9,346 | 178
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value | 2,931 | 0
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses | 40 | 0
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 268,276 | 20,438
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses | 9,386 | 178
Estimate of Fair Value Measurement [Member] | Cemetery Perpetual Care [Member] |  |
Schedule of unrealized loss on investments [Line Items] |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value | 304,847 | 626,598
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses | 6,656 | 27,950
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value | 375,114 | 319,870
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses | 27,795 | 52,359
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 679,961 | 946,468
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses | 34,451 | $ 80,309
Reported At Net Asset Value [Member] | Cemetery Perpetual Care [Member] |  |
Schedule of unrealized loss on investments [Line Items] |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value | 286,771 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses | 9,614 |
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value | 36,450 |
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses | 6,482 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 323,221 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses | $ 16,096 |

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- Definition For all investments in an unrealized loss position, including those for which other-than-temporary impairments have not been recognized in earnings (including investments for which a portion of an other-than-temporary impairment has been recognized in other comprehensive income), a tabular disclosure of the aggregate related fair value of investments with unrealized losses and the aggregate amount of unrealized losses (that is, the amount by which amortized cost basis exceeds fair value). + References No definition available. + Details
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- Definition Amount of accumulated unrealized loss on investments in debt and equity securities classified as available-for-sale that have been in a continuous loss position for twelve months or longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27290-111563 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27337-111563 + Details
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- Definition Amount of accumulated unrealized loss on investments in debt and equity securities classified as available-for-sale in a continuous loss position. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27337-111563 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27290-111563 + Details
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- Definition Amount of accumulated unrealized loss on investments in debt and equity securities classified as available-for-sale that have been in a continuous loss position for less than twelve months. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27290-111563 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27337-111563 + Details
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