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Preneed Trust Investments (Unrealized losses on preneed funeral trust investments) (Details) - Preneed Funeral Trust Investments [Member] - USD ($) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2017 | Sep. 30, 2016 | Dec. 31, 2016
Gain (Loss) on Investments [Line Items] |  |  |  |  |
Impairment charge, other than temporary decline in fair value of investments | $ 0 | $ 100,000 | $ 0 | $ 900,000 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 12,281,000 |  | 12,281,000 |  | $ 17,076,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | (2,710,000) |  | (2,710,000) |  | (772,000)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 12,971,000 |  | 12,971,000 |  | 20,934,000
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | (1,753,000) |  | (1,753,000) |  | (3,944,000)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 25,252,000 |  | 25,252,000 |  | 38,010,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss | (4,463,000) |  | (4,463,000) |  | (4,716,000)
US States and Political Subdivisions Debt Securities [Member] |  |  |  |  |
Gain (Loss) on Investments [Line Items] |  |  |  |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 837,000 |  | 837,000 |  | 834,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | (4,000) |  | (4,000) |  | (10,000)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 0 |  | 0 |  | 0
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 0 |  | 0 |  | 0
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 837,000 |  | 837,000 |  | 834,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss | (4,000) |  | (4,000) |  | (10,000)
Municipal Bonds [Member] |  |  |  |  |
Gain (Loss) on Investments [Line Items] |  |  |  |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value |  |  |  |  | 244,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss |  |  |  |  | (5,000)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value |  |  |  |  | 0
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss |  |  |  |  | 0
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value |  |  |  |  | 244,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss |  |  |  |  | (5,000)
Foreign Debt [Member] |  |  |  |  |
Gain (Loss) on Investments [Line Items] |  |  |  |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 170,000 |  | 170,000 |  | 2,654,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | (4,000) |  | (4,000) |  | (186,000)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 1,628,000 |  | 1,628,000 |  | 2,905,000
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | (163,000) |  | (163,000) |  | (490,000)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 1,798,000 |  | 1,798,000 |  | 5,559,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss | (167,000) |  | (167,000) |  | (676,000)
Corporate Debt [Member] |  |  |  |  |
Gain (Loss) on Investments [Line Items] |  |  |  |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 2,273,000 |  | 2,273,000 |  | 6,977,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | (430,000) |  | (430,000) |  | (215,000)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 609,000 |  | 609,000 |  | 2,234,000
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | (141,000) |  | (141,000) |  | (919,000)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 2,882,000 |  | 2,882,000 |  | 9,211,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss | (571,000) |  | (571,000) |  | (1,134,000)
Preferred Stock [Member] |  |  |  |  |
Gain (Loss) on Investments [Line Items] |  |  |  |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 191,000 |  | 191,000 |  | 3,420,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | (6,000) |  | (6,000) |  | (128,000)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 8,183,000 |  | 8,183,000 |  | 11,750,000
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | (520,000) |  | (520,000) |  | (842,000)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 8,374,000 |  | 8,374,000 |  | 15,170,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss | (526,000) |  | (526,000) |  | (970,000)
Collateralized Mortgage Backed Securities [Member] |  |  |  |  |
Gain (Loss) on Investments [Line Items] |  |  |  |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 234,000 |  | 234,000 |  | 55,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | (24,000) |  | (24,000) |  | (5,000)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 9,000 |  | 9,000 |  | 11,000
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 0 |  | 0 |  | (1,000)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 243,000 |  | 243,000 |  | 66,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss | (24,000) |  | (24,000) |  | (6,000)
Equity [Member] |  |  |  |  |
Gain (Loss) on Investments [Line Items] |  |  |  |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 8,497,000 |  | 8,497,000 |  | 2,795,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | (2,241,000) |  | (2,241,000) |  | (216,000)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 1,934,000 |  | 1,934,000 |  | 3,390,000
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | (892,000) |  | (892,000) |  | (1,634,000)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 10,431,000 |  | 10,431,000 |  | 6,185,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss | (3,133,000) |  | (3,133,000) |  | (1,850,000)
Fixed Income [Member] |  |  |  |  |
Gain (Loss) on Investments [Line Items] |  |  |  |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 79,000 |  | 79,000 |  | 97,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | (1,000) |  | (1,000) |  | (7,000)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 608,000 |  | 608,000 |  | 644,000
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | (37,000) |  | (37,000) |  | (58,000)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 687,000 |  | 687,000 |  | 741,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss | $ (38,000) |  | $ (38,000) |  | $ (65,000)

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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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