Preneed Trust Investments (Unrealized losses on preneed funeral trust investments) (Details) - Preneed Funeral Trust Investments [Member] - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Gain (Loss) on Investments [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$ 31,962	$ 14,075
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(2,155)	(1,620)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	9,235	13,013
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(2,623)	(1,990)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	41,197	27,088
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	(4,778)	(3,610)
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	497	1,325
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(2)	(15)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	809	0
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(28)	0
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	1,306	1,325
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	(30)	(15)
Foreign Debt [Member]
Gain (Loss) on Investments [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	1,766	159
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(36)	(6)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	1,024	1,608
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(107)	(183)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	2,790	1,767
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	(143)	(189)
Corporate Debt [Member]
Gain (Loss) on Investments [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	8,453	3,770
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(310)	(74)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	457	842
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(206)	(203)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	8,910	4,612
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	(516)	(277)
Preferred Stock [Member]
Gain (Loss) on Investments [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	5,943	50
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(149)	0
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	4,150	8,184
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(375)	(585)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	10,093	8,234
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	(524)	(585)
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	0	221
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	0	(17)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	68	36
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(14)	(10)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	68	257
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	(14)	(27)
Equity [Member]
Gain (Loss) on Investments [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	14,874	8,001
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(1,658)	(1,496)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	2,481	1,728
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(1,864)	(972)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	17,355	9,729
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	(3,522)	(2,468)
Fixed Income [Member]
Gain (Loss) on Investments [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	0	549
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	0	(12)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	246	615
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(29)	(37)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	246	1,164
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	(29)	$ (49)
Insurance [Member]
Gain (Loss) on Investments [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	429
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	0
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	429
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	$ 0

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.

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=82897076&loc=d3e27290-111563

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
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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=82897076&loc=d3e27337-111563

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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-Topic 320
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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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