Cemetery Perpetual Care Trust Investments (Unrealized losses on perpetual care trust investments) (Details) - Perpetual Care Trust Invesments [Member] - USD ($) $ in Thousands	3 Months Ended
Jun. 30, 2016	Jun. 30, 2017	Dec. 31, 2016
Gain (Loss) on Investments [Line Items]
Impairment charge, other than temporary decline in fair value of investments	$ 400
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value		$ 9,598	$ 10,067
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss		(1,569)	(476)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value		9,302	13,733
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss		(1,276)	(2,596)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value		18,900	23,800
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss		(2,845)	(3,072)
Municipal Bonds [Member]
Gain (Loss) on Investments [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value			137
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss			(3)
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			137
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss			(3)
Foreign Debt [Member]
Gain (Loss) on Investments [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value		304	1,619
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss		(19)	(120)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value		1,090	1,961
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss		(157)	(315)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value		1,394	3,580
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss		(176)	(435)
Corporate Debt Securities [Member]
Gain (Loss) on Investments [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value		3,695	4,679
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss		(320)	(152)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value		350	1,439
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss		(104)	(669)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value		4,045	6,118
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss		(424)	(821)
Common Stock [Member]
Gain (Loss) on Investments [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value		4,883	1,563
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss		(1,215)	(121)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value		1,723	2,004
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss		(668)	(1,025)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value		6,606	3,567
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss		(1,883)	(1,146)
Preferred Stock [Member]
Gain (Loss) on Investments [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value		244	2,038
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss		(1)	(77)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value		6,139	8,329
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss		(347)	(587)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value		6,383	10,367
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss		(348)	(664)
Mortgage Backed Securities [Member]
Gain (Loss) on Investments [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value		133	31
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss		(13)	(3)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value		0	0
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss		0	0
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value		133	31
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss		(13)	$ (3)
Mutual Fund [Member]
Gain (Loss) on Investments [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value		339
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss		(1)
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		339
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss		$ (1)

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=73527792&loc=d3e27290-111563

Reference 2: http://www.xbrl.org/2003/role/presentationRef
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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
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