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Basis of Presentation and Summary of Significant Accounting Policies (Narrative) (Details) shares in Thousands				1 Months Ended		3 Months Ended			12 Months Ended
	Sep. 30, 2018 USD ($) business	Aug. 21, 2018 acquisitions	Jul. 10, 2018 acquisitions	Dec. 24, 2019 acquisitions	Oct. 31, 2019 acquisitions business	Mar. 31, 2019 USD ($)	Sep. 30, 2018 USD ($) business	Mar. 31, 2018 USD ($)	Dec. 31, 2019 USD ($) states business	Dec. 31, 2019 USD ($) locations states business	Dec. 31, 2019 USD ($) transaction states business	Dec. 31, 2019 USD ($) funeral_homes states business	Dec. 31, 2019 USD ($) acquisitions states business	Dec. 31, 2019 USD ($) states business shares	Dec. 31, 2019 USD ($) states business	Dec. 31, 2019 USD ($) states business	Dec. 31, 2019 USD ($) states business segment	Dec. 31, 2018 USD ($) locations business shares	Dec. 31, 2017 USD ($) locations shares	Dec. 31, 2016 USD ($)
Debt Instrument [Line Items]
Number Of Transactions | transaction											3
Number of Businesses Acquired | acquisitions													2
Number Of Ancillary Services Acquired In Acquisitions | acquisitions													3
Retained earnings									$ 86,213,000	$ 86,213,000	$ 86,213,000	$ 86,213,000	$ 86,213,000	$ 86,213,000	$ 86,213,000	$ 86,213,000	$ 86,213,000	$ 71,680,000
Financing Receivable, before Allowance for Credit Loss									41,316,000	41,316,000	41,316,000	41,316,000	41,316,000	41,316,000	41,316,000	41,316,000	41,316,000	37,244,000
Unearned Finance Charges Included In Receivables									$ 4,500,000	$ 4,500,000	$ 4,500,000	$ 4,500,000	$ 4,500,000	$ 4,500,000	$ 4,500,000	$ 4,500,000	$ 4,500,000	$ 4,600,000
Percent of total receivables which are 120 days or more past due (in percent)									4.40%	4.40%	4.40%	4.40%	4.40%	4.40%	4.40%	4.40%	4.40%	4.60%
Number of operating locations at year end | locations										217								211	210
Share-based Payment Arrangement, Expense, Tax Benefit																$ 400,000		$ 800,000
Taxes paid on restricted stock vestings and exercise of non-qualified options																(194,000)		(651,000)	$ (509,000)
Debt Issuance Costs, Net									$ 1,618,000	$ 1,618,000	$ 1,618,000	$ 1,618,000	$ 1,618,000	$ 1,618,000	$ 1,618,000	$ 1,618,000	$ 1,618,000	955,000
Number of states in which the entity operated funeral homes (in States) | states									29	29	29	29	29	29	29	29	29
Number of states in which the entity operated cemeteries (in States) | states									11	11	11	11	11	11	11	11	11
Number of business segments | segment																	2
Amortization Of Cemetery Property						$ 4,000,000		$ 3,600,000											3,300,000
Accounts receivable, net of allowance for bad debts									$ 21,478,000	$ 21,478,000	$ 21,478,000	$ 21,478,000	$ 21,478,000	$ 21,478,000	$ 21,478,000	$ 21,478,000	$ 21,478,000	18,897,000
Bad debt																$ 1,618,000		1,841,000	2,198,000
The percentage of trust assets in custody of institution receiving trust management services									71.00%	71.00%	71.00%	71.00%	71.00%	71.00%	71.00%	71.00%	71.00%
Preneed Cemetery Contracts, Term						5 years
Field depreciation expense																$ 13,800,000		13,800,000	$ 12,600,000
Impairment of long lived assets																$ 173,000		$ 0
Number of funeral homes acquired		1										4	7
Incremental common shares attributable to dilutive effect of conversion of debt securities | shares														10				337	941
Allowance for Doubtful Accounts, Percentage of Accounts Receivable									2.20%	2.20%	2.20%	2.20%	2.20%	2.20%	2.20%	2.20%	2.20%
Other Receivables									$ 681,000	$ 681,000	$ 681,000	$ 681,000	$ 681,000	$ 681,000	$ 681,000	$ 681,000	$ 681,000	$ 200,000
Cemetery Property, Net									$ 87,032,000	$ 87,032,000	$ 87,032,000	$ 87,032,000	$ 87,032,000	$ 87,032,000	$ 87,032,000	87,032,000	$ 87,032,000	74,958,000
Amortization of capitalized commissions on preneed contracts																$ 558,000		$ 599,000	$ 0
Number Of Business Closed | business	3						3		3	3	3	3	3	3	3	3	3	3
Disposal Group, Not Discontinued Operation, Loss (Gain) on Write-down	$ 125,000						$ 125,000
Goodwill and Intangible Asset Impairment																$ 500,000		$ 800,000
Goodwill, Other Increase (Decrease)																(200,000)
Goodwill, Written off Related to Sale of Business Unit																4,197,000		0
Goodwill and other impairments																963,000		1,019,000	$ 0
Past due notifications starting date (in days)									15 days
Number of days past due contractual payments are when they are provided for with a one hundred percent allowance (in Days)									90 days
Accumulated amortization of cemetery property									$ 37,700,000	$ 37,700,000	$ 37,700,000	$ 37,700,000	$ 37,700,000	$ 37,700,000	$ 37,700,000	37,700,000	$ 37,700,000	41,700,000
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Reserves									3,200,000	3,200,000	3,200,000	3,200,000	3,200,000	3,200,000	$ 3,200,000	3,200,000	3,200,000
Separate Income Tax Return
Debt Instrument [Line Items]
Number of States in Which Entity Files Separate State Income Tax Returns | states															15
Combined or unitary income tax return
Debt Instrument [Line Items]
Number of States in Which Entity Files Unitary Tax Returns | states															14
Funeral
Debt Instrument [Line Items]
Revenue, Remaining Performance Obligation, Amount									8,900,000	$ 8,900,000	8,900,000	8,900,000	8,900,000	8,900,000	$ 8,900,000	8,900,000	8,900,000	$ 8,300,000
Number of operating locations at year end | locations										186								182	178
Cemetery
Debt Instrument [Line Items]
Revenue, Remaining Performance Obligation, Amount									$ 4,800,000	$ 4,800,000	$ 4,800,000	$ 4,800,000	$ 4,800,000	$ 4,800,000	$ 4,800,000	$ 4,800,000	$ 4,800,000	$ 4,400,000
Number of operating locations at year end | locations										31								29	32
Funeral Homes [Member]
Debt Instrument [Line Items]
Revenue, Percentage									80.00%	80.00%	80.00%	80.00%	80.00%	80.00%	80.00%	80.00%	80.00%
Cemeteries [Member]
Debt Instrument [Line Items]
Revenue, Percentage									20.00%	20.00%	20.00%	20.00%	20.00%	20.00%	20.00%	20.00%	20.00%
Perpetual Care Trust Investments
Debt Instrument [Line Items]
Accounts receivable, net of allowance for bad debts									$ 100,000	$ 100,000	$ 100,000	$ 100,000	$ 100,000	$ 100,000	$ 100,000	$ 100,000	$ 100,000	$ 1,800,000
Buffalo, New York [Member]
Debt Instrument [Line Items]
Number of funeral homes acquired | acquisitions					4
Dallas, Texas [Member]
Debt Instrument [Line Items]
Number of Businesses Acquired | acquisitions					1
Number Of Ancillary Services Acquired In Acquisitions | business					3
Number of funeral homes acquired | acquisitions					3
Fairfax, Virginia [Member]
Debt Instrument [Line Items]
Number of Businesses Acquired | acquisitions				1
Fredericksburg, Virginia [Member]
Debt Instrument [Line Items]
Number of funeral homes acquired | acquisitions			1
NORTH CAROLINA
Debt Instrument [Line Items]
Number of funeral homes acquired | acquisitions		1
Trade Names
Debt Instrument [Line Items]
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)																0			$ 200,000
Convertible subordinated notes
Debt Instrument [Line Items]
Debt Issuance Costs, Net									29,000	29,000	29,000	29,000	29,000	29,000	29,000	29,000	29,000	54,000
Discontinued Operations, Disposed of by Sale [Member] | KENTUCKY
Debt Instrument [Line Items]
Disposal Group, Including Discontinued Operation, Consideration																		900,000
Discontinued Operations, Disposed of by Sale [Member] | Tennessee
Debt Instrument [Line Items]
Disposal Group, Including Discontinued Operation, Consideration																				$ 600,000
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest																(3,164,000)		535,000	$ 281,000
Cemetery
Debt Instrument [Line Items]
Accounts Receivable, Allowance for Credit Loss, Current									580,000	580,000	580,000	580,000	580,000	580,000	580,000	580,000	580,000	622,000
Accounts receivable, net of allowance for bad debts									10,039,000	10,039,000	10,039,000	10,039,000	10,039,000	10,039,000	10,039,000	10,039,000	10,039,000	9,688,000
Accounts Receivable, Allowance for Credit Loss, Noncurrent									1,290,000	1,290,000	1,290,000	1,290,000	1,290,000	1,290,000	1,290,000	1,290,000	1,290,000	1,228,000
Funeral
Debt Instrument [Line Items]
Accounts Receivable, Allowance for Credit Loss, Current									189,000	189,000	189,000	189,000	189,000	189,000	189,000	189,000	189,000	213,000
Accounts Receivable, before Allowance for Credit Loss									9,900,000	9,900,000	9,900,000	9,900,000	9,900,000	9,900,000	9,900,000	9,900,000	9,900,000	8,500,000
Accounts receivable, net of allowance for bad debts									10,758,000	10,758,000	10,758,000	10,758,000	10,758,000	10,758,000	10,758,000	10,758,000	10,758,000	9,002,000
Other Receivables									$ 1,100,000	$ 1,100,000	$ 1,100,000	$ 1,100,000	$ 1,100,000	$ 1,100,000	$ 1,100,000	$ 1,100,000	$ 1,100,000	$ 700,000
Minimum
Debt Instrument [Line Items]
Service Contract, Term									8 years
Lease Term									1 year
Maximum
Debt Instrument [Line Items]
Service Contract, Term									10 years
Lease Term									19 years
Lease Term, Options To Extend									26 years

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