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Basis of Presentation and Summary of Significant Accounting Policies (Operations) (Details) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2018 USD ($) funeral_homes cemeteries states | Jun. 30, 2017 USD ($) | Jun. 30, 2018 USD ($) funeral_homes cemeteries states segment | Jun. 30, 2017 USD ($) | Dec. 31, 2017 USD ($)
Organization Description and Operations [Line Items] |  |  |  |  |
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-based Compensation Cost, Percent |  |  | 0.30% |  |
Depreciation expense | $ 3,500 | $ 3,200 | $ 6,800 | $ 6,300 |
Number of business segments | segment |  |  | 2 |  |
Amortization Of Cemetery Property | $ 900 | 800 | $ 1,800 | 1,600 |
Accounts Receivable, Gross |  |  |  |  | $ 40,474
Period after which commissions are no longer subject to refund |  |  | 1 year |  |
Preneed Cemetery Contracts, Term |  |  | 5 years |  |
The percentage of trust assets in custody of institution receiving trust management services | 77.00% |  | 77.00% |  |
Accounts receivable, net of allowance for bad debts | $ 17,026 |  | $ 17,026 |  | 19,655
Other receivables | 377 |  | 377 |  | 263
Preneed receivables | 21,327 |  | 21,327 |  | 31,644
Bad debt expense |  |  | $ 883 | $ 1,112 |
Effective Income Tax Rate Reconciliation, Percent |  |  | 27.50% | 40.00% |
Income Tax Expense (Benefit), Net Of Uncertain Tax Positions | $ 1,000 | $ 3,039 | $ 3,878 | $ 7,761 |
Estimated Effective Income Tax Rate Reconciliation, Before Discrete Items, Percent | 27.50% | 40.00% |  |  |
Effective Income Tax Rate Reconciliation, Other Adjustments, Percent |  |  | 0.20% |  |
Period in which two-step goodwill impairment test is performed |  |  | 3 years |  |
Goodwill, Qualitative Impairment Assessment, Period |  |  | 2 years |  |
Stock-based compensation |  |  | $ 700 |  |
Tax adjustment related to certain discrete items | $ (30) | $ 59 | (517) | 59 |
Increase in Total liabilities | $ 705,633 |  | $ 705,633 |  | $ 723,877
Allowance for Doubtful Accounts, Percentage of Accounts Receivable | (3.00%) |  | (3.00%) |  | (2.50%)
Unearned finance charges associated with receivables |  |  |  |  | $ 5,700
Percent of total receivables which are 120 days or more past due (in Percent) | 4.90% |  | 4.90% |  | 4.90%
Amortization of capitalized commissions on preneed contracts | $ 144 |  | $ 293 | 0 |
Payments to Acquire Businesses, Net of Cash Acquired |  |  | 0 | 625 |
Funeral And Cemetery [Member] |  |  |  |  |
Organization Description and Operations [Line Items] |  |  |  |  |
Bad debt expense | 400 | $ 700 | 900 | $ 1,100 |
Funeral |  |  |  |  |
Organization Description and Operations [Line Items] |  |  |  |  |
Accounts Receivable, Gross | 6,700 |  | 6,700 |  | $ 8,500
Accounts receivable, net of allowance for bad debts | 7,099 |  | 7,099 |  | 9,061
Other receivables | 600 |  | 600 |  | 800
Preneed receivables | 0 |  | 0 |  | 7,934
Cemetery |  |  |  |  |
Organization Description and Operations [Line Items] |  |  |  |  |
Accounts Receivable, Gross | 42,165 |  | 42,165 |  |
Accounts receivable, net of allowance for bad debts | 9,550 |  | 9,550 |  | 10,331
Preneed receivables | 21,327 |  | 21,327 |  | 23,710
Unearned finance charges associated with receivables | $ 5,700 |  | $ 5,700 |  |
Funeral homes [Member] |  |  |  |  |
Organization Description and Operations [Line Items] |  |  |  |  |
Number of owned and operated funeral homes (in Funeral Homes) | funeral_homes | 178 |  | 178 |  |
Number of states in which Company operates | states | 29 |  | 29 |  |
Revenue, Percentage | 78.00% |  | 78.00% |  |
Cemeteries [Member] |  |  |  |  |
Organization Description and Operations [Line Items] |  |  |  |  |
Number of states in which Company operates | states | 11 |  | 11 |  |
Number of owned and operated cemeteries (in Cemetaries) | cemeteries | 32 |  | 32 |  |
Revenue, Percentage | 22.00% |  | 22.00% |  |
Perpetual Care Trust Invesments [Member] |  |  |  |  |
Organization Description and Operations [Line Items] |  |  |  |  |
Accounts receivable, net of allowance for bad debts | $ 1,100 |  | $ 1,100 |  | $ 1,300
Separate Income Tax Return [Member] |  |  |  |  |
Organization Description and Operations [Line Items] |  |  |  |  |
Number Of States In Which Entity Files Separate State Income Tax Returns | states |  |  | 16 |  |
Combined Or Unitary Income Tax Return [Member] |  |  |  |  |
Organization Description and Operations [Line Items] |  |  |  |  |
Number Of States In Which Entity Files Unitary Tax Returns | states |  |  | 13 |  |
Minimum [Member] |  |  |  |  |
Organization Description and Operations [Line Items] |  |  |  |  |
Service Contract, Term |  |  | 8 years |  |
Maximum [Member] |  |  |  |  |
Organization Description and Operations [Line Items] |  |  |  |  |
Service Contract, Term |  |  | 10 years |  |
Transferred at Point in Time [Member] |  |  |  |  |
Organization Description and Operations [Line Items] |  |  |  |  |
Revenue, Remaining Performance Obligation | $ 371,500 |  | $ 371,500 |  |

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