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Basis of Presentation and Summary of Significant Accounting Policies (Operations) (Details) |  | 3 Months Ended | 9 Months Ended
--- | --- | --- | ---
Dec. 31, 2016 USD ($) | Sep. 30, 2017 USD ($) funeral_homes cemeteries states | Sep. 30, 2016 USD ($) funeral_homes | Sep. 30, 2017 USD ($) funeral_homes cemeteries states segment | Sep. 30, 2016 USD ($)
Organization Description and Operations [Line Items] |  |  |  |  |
Depreciation expense |  | $ 3,100,000 | $ 2,900,000 | $ 9,400,000 | $ 8,400,000
Payments to Acquire Businesses, Net of Cash Acquired |  |  |  | $ 723,000 | 15,056,000
Number of business segments | segment |  |  |  | 2 |
Amortization Of Cemetery Property |  | $ 900,000 |  | $ 2,400,000 | 3,100,000
Period after which commissions are no longer subject to refund |  |  |  | 1 year |
The percentage of trust assets in custody of institution receiving trust management services |  | 79.00% |  | 79.00% |
Accounts Receivable, Net, Current | $ 18,860,000 | $ 18,821,000 |  | $ 18,821,000 |
Other receivables | 334,000 | 404,000 |  | 404,000 |
Preneed receivables | 30,383,000 | 31,279,000 |  | 31,279,000 |
Bad debt expense |  |  |  | 1,737,000 | 1,522,000
Income Tax Expense (Benefit), Net Of Uncertain Tax Positions |  | $ 1,522,000 | $ 1,891,000 | $ 9,283,000 | $ 8,406,000
Estimated Effective Income Tax Rate Reconciliation, Before Discrete Items, Percent |  | 40.00% | 40.00% |  | 40.00%
Period in which two-step goodwill impairment test is performed |  |  |  | 3 years |
Stock-based compensation |  | $ 70,000 |  | $ 700,000 |
Tax adjustment related to certain discrete items |  | $ (302,000) | $ (1,139,000) | (243,000) | $ (1,139,000)
Effective Income Tax Rate Reconciliation, Percent |  | 39.00% |  |  | 35.20%
Payments to Acquire Commercial Real Estate |  |  |  |  | $ 2,700,000
Number Of Funeral Homes From Which Land Buildings Were Purchased | funeral_homes |  |  | 4 |  |
Increase in Total liabilities | 709,335,000 | $ 711,813,000 |  | 711,813,000 |
Funeral And Cemetery [Member] |  |  |  |  |
Organization Description and Operations [Line Items] |  |  |  |  |
Bad debt expense |  | 600,000 | $ 500,000 | 1,700,000 | 1,500,000
Funeral [Member] |  |  |  |  |
Organization Description and Operations [Line Items] |  |  |  |  |
Accounts Receivable, Net, Current | 8,664,000 | 7,865,000 |  | 7,865,000 |
Preneed receivables | 7,761,000 | 7,943,000 |  | 7,943,000 |
Cemetery [Member] |  |  |  |  |
Organization Description and Operations [Line Items] |  |  |  |  |
Accounts Receivable, Net, Current | 9,862,000 | 10,552,000 |  | 10,552,000 |
Preneed receivables | 22,622,000 | $ 23,336,000 |  | $ 23,336,000 |
Funeral homes [Member] |  |  |  |  |
Organization Description and Operations [Line Items] |  |  |  |  |
Number of owned and operated funeral homes (in Funeral Homes) | funeral_homes |  | 171 |  | 171 |
Number of states in which Company operates | states |  | 28 |  | 28 |
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 |
Separate Income Tax Return [Member] |  |  |  |  |
Organization Description and Operations [Line Items] |  |  |  |  |
Number Of States In Which Entity Files Separate State Income Tax Returns | states |  |  |  | 15 |
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 |
Land and Building [Member] |  |  |  |  |
Organization Description and Operations [Line Items] |  |  |  |  |
Property, Plant and Equipment, Additions |  |  |  |  | $ 6,300,000
Out-of-period Immaterial Adjustment [Member] |  |  |  |  |
Organization Description and Operations [Line Items] |  |  |  |  |
Increase in Deferred tax liability | 2,255,000 |  |  |  |
Increase in Total liabilities | 2,255,000 |  |  |  |
Decrease, Retained Earnings, Total Equity | $ 2,255,000 |  |  |  |
Percentage Change, Impact of Adjustment To Deferred Tax Liability | 5.60% |  |  |  |
Percentage Change, Impact of Adjustment To Total Liabilities | 0.30% |  |  |  |
Percentage Change, Impact of Adjustment To Retained Earnings | 9.80% |  |  |  |
Percentage Change, Impact of Adjustment To Total Stockholders' Equity | 1.30% |  |  |  |
Out-of-period Immaterial Adjustment [Member] | Retained Earnings [Member] |  |  |  |  |
Organization Description and Operations [Line Items] |  |  |  |  |
Decrease, Retained Earnings, Total Equity | $ 2,255,000 |  |  |  |
Tradenames [Member] |  |  |  |  |
Organization Description and Operations [Line Items] |  |  |  |  |
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill) |  |  | $ 145,000 |  |

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