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Basis of Presentation and Summary of Significant Accounting Policies (Operations) (Details) $ in Thousands |  | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | ---
Jan. 03, 2020 USD ($) funeral_home_and_cemetery | Mar. 31, 2021 USD ($) segment states divestiture funeral_homes cemeteries | Mar. 31, 2020 USD ($) | Sep. 30, 2021 | Sep. 30, 2020 USD ($) | Sep. 30, 2019 USD ($) | Dec. 31, 2020 USD ($)
Organization Description and Operations [Line Items] |  |  |  |  |  |  |
Depreciation expense |  | $ 3,400 | $ 3,600 |  |  |  |
Number of business segments | segment |  | 2 |  |  |  |  |
Amortization Of Cemetery Property |  | $ 1,500 | 900 |  |  |  |
Trade and financed receivables |  | $ 22,278 |  |  |  |  | $ 23,678
The percentage of trust assets in custody of institution receiving trust management services |  | 80.00% |  |  |  |  |
Accounts receivable, net of allowance for bad debts |  | $ 25,585 |  |  |  |  | 25,103
Preneed receivables |  | 21,533 |  |  |  |  | 21,081
Bad debt expense |  | 588 | 690 |  |  |  |
Income Tax Expense (Benefit), Net Of Uncertain Tax Positions |  | $ (5,641) | $ 2,150 |  |  |  |
Income taxes before discrete items |  | 31.00% | 33.60% |  |  |  |
Goodwill, Impairment Loss |  | $ 0 |  |  |  | $ 13,632 |
Unearned finance charges associated with receivables |  | 4,508 |  |  |  |  | 4,348
Amortization of capitalized commissions and non-compete agreements |  | 152 | $ 141 |  |  |  |
Accumulated Amortization, Property, Plant, and Equipment |  | $ (48,100) |  |  |  |  | (46,600)
Option to renew lease |  | 26 years |  |  |  |  |
Property, plant and equipment, gross |  |  |  |  |  |  | $ 101,100
Proceeds from divestitures and sale of other assets |  | $ 2,800 | 78 |  |  |  |
Property, Plant and Equipment, Disposals |  | 1,500 |  |  |  |  |
Property, Plant and Equipment, Additions |  | (4,300) | (2,700) |  |  |  |
Total benefit for income taxes |  | $ 5,641 | $ (2,150) |  |  |  |
Number of Businesses Sold | divestiture |  | 2 |  |  |  |  |
Funeral And Cemetery [Member] |  |  |  |  |  |  |
Organization Description and Operations [Line Items] |  |  |  |  |  |  |
Threshold period past due in which statements are sent |  | 30 days |  |  |  |  |
Threshold period past due in which past due notification letters are sent |  | 45 days |  |  |  |  |
Cemetery |  |  |  |  |  |  |
Organization Description and Operations [Line Items] |  |  |  |  |  |  |
Threshold period past due in which past due notification letters are sent |  | 15 days |  |  |  |  |
Funeral homes [Member] |  |  |  |  |  |  |
Organization Description and Operations [Line Items] |  |  |  |  |  |  |
Number of owned and operated funeral homes (in Funeral Homes) | funeral_homes |  | 173 |  |  |  |  |
Number of states in which Company operates | states |  | 26 |  |  |  |  |
Revenue, Percentage |  | 75.00% |  |  |  |  |
Cemeteries [Member] |  |  |  |  |  |  |
Organization Description and Operations [Line Items] |  |  |  |  |  |  |
Number of states in which Company operates | states |  | 12 |  |  |  |  |
Number of owned and operated cemeteries (in Cemetaries) | cemeteries |  | 32 |  |  |  |  |
Revenue, Percentage |  | 25.00% |  |  |  |  |
Lafayette, California [Member] |  |  |  |  |  |  |
Organization Description and Operations [Line Items] |  |  |  |  |  |  |
Number of Businesses Acquired | funeral_home_and_cemetery | 1 |  |  |  |  |  |
Purchase price | $ 33,000 |  |  |  |  |  |
Payments to acquire businesses |  | $ 28,000 |  |  | $ 5,000 |  |
Minimum [Member] |  |  |  |  |  |  |
Organization Description and Operations [Line Items] |  |  |  |  |  |  |
Service Contract, Term |  | 8 years |  |  |  |  |
Lessee, Operating Lease, Term of Contract |  | 1 year |  |  |  |  |
Lessee, Finance Lease, Term of Contract |  | 10 years |  |  |  |  |
Maximum [Member] |  |  |  |  |  |  |
Organization Description and Operations [Line Items] |  |  |  |  |  |  |
Service Contract, Term |  | 10 years |  | 10 years |  |  |
Lessee, Operating Lease, Term of Contract |  | 19 years |  |  |  |  |
Lessee, Finance Lease, Term of Contract |  | 40 years |  |  |  |  |

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