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Basis of Presentation and Summary of Significant Accounting Policies (Operations) (Details) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Sep. 30, 2020 USD ($) cemeteries states funeral_homes | Mar. 31, 2020 USD ($) | Sep. 30, 2019 USD ($) | Mar. 31, 2019 USD ($) | Sep. 30, 2020 USD ($) funeral_homes cemeteries states segment | Sep. 30, 2019 USD ($) | Dec. 31, 2019 USD ($) | Jan. 03, 2020 USD ($)
Organization Description and Operations [Line Items] |  |  |  |  |  |  |  |
Depreciation expense |  |  | $ 3,500 |  | $ 10,800 | $ 10,400 |  |
Number of business segments | segment |  |  |  |  | 2 |  |  |
Amortization Of Cemetery Property | $ 1,500 |  | 1,000 |  | $ 3,400 | 3,000 |  |
Trade and financed receivables | $ 21,090 |  |  |  | $ 21,090 |  | $ 20,554 |
The percentage of trust assets in custody of institution receiving trust management services | 80.00% |  |  |  | 80.00% |  |  |
Accounts receivable, net of allowance for bad debts | $ 22,277 |  |  |  | $ 22,277 |  | 21,478 |
Preneed receivables | 20,324 |  |  |  | 20,324 |  | 20,173 |
Bad debt expense |  |  |  |  | 1,837 | 1,188 |  |
Income Tax Expense (Benefit), Net Of Uncertain Tax Positions | $ (2,859) |  | $ (947) |  | $ (4,158) | $ (5,770) |  |
Income taxes before discrete items | 34.00% |  | 61.00% |  | 33.80% | 31.30% |  |
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill) |  | $ 1,100 |  |  |  |  |  |
Goodwill, Impairment Loss |  | $ 13,600 |  | $ 0 | $ 13,632 |  |  |
Unearned finance charges associated with receivables | $ 4,166 |  |  |  | 4,166 |  | 4,522 |
Amortization of capitalized commissions on preneed contracts | 145 |  | $ 140 |  | 430 | $ 417 |  |
Accumulated Amortization, Property, Plant, and Equipment | (45,100) |  |  |  | $ (45,100) |  | (41,700) |
Lease Term, Options To Extend |  |  |  |  | 26 years |  |  |
Property, plant and equipment, gross | 101,300 |  |  |  | $ 101,300 |  | 87,000 |
Accounts Receivable, Allowance for Credit Loss, Period Increase (Decrease) | (100) |  |  |  |  |  |  |
Proceeds from divestitures and sale of other assets | 7,300 |  |  |  | 7,416 | 967 | $ 900 |
Property, Plant and Equipment, Disposals | 6,500 |  |  |  |  |  |  |
Property, Plant and Equipment, Additions |  |  |  |  | (10,000) |  |  |
Total benefit for income taxes | $ 2,859 |  | 947 |  | $ 4,158 | 5,770 |  |
Funeral And Cemetery [Member] |  |  |  |  |  |  |  |
Organization Description and Operations [Line Items] |  |  |  |  |  |  |  |
Bad debt expense |  |  | $ 300 |  |  | $ 800 |  |
Funeral homes [Member] |  |  |  |  |  |  |  |
Organization Description and Operations [Line Items] |  |  |  |  |  |  |  |
Number of owned and operated funeral homes (in Funeral Homes) | funeral_homes | 180 |  |  |  | 180 |  |  |
Number of states in which Company operates | states | 27 |  |  |  | 27 |  |  |
Revenue, Percentage | 75.00% |  |  |  | 75.00% |  |  |
Cemeteries [Member] |  |  |  |  |  |  |  |
Organization Description and Operations [Line Items] |  |  |  |  |  |  |  |
Number of states in which Company operates | states | 12 |  |  |  | 12 |  |  |
Number of owned and operated cemeteries (in Cemetaries) | cemeteries | 32 |  |  |  | 32 |  |  |
Revenue, Percentage | 25.00% |  |  |  | 25.00% |  |  |
Lafayette, California [Member] |  |  |  |  |  |  |  |
Organization Description and Operations [Line Items] |  |  |  |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss, Noncurrent | $ 400 |  |  |  | $ 400 |  |  |
Accounts Receivable, Allowance for Credit Loss, Period Increase (Decrease) |  |  |  |  | 500 |  |  |
Property, plant & equipment | $ 1,720 |  |  |  | $ 1,720 |  |  | $ 1,720
Minimum [Member] |  |  |  |  |  |  |  |
Organization Description and Operations [Line Items] |  |  |  |  |  |  |  |
Service Contract, Term |  |  |  |  | 8 years |  |  |
Lessee, Operating Lease, Term of Contract | 1 year |  |  |  | 1 year |  |  |
Lessee, Finance Lease, Term of Contract | 10 years |  |  |  | 10 years |  |  |
Maximum [Member] |  |  |  |  |  |  |  |
Organization Description and Operations [Line Items] |  |  |  |  |  |  |  |
Service Contract, Term |  |  |  |  | 10 years |  |  |
Lessee, Operating Lease, Term of Contract | 19 years |  |  |  | 19 years |  |  |
Lessee, Finance Lease, Term of Contract | 40 years |  |  |  | 40 years |  |  |

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