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Income Taxes (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2019
Income Tax Examination [Line Items] |  |  |
Current Federal Tax Expense (Benefit) | $ 2 | $ (39) | $ (1,330)
Deferred Federal Income Tax Expense (Benefit) | 11,678 | 9,317 | 5,908
Current State and Local Tax Expense (Benefit) | 4,505 | 3,657 | 2,312
Deferred State and Local Income Tax Expense (Benefit) | 46 | (4,195) | (227)
Provision for income taxes | 16,231 | 8,740 | 6,663
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount | 17,830 | 10,352 | 8,430
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Amount | 658 | 1,974 | 1,277
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount | 3,876 | 2,662 | 2,009
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount | (118) | (3,334) | (83)
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount | 0 | 261 | 0
Effective Income Tax Rate Reconciliation, Tax Credit, Other, Amount | (715) | (75) | (556)
Effective Income Tax Rate Reconciliation, Tax Contingency, Amount | (2,898) | (1,313) | (3,967)
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Other, Amount | (2,241) | (1,787) | (144)
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount | (161) | 0 | (303)
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Allowance for Doubtful Accounts | 541 | 592 |
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Accrued Liabilities | 17,134 | 14,619 |
Deferred Tax Assets, Operating Loss Carryforwards | 6,445 | 22,623 |
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Other | 1,285 | 1,764 |
Deferred Tax Assets, Investments | 210 | 210 |
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost | 1,079 | 897 |
Deferred Tax Assets, Capital Loss Carryforwards | 1 | 74 |
Deferred Tax Assets, Leases | 9,634 | 7,681 |
Deferred Tax Assets, Other | 2,914 | 2,444 |
Deferred Tax Assets, Gross | 39,243 | 50,904 |
Deferred Tax Assets, Valuation Allowance | 592 | 710 |
Deferred Tax Assets, Net of Valuation Allowance | 38,651 | 50,194 |
Deferred Tax Liabilities, Property, Plant and Equipment | 509 | 517 |
Deferred Tax Liabilities, Goodwill and Intangible Assets | 8,765 | 7,926 |
Deferred Tax Liabilities, Leasing Arrangements | 9,615 | 7,677 |
Deferred Tax Liabilities, Other | 753 | 271 |
Deferred Tax Liabilities, Gross | 19,642 | 16,391 |
Deferred tax assets | 19,009 | 33,803 |
Operating Loss Carryforwards | 120,248 |  |
Operating Loss Carryforwards Attributable To Goodwill Amortization | 103,681 |  |
Deferred Tax Assets, Operating Loss Carryforwards, State and Local | 61,396 |  |
Reorganization Of Goodwill Excess Tax Basis | 3,869 |  |
Unrecognized Tax Benefits | 24,861 | 26,294 |
Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions | 59 | 111 |
Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions | 20 | 29 |
Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations | 3,061 | 1,573 |
Unrecognized Tax Benefits | 21,879 | 24,861 | $ 26,294
Increase in Unrecognized Tax Benefits is Reasonably Possible | 159 |  |
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued | 50 | $ 55 |
State and Local Jurisdiction [Member] |  |  |
Income Tax Examination [Line Items] |  |  |
Operating Loss Carryforwards Attributable To Goodwill Amortization | $ 5,398 |  |

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