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Deferred Tax Liability (Details) - USD ($) $ in Thousands | Jun. 30, 2021 | Jun. 30, 2020
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Income Tax Disclosure [Abstract] |  |
Contract and service revenues | $ 13,428 | $ 14,469
Expense reserves (bad debts,compensation, and payroll tax) | 17,566 | 14,096
Leasing liabilities | 15,182 | 17,122
Net operating loss and tax credit carryforwards | 3,242 | 3,786
Other, net | 2,634 | 2,327
Total gross deferred tax assets | 52,052 | 51,800
Valuation allowance | (270) | (473)
Net deferred tax assets | 51,782 | 51,327
Accelerated tax depreciation | (37,066) | (39,619)
Accelerated tax amortization | (175,804) | (166,343)
Contract and service costs | (85,696) | (73,331)
Leasing right-of-use assets | (13,974) | (16,032)
Total gross deferred liabilities | 312,540 | 295,325
Net deferred tax liability | $ (260,758) | $ (243,998)

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