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Income Taxes (Details) - USD ($) | 3 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020 | Dec. 31, 2020 | Mar. 31, 2020
Income Tax Disclosure [Abstract] |  |  |  |  |  |
Effective tax rate, percentage | 20.60% | 18.00% | 17.60% | 29.40% |  |
AMT tax credit refund |  |  |  |  |  | $ 102,482,000
Total amount of uncertain tax positions | $ 31,891,000 |  | $ 31,891,000 |  | $ 31,891,000 |
Unrecognized tax benefits that would impact effective tax rate | 31,891,000 |  | 31,891,000 |  | 31,891,000 |
Accrued interest liability | 0 |  | $ 0 |  | $ 0 |
Net increase in deferred tax expense | 11,455,000 |  |  |  |  |
Increase in deferred taxes relating to state apportionment rate changes | 16,507,000 |  |  |  |  |
State Net Operating Loss |  |  |  |  |  |
Valuation Allowance [Line Items] |  |  |  |  |  |
Change in valuation allowance | $ 5,052,000 |  |  |  |  |

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- Definition Effective Income Tax Rate Reconciliation, Deduction, State Apportionment Rate Changes, Amount + References No definition available. + Details
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- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32687-109319 + Details
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- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in the valuation allowance for deferred tax assets. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32687-109319 + Details
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