Income Taxes - Additional Information (Details) - USD ($) $ in Thousands |
3 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|
Dec. 31, 2017 |
Dec. 31, 2017 |
Dec. 31, 2018 |
Jan. 01, 2018 |
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| Income Taxes [Line Items] | ||||
| Provision for income taxes benefit (expense) related to remeasurement of net deferred tax liability | $ (28,400) | $ 28,400 | ||
| Net long-term deferred tax asset | 2,900 | 2,900 | $ 3,700 | |
| Net long-term deferred tax liability | 51,619 | 51,619 | 33,178 | |
| Gross deferred tax assets related to state net operating loss carryforwards | 277,300 | |||
| Valuation allowance related to certain state net operating loss carryforward deferred tax assets | 8,100 | |||
| Liabilities recorded related to unrecognized tax benefits | $ 5,300 | |||
| Liabilities related to interest and penalties | 600 | $ 600 | ||
| Unrecognized tax benefit that would affect income tax rate if recognized | $ 4,700 | $ 4,700 | $ 4,900 |
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Tax cuts and jobs act of 2017 change in tax rate income tax expense benefit. No definition available.
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- Definition A recorded liability related to interest and penalties which the entity has estimated may be paid as a result of its tax positions. No definition available.
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- Definition Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards classified as noncurrent. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible state and local operating loss carryforwards. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards that are subject to expiration dates. No definition available.
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- Definition Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences, with jurisdictional netting and classified as noncurrent. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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