Income Taxes - Additional Information (Detail) - USD ($) |
12 Months Ended | |||
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Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
Dec. 31, 2015 |
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| Income Taxes [Line Items] | ||||
| Change in uncertain tax positions | $ 0 | $ 300,000 | $ 3,000,000 | |
| Cash paid for income taxes, net of refunds | 46,700,000 | 29,300,000 | 24,100,000 | |
| Liability for uncertain tax positions | $ 3,000,000 | $ 3,000,000 | $ 3,300,000 | |
| Scenario, Forecast [Member] | ||||
| Income Taxes [Line Items] | ||||
| Effective corporate federal tax rate | 21.00% | |||
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- Definition Income Taxes [Line Items] No definition available.
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- Definition Percentage of domestic federal statutory tax rate applicable to pretax income (loss). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount recognized for uncertainty in income taxes classified as current. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of increase (decrease) to previously recorded tax expense. Includes, but is not limited to, significant settlements of income tax disputes, and unusual tax positions or infrequent actions taken by the entity, including tax assessment reversal, and IRS tax settlement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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