Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2017 |
Sep. 30, 2016 |
Sep. 30, 2017 |
Sep. 30, 2016 |
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| Income Taxes [Line Items] | ||||
| Income tax expense (benefit) | $ 6,635 | $ 17,281 | $ 41,354 | $ 54,400 |
| Effective tax rate | 40.00% | 39.10% | 37.00% | 38.80% |
| Other tax expense (benefit) | $ (1,200) | |||
| U.S. federal statutory rate | 35.00% | |||
| Adjustments for New Accounting Pronouncement [Member] | ||||
| Income Taxes [Line Items] | ||||
| Income tax expense (benefit) | $ (800) | |||
| X | ||||||||||
- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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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 Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of other income tax expense (benefit). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Income taxes. No definition available.
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- Details
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