Income Taxes - Summary of Income Tax Expense and Effective Tax Rate (Detail) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2018 |
Sep. 30, 2017 |
Sep. 30, 2018 |
Sep. 30, 2017 |
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| Income Tax Disclosure [Abstract] | ||||
| Income tax expense | $ 16,821 | $ 11,030 | $ 45,521 | $ 42,546 |
| Effective tax rate | 13.70% | 9.40% | 13.00% | 12.90% |
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- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- References No definition available.
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| X | ||||||||||
- 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/disclosureRef
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