Summary of Significant Accounting Policies - Income Taxes (Detail) |
6 Months Ended |
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Jun. 30, 2017
USD ($)
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| Income Taxes [Line Items] | |
| Total amount of unrecognized tax benefits relating to uncertain tax positions | $ 36,300,000 |
| Amount of unrecognized tax benefits change from year end relating to uncertain tax positions | 1,100,000 |
| Maximum | |
| Income Taxes [Line Items] | |
| Reasonably possible reduction to the balance of unrecognized tax benefits in succeeding 12 months | $ 13,400,000.0 |
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- Definition Income taxes. No definition available.
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- Definition Amount of decrease reasonably possible in the next twelve months for the unrecognized tax benefit. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of unrecognized tax benefits. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of increase (decrease) in unrecognized tax benefits attributable to uncertain tax positions taken in tax returns. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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