New Accounting Pronouncements - Additional Information (Detail) - USD ($) $ in Thousands |
3 Months Ended | |
|---|---|---|
Mar. 31, 2017 |
Mar. 31, 2016 |
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| Accounting Changes and Error Corrections [Abstract] | ||
| Income tax benefit related to the settlement of share-based awards during period | $ 4,900 | |
| Share-based payments reclassified from operating activity to financing activity | $ 16,192 | $ 6,072 |
| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition The total recognized tax benefit related to compensation cost for equity-based payment arrangements recognized in income during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of cash outflow to satisfy an employee's income tax withholding obligation as part of a net-share settlement of a share-based award. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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