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Stock-Based Compensation - Summary of Changes in Unvested Restricted Stock Units (Parenthetical) (Detail) | 6 Months Ended
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Jun. 30, 2014
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] |
Restricted stock units vest and convert into shares of our common stock | 4 years
Restricted stock units vested description after specified period | 25

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- Definition Restricted Stock Unit Conversion Into Shares Period + References No definition available. + Details
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- Definition Restricted Stock Units Vested Description After Specified Period + References No definition available. + Details
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- Details
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