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Equity - Incentive Equity Awards - Additional Information (Detail) - USD ($) $ in Thousands				3 Months Ended
	Feb. 01, 2017	Jul. 11, 2016	Feb. 01, 2016	Mar. 31, 2017	Mar. 31, 2016
Stockholders Equity Note [Line Items]
Stock options, outstanding				23,461,406
Restricted stock units, outstanding				9,811,802
Shares issued, exercise of stock options				172,027	21,369
Proceeds from exercise of stock options, net of transaction costs				$ 296	$ 22
Stock Options
Stockholders Equity Note [Line Items]
Percentage of outstanding shares on a fully diluted basis				7.00%
Stock Options | Stock Incentive Plan 2011
Stockholders Equity Note [Line Items]
Stock options, Granted	2,642,500	208,340	2,442,000
Stock units, Vesting Period	4 years		4 years
Restricted Stock Units (RSUs)
Stockholders Equity Note [Line Items]
Percentage of outstanding shares on a fully diluted basis				3.00%
Restricted Stock Units (RSUs) | Stock Incentive Plan 2011
Stockholders Equity Note [Line Items]
Stock units, Granted	1,575,000	148,403	1,607,500
Stock units, Vesting Period	3 years	3 years	3 years
Shares issued, related to the vesting of RSUs	989,000
Restricted Stock Units (RSUs) | Stock Incentive Plan 2011 | Vest over a three year period
Stockholders Equity Note [Line Items]
Shares issued, related to the vesting of RSUs			494,885
Treasury shares for settlement of employee tax obligations			191,899

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Percentage of outstanding common shares and preferred shares on fully diluted basis.

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