Equity - Incentive Equity Awards - Additional Information (Detail) - USD ($) $ in Thousands					6 Months Ended
	May 15, 2017	Feb. 01, 2017	Jul. 11, 2016	Feb. 01, 2016	Jun. 30, 2017	Jun. 30, 2016
Stockholders Equity Note [Line Items]
Stock options, outstanding					23,710,305
Restricted stock units, outstanding					12,102,429
Shares issued, exercise of stock options					221,345	83,020
Proceeds from exercise of stock options, net of transaction costs					$ 396	$ 124
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	131,575	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					4.00%
Restricted Stock Units (RSUs) | Stock Incentive Plan 2011
Stockholders Equity Note [Line Items]
Stock units, Granted	91,504	1,575,000	148,403	1,607,500
Stock units, Vesting Period	3 years	3 years	3 years	3 years
Shares issued, related to the vesting of RSUs		989,000
Restricted Stock Units (RSUs) | Stock Incentive Plan 2011 | Vesting Period
Stockholders Equity Note [Line Items]
Stock units, Granted	2,310,000
Stock units, Vesting Period	3 years
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