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Equity - Incentive Equity Awards - Additional Information (Detail) - USD ($) $ in Thousands					1 Months Ended	6 Months Ended
	Mar. 02, 2020	Feb. 03, 2020	May 20, 2019	Feb. 01, 2019	Jun. 01, 2020	Jun. 30, 2020	Jun. 30, 2019
Stockholders Equity Note [Line Items]
Shares issued, exercise of stock options						560,755	4,458,143
Proceeds from exercise of stock options, net of transaction costs						$ 1,658	$ 17,344
Stock Incentive Plan 2011
Stockholders Equity Note [Line Items]
Stock options, outstanding						17,177,729
Restricted Stock Units (RSUs)
Stockholders Equity Note [Line Items]
Shares issued, related to the vesting of RSUs						1,143,934	1,533,061
Treasury shares for settlement of employee tax obligations						418,847	580,765
Restricted Stock Units (RSUs) | Stock Incentive Plan 2011
Stockholders Equity Note [Line Items]
Restricted stock units, outstanding						7,571,974
Percentage of outstanding shares on a fully diluted basis						2.00%
Stock units, Granted	821,950		45,163	757,800
Stock units, Vesting Period	3 years		3 years	3 years	3 years
Stock units, additional granted			20,000
Restricted Stock Units (RSUs) | Stock Incentive Plan 2011 | Employees
Stockholders Equity Note [Line Items]
Stock units, Granted		1,253,400		580,000	782,520
Stock Options | Stock Incentive Plan 2011
Stockholders Equity Note [Line Items]
Percentage of outstanding shares on a fully diluted basis						4.00%
Stock units, Vesting Period		4 years		4 years
Stock options, Granted		1,875,000	58,721	1,193,400
Performance-Based RSUs
Stockholders Equity Note [Line Items]
Shares issued, related to the vesting of RSUs						974,754
Treasury shares for settlement of employee tax obligations						411,956

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