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Net Income per Common Share - Summary of Calculation of Basic and Diluted EPS (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Numerator:
Net income	$ 172,580	$ 8,767
Denominator:
Weighted average shares outstanding, basic	206,571	116,258
Dilutive effect of options and RSUs	2,053	1,236
Weighted average shares outstanding, diluted	208,624	117,494
Net income per share:
Basic	$ 0.84	$ 0.08
Diluted	$ 0.83	$ 0.07
Antidilutive and contingent options and RSUs excluded from diluted EPS	78	217

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