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Summary of Company's RSU Activity (Detail) - Restricted Stock Units and Performance Stock Units $ / shares in Units, $ in Thousands | 12 Months Ended
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Dec. 31, 2020 USD ($) $ / shares shares
Number of Shares |
Outstanding, Begining Balance | shares | 1,445,163
Granted | shares | 1,079,727
Vested | shares | (255,953)
Cancelled/forfeited | shares | (61,690)
Outstanding, Ending Balance | shares | 2,207,247
Weighted Average Grant Date Fair Value |
Weighted Average Grant Date Fair Value , Begining Balance | $ / shares | $ 24.50
Weighted Average Grant Date Fair Value, Granted | $ / shares | 44.03
Weighted Average Grant Date Fair Value, Vested | $ / shares | 23.83
Weighted Average Grant Date Fair Value, Cancelled/forfeited | $ / shares | 35.95
Weighted Average Grant Date Fair Value, Ending Balance | $ / shares | $ 33.81
Aggregate Intrinsic Value |
Aggregate Intrinsic Value, Outstanding | $ | $ 117,999

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