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Stock-Based Compensation - Schedule of Restricted Stock Unit Activity (Detail) - Non-vested restricted stock units
3 Months Ended
Mar. 31, 2020
$ / shares
shares
Number of Shares  
Non-vested outstanding at January 1, 2020 (in shares) | shares 1,022,835
Granted (in shares) | shares 135,280
Vested (in shares) | shares (46,031)
Canceled (in shares) | shares (42,916)
Non-vested outstanding at March 31, 2020 (in shares) | shares 1,069,168
Weighted Average Grant Date Fair Value  
Non-vested outstanding at January 1, 2020 (in usd per share) | $ / shares $ 31.39
Fair value of shares granted (in usd per share) | $ / shares 53.92
Vested (in usd per share) | $ / shares 33.34
Canceled (in usd per share) | $ / shares 32.38
Non-vested outstanding at March 31, 2020 (in usd per share) | $ / shares $ 34.11