XML 86 R75.htm IDEA: XBRL DOCUMENT v3.22.0.1
Stock-Based Compensation - Restricted Stock and Restricted Stock Units (Details) - $ / shares
shares in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Restricted Stock      
Number of Shares      
Number of shares unvested, beginning of period (in shares) 99 495 890
Number of shares, granted (in shares) 0 0 0
Number of shares, vested (in shares) (99) (396) (395)
Number of shares, forfeited (in shares) 0 0 0
Number of shares unvested, end of period (in shares) 0 99 495
Weighted Average Grant Date Fair Value      
Weighted average grant date fair value, beginning of period (in USD per share) $ 4.25 $ 4.25 $ 4.25
Weighted average grant date fair value, granted (in USD per share) 0 0 0
Weighted average grant date fair value, vested (in USD per share) 4.25 4.25 4.25
Weighted average grant date fair value, forfeited (in USD per share) 0 0 0
Weighted average grant date fair value, end of period (in USD per share) $ 0 $ 4.25 $ 4.25
RSUs      
Number of Shares      
Number of shares unvested, beginning of period (in shares) 4,490 2,894 1,129
Number of shares, granted (in shares) 3,842 3,570 2,715
Number of shares, vested (in shares) (1,872) (1,504) (479)
Number of shares, forfeited (in shares) (679) (470) (471)
Number of shares unvested, end of period (in shares) 5,781 4,490 2,894
Weighted Average Grant Date Fair Value      
Weighted average grant date fair value, beginning of period (in USD per share) $ 28.13 $ 26.34 $ 18.90
Weighted average grant date fair value, granted (in USD per share) 43.57 28.23 27.81
Weighted average grant date fair value, vested (in USD per share) 28.14 25.37 18.28
Weighted average grant date fair value, forfeited (in USD per share) 33.64 26.68 25.21
Weighted average grant date fair value, end of period (in USD per share) $ 37.74 $ 28.13 $ 26.34