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Employee Benefits and Share-Based Compensation - Summary of Restricted Stock Award Activity (Details) - RSAs - 2009 Plan
shares in Thousands
3 Months Ended
Mar. 31, 2022
$ / shares
shares
Number of Shares  
Outstanding at beginning of period (in shares) | shares 11
Granted (Awarded) (in shares) | shares 0
Vested (Released) (in shares) | shares 0
Outstanding and unvested at end of period (in shares) | shares 11
Weighted-Average Grant Date Fair Value  
Outstanding at beginning of period (in dollars per share) | $ / shares $ 137.36
Granted (Awarded) (in dollars per share) | $ / shares 0
Vested (Released) (in dollars per share) | $ / shares 0
Outstanding and unvested at end of period (in dollars per share) | $ / shares $ 137.36