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Equity-based Compensation - Summary of Activity Related to Restricted Stock Unit Awards (Details) - Restricted Stock Units - $ / shares
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Number of shares, Non-vested at beginning of period 1,229,863 273,354
Number of shares, Granted during the period 0 645,346
Number of shares, Vested during the period (160,668) (44,501)
Number of shares, Forfeited during the period (56,429) (29,845)
Number of shares, Non-vested at end of period 1,012,766 844,354
Weighted average fair value per unit at award date, Non-vested at beginning of period $ 19.97 $ 26.49
Weighted average fair value per unit at award date, Granted during the period 0 17.87
Weighted average fair value per unit at award date, Vested during the period 20.55 26.50
Weighted average fair value per unit at award date, Forfeited during the period 20.20 19.76
Weighted average fair value per unit at award date, Non-vested at end of period $ 19.86 $ 20.14