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Equity-based Compensation - Summary of Time-Based Restricted Stock Units and Deferred Stock Units Activity (Details) - Equity Plan [Member]
12 Months Ended
Dec. 31, 2020
$ / shares
shares
Time-Based Restricted Stock Units [Member]  
Number of Shares/Units  
Unvested units, Beginning Balance (shares) | shares 250,320
Granted (shares) | shares 155,622
Vested (shares) | shares (119,107)
Forfeited (shares) | shares (2,938)
Unvested units, Ending Balance (shares) | shares 283,897
Weighted-Average Grant Date Fair Value  
Unvested units, Beginning Balance (in dollars per share) | $ / shares $ 38.66
Granted (in dollars per share) | $ / shares 48.20
Vested (in dollars per share) | $ / shares 39.10
Forfeited (in dollars per share) | $ / shares 43.92
Unvested units, Ending Balance (in dollars per share) | $ / shares $ 43.65
Deferred Stock Units [Member]  
Number of Shares/Units  
Unvested units, Beginning Balance (shares) | shares 0
Granted (shares) | shares 44,729
Vested (shares) | shares (44,729)
Forfeited (shares) | shares 0
Unvested units, Ending Balance (shares) | shares 0
Weighted-Average Grant Date Fair Value  
Unvested units, Beginning Balance (in dollars per share) | $ / shares $ 0
Granted (in dollars per share) | $ / shares 27.92
Vested (in dollars per share) | $ / shares 27.92
Forfeited (in dollars per share) | $ / shares 0
Unvested units, Ending Balance (in dollars per share) | $ / shares $ 0