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Stock-Based Compensation (Tables)
9 Months Ended
Sep. 30, 2021
Share-based Payment Arrangement, Noncash Expense [Abstract]  
Schedule of Nonvested Share Activity
The following table summarizes the restricted stock awards, deferred stock units, and performance share units activity for the nine months ended September 30, 2021:
Restricted
Stock
Deferred
Stock Units
Performance
Share Units
Weighted Average
Grant Date Fair Value
Outstanding as of December 31, 2020171,934 66,136 150,022 $18.05 
Granted111,337 8,814 147,367 15.92 
Vested(106,347)— (7,940)19.08 
Adjustment for incentive awards expected to vest— — (66,323)17.84 
Cancelled and forfeited(3,167)— (47,111)16.46 
Outstanding as of September 30, 2021173,757 74,950 176,015 $17.89