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INCENTIVE STOCK PLANS - Summary of Restricted Shares (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
May 08, 2020
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Restricted Stock        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Restricted shares granted (in shares)   22,140 100,452 24,592
Weighted average price of restricted shares granted (in dollars per share)   $ 37.36 $ 23.15 $ 30.90
Intrinsic value of restricted stock outstanding   $ 3,062 $ 4,666 $ 5,540
Grant date fair value of restricted stock vested   3,121 2,755 5,339
Cash used to purchase common shares from current and former employees to pay withholding tax requirements on restricted shares vested   $ 869 $ 566 $ 1,610
Restricted Stock Units (RSUs)        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Restricted shares granted (in shares)   129,290 171,409 103,634
Weighted average price of restricted shares granted (in dollars per share)   $ 33.59 $ 22.58 $ 31.51
Intrinsic value of restricted stock outstanding   $ 15,095 $ 7,801 $ 3,351
Grant date fair value of restricted stock vested   493 218 2
Cash used to purchase common shares from current and former employees to pay withholding tax requirements on restricted shares vested   $ 189 $ 47 $ 1
Replacement Restricted Stock Awards        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Restricted shares granted (in shares) 69,176   69,176