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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Weighted-Average Shares Outstanding (Details) - shares
shares in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Accounting Policies [Abstract]        
Weighted average number of shares outstanding - basic (shares) 32,482 32,607 32,519 32,658
Effect of dilutive securities:        
Stock options (shares) 38 113 50 135
Non-vested stock and stock units (shares) 96 179 111 228
Weighted average number of shares outstanding - diluted (shares) 32,616 32,899 32,680 33,021
Anti-dilutive securities (shares) 202 141 276 82