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STOCK BASED AND DEFERRED COMPENSATION (Tables)
 6 Months Ended
Jun. 30, 2023
Share-Based Payment Arrangement [Abstract]  
Summary of Compensation Expense and Stock Award Activity Below is a summary of stock-based compensation expense and stock award activity (dollars in thousands):
 Three Months Ended June 30,Six Months Ended June 30,
 2023202220232022
Stock-based compensation expense$4,176 $4,070 $10,401 $10,045 
Non-vested shares granted2,100 — 180,412 264,862 
Performance-based non-vested shares granted — — 42,964 40,004 
Performance-based shares issued in excess of target shares granted (1)
— — 26,167 37,146 
Restricted stock awards vested (includes performance-based awards)— — 287,171 392,160 
(1)Performance-based shares that vested and were issued as a result of performance achievement exceeding the originally established targeted number of shares related to respective performance metrics.
Summary of Additional Information Regarding Stock Plan
The following table includes additional information regarding our stock compensation plan (dollars in thousands):
 As of
 June 30, 2023December 31, 2022
Unrecognized stock-based compensation cost$36,709 $29,187 
Weighted average years expense recognition period2.121.98
Total equity awards outstanding (1)
739,109 803,769 
(1)Includes unvested restricted stock awards, restricted stock units and performance-based awards (assuming 100%/target payout).