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STOCK BASED AND DEFERRED COMPENSATION (Tables)
 9 Months Ended
Sep. 30, 2024
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 September 30,Nine Months Ended September 30,
 2024202320242023
Stock-based compensation expense$8,473 $6,156 $19,305 $16,557 
Non-vested shares granted1,487 4,151 142,152 184,563 
Performance-based non-vested shares granted 2,275 — 39,973 42,964 
Performance-based shares issued in excess of target shares granted (1)
— — 15,978 26,167 
Restricted stock awards vested (includes performance-based awards)3,608 4,335 252,226 291,526 
(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
 September 30, 2024December 31, 2023
Unrecognized stock-based compensation cost$36,262 $27,791 
Weighted average years expense recognition period1.951.94
Total equity awards outstanding (1)
628,091 703,415 
(1)Includes unvested restricted stock units and performance-based awards (assuming 100%/target payout).