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SHARE-BASED COMPENSATION (Tables)
12 Months Ended
Dec. 31, 2021
Share-based Payment Arrangement [Abstract]  
Summary of Activity of Non-Performance Based and Performance Based Options
A summary of the activity of non-performance-based options as of and for the years ended December 31, 2021, and 2020 is presented below.
20212020
SharesWeighted Average Exercise PriceWeighted Average Contractual Term
Aggregate Intrinsic Value
$ (000)
SharesWeighted Average Exercise PriceWeighted Average Contractual TermAggregate Intrinsic Value
$ (000)
Under option, beginning of year279,695 $28.13 387,193 $26.51 
Exercised(160,960)27.35 $3,406 (107,498)22.26 $1,128 
Forfeited(1,600)22.34 — — 
Under option, end of year117,135 $28.79 0.66$2,389 279,695 $28.13 1.26$2,780 
Exercisable at end of year117,135 $28.79 0.66$2,389 279,695 $28.13 1.26$2,780 
Summary of the Status of the Company's Restricted Stock Awards
A summary of the status of the Company’s restricted stock awards as of and for the years ended December 31, 2021, and 2020 is presented below.
20212020
SharesWeighted Average Grant Date Fair ValueSharesWeighted Average Grant Date Fair Value
Nonvested shares at beginning of year258,753 $33.21 182,401 $44.04 
Granted99,308 47.35 164,476 25.17 
Vested(129,497)35.85 (75,874)40.94 
Forfeited(2,695)37.32 (12,250)38.99 
Nonvested shares at end of year225,869 38.06 258,753 33.21 
Schedule of Nonvested Performance-based Units Activity
A summary of the Company's nonvested PSUs for the years ended December 31, 2021, and 2020 is presented below:
20212020
SharesWeighted Average Grant Date Fair ValueSharesWeighted Average Grant Date Fair Value
Nonvested units at beginning of year76,792 $25.19 — $— 
Granted48,580 47.53 76,792 25.19 
Forfeited(4,102)35.80 — — 
Nonvested units at end of year121,270 32.71 76,792 25.19