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Share-based Compensation and Non-Qualified Deferred Compensation Plan (Tables)
3 Months Ended
Mar. 31, 2022
Share-based Payment Arrangement, Noncash Expense [Abstract]  
Summary of Share Incentive Plans
A summary of activity under our share incentive plans for the three months ended March 31, 2022 is shown below:
Nonvested
Share
Awards
Outstanding
Weighted
Average
Exercise /  Grant Price
Nonvested share awards outstanding at December 31, 2021184,128 $107.57 
Granted124,703 163.64 
Vested(139,705)127.56 
Forfeited(1,407)128.82 
Total nonvested share awards outstanding at March 31, 2022167,719 $132.55