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Share-Based Compensation (Tables)
 3 Months Ended
Mar. 31, 2021
Share-based Payment Arrangement [Abstract]  
Summary of Stock Option Activity under Plan The following table summarizes stock option activity under the Plan for the three months ended March 31, 2021 and 2020:
For the Three Months Ended
March 31,
 20212020
Options outstanding at beginning of period1,090,300 1,529,800 
Granted— — 
Exercised(60,000)(83,600)
Forfeited— (1,600)
Options outstanding at end of period1,030,300 1,444,600 
Options exercisable at end of period992,800 1,296,750 
Summary of Restricted Share Units Activity Under Plan The following table summarizes RSU activity under the Plan for the three months ended March 31, 2021 and 2020:
For the Three Months Ended
March 31,
 20212020
RSUs outstanding at beginning of period651,537 599,109 
Awarded453,560 422,285 
Vested(164,203)(181,213)
Forfeited(12,399)(19,010)
RSUs outstanding at end of period928,495 821,171 
Summary of Performance Share Units Activity Under Plan The following table summarizes PSU activity under the Plan for the three months ended March 31, 2021 and 2020:
For the Three Months Ended
March 31,
 20212020
PSUs outstanding at beginning of period— — 
Awarded92,319 — 
Vested— — 
Forfeited— — 
PSUs outstanding at end of period92,319 — 
Summary of Activity in Noncash Share-Based Compensation Expense The following table summarizes the activity that relates to the Company’s noncash share-based compensation expense for the three months ended March 31, 2021 and 2020 (in thousands):
For the Three Months Ended
March 31,
20212020
General and administrative expense$4,342 $1,369 
Property management expenses999 439 
Acquisition and other transaction costs2,769 — 
Total noncash share-based compensation expense$8,110 $1,808