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Common Stock and Other Equity Related Transactions (Tables)
 12 Months Ended
Dec. 31, 2021
Equity [Abstract]  
Schedule of Stock by Class
The following table presents the shares that were issued under our ATM equity offering programs, as adjusted for the stock split, during the years ended December 31, 2021, 2020 and 2019:
Years Ended December 31,
(amounts in thousands, except share data)
202120202019
Shares of common stock sold1,660,290 — 1,010,472 
Weighted average price$84.48 $— $58.71 
Total gross proceeds$140,254 $— $59,319 
Commissions paid to sales agents$1,816 $— $771 
Schedule of Common Stock Outstanding Roll Forward The following table presents the changes in our outstanding common stock (excluding OP Units of 9,305,651, 10,479,194 and 10,491,222 outstanding at December 31, 2021, 2020 and 2019, respectively), as adjusted for the stock split:
Years Ended December 31,
202120202019
Shares outstanding at January 1,182,230,631 182,089,595 179,842,036 
Common stock issued through the ATM Equity Offering Program and its predecessor1,660,290 — 1,010,472 
Common stock issued through exchange of OP Units1,601,266 12,028 997,750 
Common stock issued through exercise of options— — 5,600 
Common stock issued through restricted stock grants162,955 151,104 193,262 
Common stock forfeitures— — — 
Common stock issued through ESPP and Dividend Reinvestment Plan32,778 32,099 41,589 
Common stock repurchased and retired(47,541)(54,195)(1,114)
Shares outstanding at December 31,185,640,379 182,230,631 182,089,595 
Schedule of Dividends Declared The following regular quarterly distributions have been declared and paid to common stockholders and Common OP Unitholders since January 1, 2019:  
Distribution Amount Per ShareFor the Quarter EndedStockholder Record DatePayment Date
$0.3063March 31, 2019March 29, 2019April 12, 2019
$0.3063June 30, 2019June 28, 2019July 12, 2019
$0.3063September 30, 2019September 27, 2019October 11, 2019
$0.3063December 31, 2019December 27, 2019January 10, 2020
$0.3425March 31, 2020March 27, 2020April 10, 2020
$0.3425June 30, 2020June 26, 2020July 10, 2020
$0.3425September 30, 2020September 25, 2020October 9, 2020
$0.3425December 31, 2020December 24, 2020January 8, 2021
$0.3625March 31, 2021March 26, 2021April 9, 2021
$0.3625June 30, 2021June 25, 2021July 9, 2021
$0.3625September 30, 2021September 24, 2021October 8, 2021
$0.3625December 31, 2021December 31, 2021January 14, 2022