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Stockholders’ Equity of the Company and Partners' Capital of the Operating Partnership (Tables)
 12 Months Ended
Dec. 31, 2019
Stockholders' Equity Note [Abstract]  
Common Stock and Units Roll-Forward
The following table is a roll-forward of the Company's shares of common stock outstanding and the Operating Partnership's Units outstanding, including equity compensation awards which are discussed Note 11, for the three years ended December 31, 2019: 
 
Shares of
Common Stock
Outstanding
 
General Partner and Limited Partner Units Outstanding
Balance at December 31, 2016
117,107,746

 
121,147,121

Issuance of Common Stock/Contribution of General Partner Units (A)
2,560,000

 
2,560,000

Issuance of Restricted Stock/Restricted Unit Awards
275,793

 
275,793

Repurchase and Retirement of Restricted Stock/Restricted Unit Awards
(91,513
)
 
(91,513
)
Conversion of Limited Partner Units (B)
31,154

 
—

Balance at December 31, 2017
119,883,180

 
123,891,401

Issuance of Common Stock/Contribution of General Partner Units (A)
4,800,000

 
4,800,000

Issuance of Restricted Stock/Restricted Unit Awards
227,059

 
227,059

Vesting of Performance units (as defined in Note 11)
150,772

 
150,772

Repurchase and Retirement of Restricted Stock/Restricted Unit Awards
(104,301
)
 
(104,301
)
Conversion of Limited Partner Units (B)
1,350,721

 
—

Retirement of Limited Partner Units (C)
—

 
(33,333
)
Balance at December 31, 2018
126,307,431

 
128,931,598

Issuance of Service Awards and Performance Awards (as defined in Note 11)
109,353

 
406,569

Vesting of Performance units (as defined Note 11)
169,033

 
169,033

Repurchase and Retirement of Service Awards and Performance Awards (as defined in Note 11)
(76,855
)
 
(89,978
)
Conversion of Limited Partner Units (B)
485,516

 
—

Balance at December 31, 2019
126,994,478

 
129,417,222
Summary of Dividends/Distributions
The following table summarizes dividends/distributions accrued during the past three years: 
 
2019 Total
Dividend/
Distribution
 
2018 Total
Dividend/
Distribution
 
2017 Total
Dividend/
Distribution
Common Stock/Operating Partnership Units
$
119,522

 
$
111,478

 
$
104,106