Stockholders’ Equity of the Company and Partners' Capital of the Operating Partnership (Tables)

12 Months Ended

Dec. 31, 2020

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, 2020: 

	Shares of Common Stock Outstanding	General Partner and Limited Partner Units Outstanding
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 in 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
Issuance of Common Stock/Contribution of General Partner Units (D)	1,842,281	1,842,281
Issuance of Service Awards and Performance Awards (as defined in Note 11)	—	464,975
Vesting of Performance Units (as defined Note 11)	107,752	107,752
Repurchase and Retirement of Service Awards and Performance Awards (as defined in Note 11)	(65,709)	(67,676)
Conversion of Limited Partner Units (B)	172,610	—
Balance at December 31, 2020	129,051,412	131,764,554

Summary of Dividends/Distributions

The following table summarizes dividends/distributions accrued during the past three years: 

	2020 Total Dividend/ Distribution		2019 Total Dividend/ Distribution		2018 Total Dividend/ Distribution
Common Stock/Operating Partnership Units	$	130,943	$	119,522	$	111,478