Earnings Per Common Share - Schedule of Calculation of Numerator and Denominator in Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Numerators:
Net income available to Common Stockholders—Basic	$ 262,462	$ 228,268	$ 279,123
Amounts allocated to dilutive securities	13,522	13,132	16,783
Net income available to Common Stockholders—Fully Diluted	$ 275,984	$ 241,400	$ 295,906
Denominator:
Weighted average Common Shares outstanding – Basic (shares)	182,917	181,828	180,805
Effect of dilutive securities:
Exchange of Common OP Units for Common Shares (shares)	9,739	10,484	10,934
Stock options and restricted stock (shares)	227	243	256
Weighted average Common Shares outstanding – Fully Diluted (shares)	192,883	192,555	191,995
Earnings per Common Share – Basic (usd per share)	$ 1.43	$ 1.26	$ 1.54
Earnings per Common Share – Fully Diluted (usd per share)	$ 1.43	$ 1.25	$ 1.54