Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Common Stock Class A Common Stock	Additional Paid-in Capital	Cumulative Distributions in Excess of Retained Earnings	Accumulated Other Comprehensive Loss	Non-controlling Interests
Beginning Balance at Dec. 31, 2020	$ 2,479,081	$ 27	$ 9	$ 2,624,997	$ (259,673)	$ (66,255)	$ 179,976
Net income	23,960				22,223		1,737
Issuance of shares of common stock	233			233
Offering costs, discounts and commissions	(500)			(500)
Stock-based compensation, net	1,769			1,769
Retirement of shares of restricted common stock	(832)			(832)
Conversion of Class A common stock to shares of common stock		9	(9)
Conversion of OP Units to shares of common stock				606			(606)
Distributions declared	(39,653)				(36,690)		(2,963)
Change in fair value of interest rate swap agreements	28,680					26,602	2,078
Realized gain on interest rate swap agreements	(41)					(39)	(2)
Adjustment to non-controlling interests				(953)		1,008	(55)
Ending Balance at Mar. 31, 2021	2,492,697	36		2,625,320	(274,140)	(38,684)	180,165
Beginning Balance at Dec. 31, 2020	2,479,081	27	$ 9	2,624,997	(259,673)	(66,255)	179,976
Net income	46,780
Conversion of OP Units to shares of common stock	18,500			18,465
Change in fair value of interest rate swap agreements	25,769
Ending Balance at Jun. 30, 2021	2,723,508	40		2,890,131	(293,622)	(41,896)	168,855
Beginning Balance at Mar. 31, 2021	2,492,697	36		2,625,320	(274,140)	(38,684)	180,165
Net income	22,820				21,214		1,606
Issuance of shares of common stock	264,799	4		264,795
Offering costs, discounts and commissions	(11,013)			(11,013)
Stock-based compensation, net	951			951
Retirement of shares of restricted common stock	(309)			(309)
Conversion of OP Units to shares of common stock				17,859			(17,859)
Distributions declared	(43,484)				(40,696)		(2,788)
Change in fair value of interest rate swap agreements	(2,911)					(2,708)	(203)
Realized gain on interest rate swap agreements	(42)					(38)	(4)
Adjustment to non-controlling interests				(7,472)		(466)	7,938
Ending Balance at Jun. 30, 2021	2,723,508	40		2,890,131	(293,622)	(41,896)	168,855
Beginning Balance at Dec. 31, 2021	2,741,138	41		2,924,168	(318,476)	(28,441)	163,846
Net income	28,441				26,758		1,683
Issuance of shares of common stock	136,826	1		136,825
Offering costs, discounts and commissions	(2,218)			(2,218)
Stock-based compensation, net of one share of restricted stock forfeited	929			929
Retirement of shares of restricted common stock	(1,301)			(1,301)
Distributions declared	(48,115)				(45,270)		(2,845)
Change in fair value of interest rate swap agreements	34,961					32,893	2,068
Realized gain on interest rate swap agreements	659					620	39
Adjustment to non-controlling interests				(1,843)		(45)	1,888
Ending Balance at Mar. 31, 2022	2,891,320	42		3,056,560	(336,988)	5,027	166,679
Beginning Balance at Dec. 31, 2021	2,741,138	41		2,924,168	(318,476)	(28,441)	163,846
Net income	63,993
Conversion of OP Units to shares of common stock				0
Change in fair value of interest rate swap agreements	53,733
Ending Balance at Jun. 30, 2022	2,966,642	43		3,125,377	(350,127)	23,397	167,952
Beginning Balance at Mar. 31, 2022	2,891,320	42		3,056,560	(336,988)	5,027	166,679
Net income	35,552				33,516		2,036
Issuance of shares of common stock	69,421	1		69,420
Offering costs, discounts and commissions	(992)			(992)
Stock-based compensation, net of eight shares of restricted stock forfeited	1,381			1,381
Conversion of OP Units to shares of common stock				0
Distributions declared	(49,507)				(46,655)		(2,852)
Change in fair value of interest rate swap agreements	18,772					17,697	1,075
Realized gain on interest rate swap agreements	695					655	40
Adjustment to non-controlling interests				(992)		(18)	974
Ending Balance at Jun. 30, 2022	$ 2,966,642	$ 43		$ 3,125,377	$ (350,127)	$ 23,397	$ 167,952