Consolidated Statements of Equity - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Accumulated Deficit	Total Stockholders' Equity	Noncontrolling interests
Beginning Balance at Dec. 31, 2016	$ 1,836,787	$ 2,002	$ 2,055,365	$ (220,580)	$ 1,836,787	$ 0
Beginning balance (in shares) at Dec. 31, 2016		200,200,902
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends per common share	(100,682)		424	(101,106)	(100,682)
Issuance and vesting of common stock grants, net (in shares)		105,831
Share-based compensation	5,663	$ 1	5,662		5,663
Net income	91,877			91,877	91,877
Ending Balance at Dec. 31, 2017	1,833,645	$ 2,003	2,061,451	(229,809)	1,833,645	0
Ending balance (in shares) at Dec. 31, 2017		200,306,733
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends per common share	(103,340)		465	(103,705)	(103,240)	(100)
Issuance and vesting of common stock grants, net (in shares)		141,165
Share-based compensation	4,642	$ 1	4,531	110	4,642
Redemption of Operating Partnership units	7,784					7,784
Sale of common stock (in shares)		7,472,946
Sale of common stock	92,248	$ 75	92,173		92,248
Common stock repurchased and retired (in shares)		(3,384,359)
Common stock repurchased and retired	(32,182)	$ (34)	(32,148)		(32,182)
Net income	87,796			87,784	87,784	12
Ending Balance at Dec. 31, 2018	1,890,593	$ 2,045	2,126,472	(245,620)	1,882,897	7,696
Ending balance (in shares) at Dec. 31, 2018		204,536,485
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends per common share	(101,528)		441	(101,442)	(101,001)	(527)
Issuance and vesting of common stock grants, net (in shares)		95,704
Share-based compensation	5,900	$ 1	5,176	0	5,177	723
Common stock repurchased and retired (in shares)		(4,428,947)
Common stock repurchased and retired	(42,828)	$ (44)	(42,784)		(42,828)
Net income	$ 184,211			183,487	183,487	724
Redemption of Operating Partnership units (in shares)	4,553
Redemption of Operating Partnership units	$ 0		44		44	(44)
Ending Balance at Dec. 31, 2019	$ 1,921,062	$ 2,002	$ 2,089,349	$ (178,861)	$ 1,912,490	$ 8,572
Ending balance (in shares) at Dec. 31, 2019		200,207,795