CONSOLIDATED STATEMENTS OF EQUITY - 9 months ended Sep. 30, 2017 - USD ($) $ in Thousands	Preferred Stock	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Income (Loss)	Distributions in Excess of Net Income	Total Stockholders' Equity	Noncontrolling Interests	Total
Balance at Dec. 31, 2016	$ 115,000	$ 334	$ 438,531	$ (101)	$ (118,038)	$ 435,726	$ 161,360	$ 597,086
Balance (in shares) at Dec. 31, 2016		33,896,771
Increase (Decrease) in Stockholders' Equity
Redemption of noncontrolling interests			167			167	(167)
Redemption of noncontrolling interests (in shares)		15,011
Issuance of stock awards, net of forfeitures (in shares)		131,961
Exercise of stock options, net of settlements		$ 2	4,818			4,820		4,820
Exercise of stock options, net of settlements (in shares)		197,761
Share-based compensation		$ 2	7,078			7,080		7,080
Dividends declared on preferred stock					(6,253)	(6,253)		(6,253)
Dividends and distributions					(88,581)	(88,581)	(35,994)	(124,575)
Net income					53,946	53,946	19,537	73,483
Other comprehensive income (loss)				415		415	170	585
Balance at Sep. 30, 2017	$ 115,000	$ 338	$ 450,594	$ 314	$ (158,926)	$ 407,320	$ 144,906	$ 552,226
Balance (in shares) at Sep. 30, 2017		34,241,504