CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS EQUITY (USD $) In Thousands, unless otherwise specified	Total	Preferred Stock	Common Stock	Additional Paid-in- Capital	Distributions in Excess of Accumulated Earnings	Accumulated Other Comprehensive Loss	Treasury Shares At Cost	Noncontrolling Interest
Balance at Dec. 31, 2013	$ 1,171,219	$ 0	$ 1,143	$ 1,938,886	$ (669,896)	$ (3,265)	$ (140,018)	$ 44,369
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Redemption of Preferred Stock	(75,049)			(73,587)	(1,462)
Stock Based Compensation Activity	1,588		4	3,520	(1,936)
Conversion of Units to Common Stock	0		2	1,695				(1,697)
Reallocation—Additional Paid in Capital	0			48				(48)
Common Stock and Unit Distributions	(35,416)				(34,048)			(1,368)
Preferred Dividends	(1,019)				(1,019)
Net Income	31,466				30,329			1,137
Reallocation—Other Comprehensive Income	0					(6)		6
Other Comprehensive Income	246					236		10
Balance at Sep. 30, 2014	$ 1,093,035	$ 0	$ 1,149	$ 1,870,562	$ (678,032)	$ (3,035)	$ (140,018)	$ 42,409