Consolidated Statement of Equity (USD $) In Thousands, except Share data	Total	Common Shares	Additional Paid-in Capital	Accumulated dividends in excess of net income	Noncontrolling Interests - Unitholders in the Operating Partnership
Beginning Balance at Dec. 31, 2012	$ 685,729	$ 397	$ 663,589	$ (25,625)	$ 47,368
Beginning Balance (in shares) at Dec. 31, 2012	39,664,212	39,664,212
Net income	4,865			3,370	1,495
Dividends declared and paid	(12,114)			(8,329)	(3,785)
Stock-based compensation	676		676
Ending Balance at Mar. 31, 2013	$ 679,156	$ 397	$ 664,265	$ (30,584)	$ 45,078
Ending Balance (in shares) at Mar. 31, 2013	39,664,212	39,664,212