CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)
Net income (loss)	$ 10,509	$ 6,053	$ (23,333)
Other comprehensive income (loss):
Interest rate swap gain (loss), net of reclassifications to earnings	(1,679)	(10,891)	4,525
Amortization of payments to terminate interest rate swaps	898	10,251	1,659
Total other comprehensive income (loss)	(781)	(640)	6,184
Comprehensive income (loss)	$ 9,728	$ 5,413	$ (17,149)