Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Consolidated Statements of Comprehensive Income
Net income (loss)	$ 979	$ (2,229)	$ 7,525	$ 9,073
Derivative instruments
Unrealized loss on derivative instruments		(8)		(56)
Reclassification adjustment for (gains) losses included in net income	(122)	390	(371)	1,149
Net gain (loss) recognized in other comprehensive income	(122)	382	(371)	1,093
Tax (expense) related to items of other comprehensive income	45	(140)	135	(401)
Other comprehensive income (loss)	(77)	242	(236)	692
Total comprehensive income (loss)	$ 902	$ (1,987)	$ 7,289	$ 9,765

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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