Condensed Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2016	Mar. 31, 2015
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (6,601)	$ 906
Change in unrealized gains and losses related to cash flow hedges:
Gain (loss) recognized in accumulated other comprehensive loss, net	(74)	404
Loss reclassified from accumulated other comprehensive loss, net to the statement of operations	331	23
Change in unrealized gains and losses related to available-for-sale investments:
Gain recognized in accumulated other comprehensive loss, net	547	142
Gain reclassified from accumulated other comprehensive loss, net to the statement of operations	(1)	0
Other comprehensive income, before tax	803	569
Income tax expense related to items of accumulated other comprehensive loss, net	(295)	(475)
Comprehensive income (loss)	$ (6,093)	$ 1,000

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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Amount before tax and reclassification adjustments of unrealized holding gain (loss) on available-for-sale securities and unrealized holding gain (loss) related to transfers of securities into the available-for-sale classification and out of the held-to-maturity classification.

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