Consolidated Statements Of Comprehensive Income (Loss) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Net income (loss)	$ 69,975	$ 42,059	$ (18,076)
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments	(3,744)	(1,422)	1,039
Unrealized gains/losses on investments:
Unrealized holding gains (losses) arising during the period	(159)	(115)	18
Net gains (losses) reclassified into earnings	14	(10)	53
Net unrealized gains (losses) on investments	(145)	(125)	71
Unrealized gains/losses on hedging securities:
Unrealized hedge gains arising during the period	4,954	3,627	1,374
Net unrealized gains (losses) on hedging securities	(1,425)	1,286	(934)
Other comprehensive income (loss)	(5,314)	(261)	176
Comprehensive income (loss)	64,661	41,798	(17,900)
Product revenues
Unrealized gains/losses on hedging securities:
Net (gains) losses reclassified into earnings for revenue/expense hedge	(14,028)	(1,170)	(207)
Operating Expenses
Unrealized gains/losses on hedging securities:
Net (gains) losses reclassified into earnings for revenue/expense hedge	$ 7,649	$ (1,171)	$ (2,101)