Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Statement Of Partners Capital [Abstract]
Net income (loss)	$ (108,173)	$ (121,510)	$ (225,900)
Other comprehensive income (loss):
Change in foreign currency translation adjustment	(76,410)	(23,480)	(27,522)
Net change on unrealized gains (losses) on available-for-sale investments, net of tax	104	267	(607)
Other comprehensive income (loss):	(76,306)	(23,213)	(28,129)
Comprehensive income (loss):	$ (184,479)	$ (144,723)	$ (254,029)