Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Net income (loss)	$ 42,062	$ (31,111)
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustment (CTA) gain	106,938	115,899
Unrealized loss on available-for-sale securities, net of tax effects of $(99) and $138	(265)	(304)
Unrealized loss on cash flow hedges, net of tax effects of $4,051 and $2,261	(11,727)	(6,784)
Net investment hedge CTA loss	(28,551)	(16,312)
Net actuarial gain on defined benefit plans, net of tax effects of $(6) and $(4)	11	6
Total other comprehensive income, net of tax	66,406	92,505
Comprehensive income, net of tax	108,468	$ 61,394
Unrealized gain (loss) on available-for-sale securities [Member]
Other comprehensive income (loss), net of tax:
Total other comprehensive income, net of tax	(265)
Unrealized gain (loss) on cash flow hedges [Member]
Other comprehensive income (loss), net of tax:
Total other comprehensive income, net of tax	(11,727)
Net actuarial gain (loss) on defined benefit plans [Member]
Other comprehensive income (loss), net of tax:
Total other comprehensive income, net of tax	$ 11