Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Statement of Comprehensive Income [Abstract]
Net income	$ 44,711	$ 59,459	$ 13,600	$ 135,911
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustment (“CTA”) gain (loss)	(298,361)	69,443	(182,462)	(76,869)
Unrealized gain on available-for-sale securities	1,199	17	895	120
Unrealized gain (loss) on cash flow hedges	14,726	(14,290)	7,942	(3,734)
Net investment hedge CTA gain (loss)	55,196	(10,389)	38,884	(10,389)
Net actuarial gain on defined benefit plans	8	83	14	142
Total other comprehensive income (loss), net of tax	(227,232)	44,864	(134,727)	(90,730)
Comprehensive income (loss), net of tax	$ (182,521)	$ 104,323	$ (121,127)	$ 45,181