INCOME TAXES (Net Deferred Tax Assets (Liabilities)) (Details) - USD ($) $ in Thousands		Dec. 31, 2016	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Net operating loss carryforward — U.S.		$ 15,977	$ 59,220
Net operating loss carryforward — International		18,371	18,153
Accrued expenses		72,631	61,703
Stock-based compensation and other stock based payments		60,937	77,761
Other		0	8,001
Subtotal		167,916	224,838
Discount on convertible notes		(77,845)	(112,886)
Intangible assets and other		(740,329)	(822,685)
Euro denominated debt		(117,737)	(92,230)
Fixed assets		(2,245)	(3,658)
Other		(3,958)	0
Less valuation allowance on deferred tax assets		(24,475)	(64,845)
Net deferred tax assets (liabilities)	[1]	(798,673)	(871,466)
Deferred tax assets		$ 23,700	$ 21,100

[1] (1) Includes deferred tax assets of $23.7 million and $21.1 million as of December 31, 2016 and 2015, respectively, reported in "Other assets" in the Consolidated Balance Sheets.