INCOME TAXES (Net deferred tax Assets/(Liabilities)) (Details) - USD ($) $ in Thousands		Dec. 31, 2015	Dec. 31, 2014
Deferred tax assets/(liabilities).
Net operating loss carryforward — U.S.		$ 59,220	$ 176,786
Net operating loss carryforward — International		18,153	22,353
Accrued expenses		61,703	41,117
Stock-based compensation and other stock based payments		77,761	54,935
Other		8,001	24,456
Subtotal		224,838	319,647
Discount on convertible notes		(112,886)	(141,193)
Intangible assets and other		(822,685)	(856,807)
Euro denominated debt		(92,230)	(35,441)
Fixed assets		(3,658)	(3,409)
Less valuation allowance on deferred tax assets		(64,845)	(161,997)
Net deferred tax assets (liabilities)	[1]	$ (871,466)	$ (879,200)

[1] (1) Includes deferred tax assets of $21.1 million and $20.9 million as of December 31, 2015 and 2014, respectively, reported in "Other assets" in the Consolidated Balance Sheets.