INCOME TAXES (Deferred Tax Assets/(Liabilities)) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014		Dec. 31, 2013
Deferred tax assets/(liabilities).
Net operating loss carryforward — U.S.	$ 176,786		$ 263,994
Net operating loss carryforward — International	22,353		21,660
Fixed assets	0		818
Accrued expenses	41,117		22,708
Stock-based compensation and other stock based payments	54,935		40,346
Other	24,456		33,530
Subtotal	319,647		383,056
Discount on convertible notes	(141,193)		(97,550)
Intangible assets and other	(856,807)		(356,669)
Euro denominated debt	(35,441)		0
Fixed assets	(3,409)		0
Less valuation allowance on deferred tax assets	(161,997)		(173,558)
Net deferred tax assets (liabilities)	$ (879,200)	[1]	$ (244,721)	[1]

[1] Includes non-current deferred tax assets of $8.5 million and $7.1 million as of December 31, 2014 and 2013, respectively, reported in "Other assets" on the Consolidated Balance Sheets and current deferred tax liabilities of $1.2 million and $38 thousand as of December 31, 2014 and 2013, respectively, reported in "Accrued expenses and other current liabilities" on the Consolidated Balance Sheets.