GOODWILL AND INTANGIBLE ASSETS (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2012	Dec. 31, 2011
GOODWILL AND INTANGIBLE ASSETS [Abstract]
Goodwill	$ 140,325	$ 0
Expected Future Annual Amortization Expense [Abstract]
2012, remainder thereof	13,638
2013	24,942
2014	22,280
2015	16,192
2016	15,340
Thereafter	92,465
Total	184,857
Finite-Lived Intangible Assets [Line Items]
Beginning carrying value of finite-lived intangible assets		113,695
Finite-lived Intangible Assets Acquired	161,247
Ending carrying value of finite-lived intangible assets	274,942
Finite-Lived Intangible Assets, Accumulated Amortization	(84,170)
Amortization of Intangible Assets	(5,915)
Finite-Lived Intangible Assets, Accumulated Amortization	(90,085)
Finite-Lived Intangible Assets, Net, Beginning Balance	29,525
Finite-Lived Intangible Assets, Net, Ending Balance	184,857
Customer Relationships [Member]
Expected Future Annual Amortization Expense [Abstract]
Total	89,604
Finite-Lived Intangible Assets [Line Items]
Beginning carrying value of finite-lived intangible assets		14,600
Finite-lived Intangible Assets Acquired	85,700
Ending carrying value of finite-lived intangible assets	100,300
Finite-Lived Intangible Assets, Accumulated Amortization	(9,510)
Amortization of Intangible Assets	(1,186)
Finite-Lived Intangible Assets, Accumulated Amortization	(10,696)
Finite-Lived Intangible Assets, Net, Beginning Balance	5,090
Finite-Lived Intangible Assets, Net, Ending Balance	89,604
Finite-Lived Intangible Asset, Weighted Average Period before Next Renewal or Extension	11 years
Developed technologies [Member]
Expected Future Annual Amortization Expense [Abstract]
Total	53,760
Finite-Lived Intangible Assets [Line Items]
Beginning carrying value of finite-lived intangible assets		17,653
Finite-lived Intangible Assets Acquired	50,809
Ending carrying value of finite-lived intangible assets	68,462
Finite-Lived Intangible Assets, Accumulated Amortization	(13,179)
Amortization of Intangible Assets	(1,523)
Finite-Lived Intangible Assets, Accumulated Amortization	(14,702)
Finite-Lived Intangible Assets, Net, Beginning Balance	4,474
Finite-Lived Intangible Assets, Net, Ending Balance	53,760
Finite-Lived Intangible Asset, Weighted Average Period before Next Renewal or Extension	10 years
License fees [Member]
Expected Future Annual Amortization Expense [Abstract]
Total	23,126
Finite-Lived Intangible Assets [Line Items]
Beginning carrying value of finite-lived intangible assets		79,142
Finite-lived Intangible Assets Acquired	7,338
Ending carrying value of finite-lived intangible assets	86,480
Finite-Lived Intangible Assets, Accumulated Amortization	(60,355)
Amortization of Intangible Assets	(2,999)
Finite-Lived Intangible Assets, Accumulated Amortization	(63,354)
Finite-Lived Intangible Assets, Net, Beginning Balance	18,787
Finite-Lived Intangible Assets, Net, Ending Balance	23,126
Finite-Lived Intangible Asset, Weighted Average Period before Next Renewal or Extension	14 years
Other Contractual Agreements [Member]
Expected Future Annual Amortization Expense [Abstract]
Total	2,780
Finite-Lived Intangible Assets [Line Items]
Beginning carrying value of finite-lived intangible assets		0
Finite-lived Intangible Assets Acquired	2,800
Ending carrying value of finite-lived intangible assets	2,800
Finite-Lived Intangible Assets, Accumulated Amortization	0
Amortization of Intangible Assets	(20)
Finite-Lived Intangible Assets, Accumulated Amortization	(20)
Finite-Lived Intangible Assets, Net, Beginning Balance	0
Finite-Lived Intangible Assets, Net, Ending Balance	2,780
Finite-Lived Intangible Asset, Weighted Average Period before Next Renewal or Extension	2 years
Trademarks and tradenames [Member]
Expected Future Annual Amortization Expense [Abstract]
Total	15,587
Finite-Lived Intangible Assets [Line Items]
Beginning carrying value of finite-lived intangible assets		2,300
Finite-lived Intangible Assets Acquired	14,600
Ending carrying value of finite-lived intangible assets	16,900
Finite-Lived Intangible Assets, Accumulated Amortization	(1,126)
Amortization of Intangible Assets	(187)
Finite-Lived Intangible Assets, Accumulated Amortization	(1,313)
Finite-Lived Intangible Assets, Net, Beginning Balance	1,174
Finite-Lived Intangible Assets, Net, Ending Balance	$ 15,587
Finite-Lived Intangible Asset, Weighted Average Period before Next Renewal or Extension	5 years