The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 45
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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INTANGIBLE ASSETS: (Gross, Accumulated Amortization, Net) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Finite-Lived Intangible Assets [Line Items]
Gross carrying value of amortizable intangible assets	$ 374,088		$ 374,088		$ 85,758
Accumulated amortization	(81,330)		(81,330)		(53,604)
Net carrying value of amortizable intangible assets	292,758		292,758		32,154
Amortization of intangible assets	16,000	$ 2,600	27,700	$ 4,900
Licensing agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying value of amortizable intangible assets	2,638		2,638		2,554
Accumulated amortization	(1,771)		(1,771)		(1,589)
Net carrying value of amortizable intangible assets	867		867		965
Developed Technology Rights [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying value of amortizable intangible assets	251,074		251,074		69,828
Accumulated amortization	(56,298)		(56,298)		(40,408)
Net carrying value of amortizable intangible assets	194,776		194,776		29,420
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying value of amortizable intangible assets	69,776		69,776		13,376
Accumulated amortization	(14,205)		(14,205)		(11,607)
Net carrying value of amortizable intangible assets	55,571		55,571		$ 1,769
Order or Production Backlog [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying value of amortizable intangible assets	11,300		11,300
Accumulated amortization	(8,399)		(8,399)
Net carrying value of amortizable intangible assets	2,901		2,901
Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying value of amortizable intangible assets	5,600		5,600
Accumulated amortization	(657)		(657)
Net carrying value of amortizable intangible assets	4,943		4,943
Finite Lived Intangible Assets Excluding In Process Research And Development [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying value of amortizable intangible assets	340,388		340,388
Accumulated amortization	(81,330)		(81,330)
Net carrying value of amortizable intangible assets	259,058		259,058
In Process Research and Development [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying value of amortizable intangible assets	33,700		33,700
Accumulated amortization	0		0
Net carrying value of amortizable intangible assets	$ 33,700		$ 33,700