Number of IPR&D projects impaired based on analysis of launch expectations and technical feasibility.

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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.

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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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- Definition

The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of an intangible asset (excluding goodwill) to fair value.

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Amount of impairment loss resulting from write-down of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit to fair value.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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Goodwill and Other Intangible Assets, Net - Additional Information (Details) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2018 USD ($) product	Jun. 30, 2017 USD ($) product	Jun. 30, 2018 USD ($) product	Jun. 30, 2017 USD ($) product	Dec. 31, 2017 USD ($)
Finite-Lived Intangible Assets
Accumulated amortization	$ 244,900	$ 220,600	$ 244,900	$ 220,600	$ 219,026
Amortization of intangibles	$ 13,182	$ 15,504	$ 26,372	$ 30,975
Number of products impaired \| product	7	1	10	3
Net impairment	$ 1,634	$ 3,058	$ 2,126	$ 3,058
IPR&D
Finite-Lived Intangible Assets
Impairment of intangible assets	61,600	$ 3,200	$ 79,473	$ 3,400	$ 24,596
Product licensing rights
Finite-Lived Intangible Assets
Intangible asset useful life			9 years		9 years 9 months 18 days
Accumulated amortization	$ 229,970		$ 229,970		$ 205,549
Number of products impaired \| product	3	2	5	2
Net impairment	$ 2,900	$ 4,700	$ 3,900	$ 4,700
Product licensing rights \| Research and Development Expense
Finite-Lived Intangible Assets
Net impairment	$ 1,300		$ 1,800
Minimum
Finite-Lived Intangible Assets
Intangible asset useful life			1 year
Maximum
Finite-Lived Intangible Assets
Intangible asset useful life			30 years