Amortization and Impairment of Acquired Intangible Assets

No definition available.

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- Definition

Indefinite lived intangible assets useful life.

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Intangible assets and goodwill additional.

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No definition available.

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- Definition

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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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
-Topic 230
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- Definition

Amount of gain (loss) recognized on the income statement for financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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

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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- Definition

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

+ References

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- Definition

Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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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.

+ References

No definition available.

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- Definition

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

+ References

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- Definition

Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

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- Definition

The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of a finite-lived intangible asset to fair value.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit.

+ References

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- Definition

Amount before accumulated amortization of intangible assets, excluding goodwill.

+ References

No definition available.

+ Details

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- Definition

Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.

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- Definition

Amount awarded to other party in judgment or settlement of litigation.

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No definition available.

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Amount of litigation expense, including but not limited to legal, forensic, accounting, and investigative fees.

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Intangible Assets and Goodwill (Details) - USD ($) $ in Millions	3 Months Ended					12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Dec. 31, 2017	Mar. 31, 2017	Dec. 31, 2016	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Finite-Lived Intangible Assets [Line Items]
Amortization and impairment of acquired intangible assets						$ 747.3	$ 814.7	$ 385.6
Increase to goodwill						1,080.1	1,267.3
Intangible assets
Total intangible assets, gross	$ 7,727.3		$ 8,264.6			7,727.3	8,264.6
Accumulated Amortization	(4,607.3)		(4,385.0)			(4,607.3)	(4,385.0)
Intangible assets, net	3,120.0		3,879.6			3,120.0	3,879.6
Intangible Assets and Goodwill (Additional Textual)
Expected future amortization expense, 2019	270.0					270.0
Expected future amortization expense, 2020	290.0					290.0
Expected future amortization expense, 2021	250.0					250.0
Expected future amortization expense, 2022	250.0					250.0
Expected future amortization expense, 2023	230.0					230.0
Amortization of acquired intangible assets						381.2	455.3	373.4
Impairment of out-licensed patent								12.2
Contingent Consideration						12.3	(62.7)	(14.8)
Payment made to Forward Pharma				$ 1,250.0
TECFIDERA litigation settlement charge					$ 454.8	0.0	0.0	$ 454.8
Out-licensed patents
Intangible assets
Cost	543.3		543.3			543.3	543.3
Accumulated Amortization	(542.3)		(535.6)			(542.3)	(535.6)
Net	1.0		7.7			$ 1.0	7.7
Out-licensed patents \| Minimum
Intangible assets
Estimated life, (In Years)						13 years
Out-licensed patents \| Maximum
Intangible assets
Estimated life, (In Years)						23 years
Developed technology
Intangible assets
Cost	3,005.3		3,005.3			$ 3,005.3	3,005.3
Accumulated Amortization	(2,734.8)		(2,689.0)			(2,734.8)	(2,689.0)
Net	270.5		316.3			$ 270.5	316.3
Developed technology \| Minimum
Intangible assets
Estimated life, (In Years)						15 years
Developed technology \| Maximum
Intangible assets
Estimated life, (In Years)						23 years
Acquired and in-licensed rights and patents
Intangible assets
Cost	3,638.7		3,971.4			$ 3,638.7	3,971.4
Accumulated Amortization	(1,330.2)		(1,160.4)			(1,330.2)	(1,160.4)
Net	2,308.5		2,811.0			$ 2,308.5	2,811.0
Acquired and in-licensed rights and patents \| Minimum
Intangible assets
Estimated life, (In Years)						4 years
Acquired and in-licensed rights and patents \| Maximum
Intangible assets
Estimated life, (In Years)						18 years
In-process research and development
Intangible assets
Indefinite lived intangible assets useful life						Indefinite
Cost and net	476.0		680.6			$ 476.0	680.6
Accumulated Amortization	0.0		0.0			$ 0.0	0.0
Intangible Assets and Goodwill (Additional Textual)
Amortization of acquired intangible assets		$ 189.3
Impairment of out-licensed patent		189.3
Trademarks and trade names
Intangible assets
Indefinite lived intangible assets useful life						Indefinite
Cost and net	64.0		64.0			$ 64.0	64.0
Accumulated Amortization	0.0		0.0			0.0	$ 0.0
AVONEX \| Developed technology
Intangible assets
Net	265.0					265.0
TYSABRI \| Acquired and in-licensed rights and patents
Intangible assets
Net	2,027.1					2,027.1
ZINBRYTA
Intangible Assets and Goodwill (Additional Textual)
Impairment of out-licensed patent			$ 31.2
TECFIDERA
Intangible Assets and Goodwill (Additional Textual)
Amortization of acquired intangible assets	176.8			328.2
Impairment of out-licensed patent	176.8			328.2
TECFIDERA \| Acquired and in-licensed rights and patents
Intangible assets
Net	71.0			795.2		$ 71.0
Intangible Assets and Goodwill (Additional Textual)
Amortization of acquired intangible assets	176.8			$ 328.2
PLSR \| In-process research and development
Intangible Assets and Goodwill (Additional Textual)
Amortization of acquired intangible assets		60.0
TGN
Intangible Assets and Goodwill (Additional Textual)
Contingent Consideration	$ 80.6	89.6
TGN \| In-process research and development
Intangible assets
Cost and net		41.8
Intangible Assets and Goodwill (Additional Textual)
Amortization of acquired intangible assets		$ 129.3