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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.

+ References

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

+ References

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

+ References

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No definition available.

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- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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

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Fair value portion of assets, excluding financial assets and goodwill, that lack physical substance, having a projected indefinite period of benefit.

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Amount before accumulated amortization of intangible assets, excluding goodwill.

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No definition available.

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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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Intangible Assets and Goodwill (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016	Nov. 29, 2016
Intangible Assets and Goodwill
Goodwill	$ 90,976		$ 90,976		$ 90,976
Finite-lived intangible asset
Accumulated Amortization	(6,951)		(6,951)		(6,503)
Total Intangible Assets
Cost of total intangible assets	87,990		87,990		87,990
Intangible Assets, Net	81,039		81,039		81,487
Amortization expense for intangible assets	224	$ 254	$ 448	$ 507
Kolltan
Intangible Assets and Goodwill
Goodwill						$ 82,011
Amgen Amendment
Finite-lived intangible asset
Estimated Life			16 years
Cost	14,500		$ 14,500		14,500
Accumulated Amortization	(6,951)		(6,951)		(6,503)
Net	7,549		7,549		7,997
IPR&D
Indefinite-lived intangible assets:
Indefinite-lived intangible assets	73,490		73,490		$ 73,490
IPR&D \| CuraGen
Indefinite-lived intangible assets:
Indefinite-lived intangible assets	$ 11,800		$ 11,800
IPR&D \| Kolltan \| CDX-0158
Indefinite-lived intangible assets:
Fair value of Intangible assets						40,000
IPR&D \| Kolltan \| CDX-3379
Indefinite-lived intangible assets:
Fair value of Intangible assets						3,500
IPR&D \| Kolltan \| TAM
Indefinite-lived intangible assets:
Fair value of Intangible assets						$ 18,000