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.

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

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

+ References

+ Details

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Namespace Prefix:	us-gaap_
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Balance Type:	debit
Period Type:	instant

- References

No definition available.

+ Details

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- Details

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Goodwill and Intangible Assets - Fair Value Determination (Details) - USD ($) $ in Thousands		1 Months Ended
	Jun. 02, 2016	Aug. 31, 2017	Mar. 31, 2018	Dec. 31, 2017
Goodwill and Intangible Assets
Finite-lived intangible assets			$ 156,429	$ 159,905
DUZALLO \| Developed Technology
Goodwill and Intangible Assets
Finite-lived intangible assets		$ 145,100
Estimated useful life		12 years
Accumulated amortization of intangible assets			7,600
ZURAMPIC \| Developed Technology
Goodwill and Intangible Assets
Estimated useful life	13 years
Accumulated amortization of intangible assets			$ 3,100