Milestone Payments

No definition available.

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- Definition

Product Rights [Line Items]

+ References

No definition available.

+ Details

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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.

+ Details

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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

+ Details

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Period Type:	instant

- Definition

Remaining amortization period 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.

+ Details

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- Definition

Amount of increase (decrease) to assets, excluding financial assets and goodwill, lacking physical substance with a finite life for foreign currency translation adjustments and purchase accounting adjustments.

+ References

No definition available.

+ Details

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Balance Type:	debit
Period Type:	duration

- 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
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 3
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16373-109275

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount before accumulated amortization of intangible assets, excluding goodwill.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- 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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph ((a)(1),(b))
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274

+ Details

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- Details

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Balance Sheet Account Detail - Components of Intangible Assets Net of Accumulated Amortization (Details) - USD ($) $ in Thousands		1 Months Ended	3 Months Ended	12 Months Ended
	May 29, 2013	Nov. 30, 2018	Mar. 31, 2015	Dec. 31, 2018	Dec. 31, 2017
Product Rights [Line Items]
Historical Cost				$ 308,318	$ 305,668
Accumulated Amortization				(185,132)	(157,855)
Foreign Currency Translation				(3,409)	(2,471)
Impairment				(8,183)	(8,183)
Net Amount				111,594	137,159
MARQIBO IPR&D (NHL and further ALL indications) [Member]
Product Rights [Line Items]
Historical Cost				17,600	17,600
Accumulated Amortization				0	0
Foreign Currency Translation				0	0
Impairment				0	0
Net Amount				17,600	17,600
EVOMELA Distribution Rights [Member]
Product Rights [Line Items]
Historical Cost				7,700	7,700
Accumulated Amortization				(1,629)	(1,037)
Foreign Currency Translation				0	0
Impairment				0	0
Net Amount				$ 6,071	6,663
Full Amortization Period (months)				156 months
Remaining Amortization Period (months)				123 months
KHAPZORY Distribution Rights [Member]
Product Rights [Line Items]
Historical Cost				$ 2,650
Accumulated Amortization				(379)
Foreign Currency Translation				0
Impairment				0
Net Amount				$ 2,271
Full Amortization Period (months)				14 months
Remaining Amortization Period (months)				12 months
BELEODAQ distribution rights [Member]
Product Rights [Line Items]
Historical Cost				$ 25,000	25,000
Accumulated Amortization				(8,438)	(6,563)
Foreign Currency Translation				0	0
Impairment				0	0
Net Amount				$ 16,562	18,437
Full Amortization Period (months)				160 months
Remaining Amortization Period (months)				106 months
MARQIBO distribution rights [Member]
Product Rights [Line Items]
Historical Cost				$ 26,900	26,900
Accumulated Amortization				(21,501)	(17,182)
Foreign Currency Translation				0	0
Impairment				0	0
Net Amount				$ 5,399	9,718
Full Amortization Period (months)				81 months
Remaining Amortization Period (months)				18 months
FOLOTYN distribution rights [Member]
Product Rights [Line Items]
Historical Cost				$ 118,400	118,400
Accumulated Amortization				(67,187)	(54,111)
Foreign Currency Translation				0	0
Impairment	$ (1,000)			0	0
Net Amount				$ 51,213	64,289
Full Amortization Period (months)				152 months
Remaining Amortization Period (months)				47 months
ZEVALIN distribution rights [Member] \| United States [Member]
Product Rights [Line Items]
Historical Cost				$ 41,900	41,900
Accumulated Amortization				(41,031)	(37,557)
Foreign Currency Translation				0	0
Impairment				0	0
Net Amount				$ 869	4,343
Full Amortization Period (months)				123 months
Remaining Amortization Period (months)				3 months
ZEVALIN distribution rights [Member] \| Ex-U.S. [Member]
Product Rights [Line Items]
Historical Cost				$ 23,490	23,490
Accumulated Amortization				(18,071)	(17,232)
Foreign Currency Translation				(3,409)	(2,471)
Impairment				0	0
Net Amount				$ 2,010	3,787
Full Amortization Period (months)				96 months
Remaining Amortization Period (months)				15 months
FUSILEV distribution rights [Member]
Product Rights [Line Items]
Historical Cost				$ 16,778	16,778
Accumulated Amortization				(9,618)	(9,618)
Foreign Currency Translation				0	0
Impairment				(7,160)	(7,160)
Net Amount				$ 0	0
Full Amortization Period (months)				56 months
Remaining Amortization Period (months)				0 months
FOLOTYN out-License [Member]
Product Rights [Line Items]
Historical Cost				$ 27,900	27,900
Accumulated Amortization				(17,278)	(14,555)
Foreign Currency Translation				0	0
Impairment				(1,023)	(1,023)
Net Amount				$ 9,599	$ 12,322
Full Amortization Period (months)				110 months
Remaining Amortization Period (months)				43 months
KHAPZORY [Member]
Product Rights [Line Items]
Milestone payments		$ 2,700
Fusilev [Member]
Product Rights [Line Items]
Impairment			$ (7,200)