Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2017

Fair Value Disclosures [Abstract]

Summary of Asset and Liability Fair Values

The table below summarizes certain asset and liability fair values that are included within our accompanying Condensed Consolidated Balance Sheets, and their designations among three fair value measurement categories (see Note 2(xiii)):

	September 30, 2017 Fair Value Measurements
	Level 1		Level 2		Level 3		Total
Assets:
Bank certificates of deposits	$	—	$	248	$	—	$	248
Money market funds	—		225,894		—		225,894
Equity securities (Note 10)	17,751		—		—		17,751
Mutual funds	—		58		—		58
Deferred compensation investments (life insurance cash surrender value)	—		14,122		—		14,122		*
	$	17,751	$	240,322	$	—	$	258,073
Liabilities:
Deferred executive compensation liability (Note 16(f))	$	—	$	10,250	$	—	$	10,250	*
FOLOTYN development liability (Note 15)	—		—		12,426		12,426
Talon CVR - MARQIBO (Note 9(a))	—		—		4,489		4,489
Corixa Liability - ZEVALIN (Note 16(b)(i))	—		—		62		62
	$	—	$	10,250	$	16,977	$	27,227

	December 31, 2016 Fair Value Measurements
	Level 1		Level 2		Level 3		Total
Assets:
Bank certificates of deposits	$	—	$	5,991	$	—	$	5,991
Money market funds	—		128,563		—		128,563
Equity securities (Note 10)	11,533		—		—		11,533
Mutual funds	—		56		—		56
Deferred compensation investments (life insurance cash surrender value)	—		11,863		—		11,863		*
	$	11,533	$	146,473	$	—	$	158,006
Liabilities:
Deferred executive compensation liability (Note 16(f))	$	—	$	8,352	$	—	$	8,352	*
FOLOTYN development liability (Note 15)	—		—		13,130		13,130
Talon CVR - MARQIBO (Note 9(a))	—		—		1,253		1,253
Corixa Liability - ZEVALIN (Note 16(b)(i))	—		—		62		62
	$	—	$	8,352	$	14,445	$	22,797

* The reported value of "deferred compensation investments" is based on the cash surrender value of the life insurance policies, while the value of the "deferred executive compensation liability" is based on the market value of the underlying investment holdings.

Fair Value Measurement Activity for Liabilities Utilize Level 3 Inputs

The table below summarizes the 2016 and 2017 activity of our liabilities that are valued with unobservable inputs (i.e, "Level 3"):

	Fair Value Measurements of Unobservable Inputs (Level 3)
Balance at December 31, 2015	$	21,352
Settlement of Ligand Contingent Consideration liability - EVOMELA (see Note 9(b))	(6,000		)
FOLOTYN development liability (see Note 15)	(1,556		)
Ligand Contingent Consideration fair value adjustment prior to settlement - EVOMELA (see Note 9(b))	773
Talon CVR fair value adjustment - MARQIBO (see Note 9(a))	(124		)
Balance at December 31, 2016	14,445
FOLOTYN development liability (see Note 15)	(704		)
Talon CVR fair value adjustment - MARQIBO (see Note 9(a))	3,236
Balance at September 30, 2017*	$	16,977

* This amount is comprised of the current and non-current portions of “FOLOTYN development liability” and the non-current portion of “acquisition-related contingent obligations” on our accompanying Condensed Consolidated Balance Sheets.