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Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2017

Fair Value Measurements

Schedule of financial assets subject to fair value measurements

		As of December 31, 2016			Level 1		Level 2			Level 3
		(In thousands)
Assets:
Money market funds and cash equivalents		$	20,445		—		$	20,445		—
Marketable securities		$	147,315		—		$	147,315		—
		$	167,760		—		$	167,760		—
Liabilities:
Kolltan acquisition contingent consideration		$	44,200		—		—			$	44,200
		$	44,200		—		—			$	44,200

		As of March 31, 2017			Level 1		Level 2			Level 3
		(In thousands)
Assets:
Money market funds and cash equivalents		$	28,572		—		$	28,572		—
Marketable securities		$	124,526		—		$	124,526		—
		$	153,098		—		$	153,098		—
Liabilities:
Kolltan acquisition contingent consideration		$	47,600		—		—			$	47,600
		$	47,600		—		—			$	47,600

Schedule of acquisition-related contingent consideration

The following table represents a roll-forward of our acquisition-related contingent consideration (in thousands):

		Three Months Ended March 31, 2017
Balance at beginning of period		$	44,200
Milestone payments		—
Changes in fair value		3,400
Balance at end of period		$	47,600

X

- Definition

Tabular disclosure of assets, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19190-110258

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258

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- References

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X

- Definition

Tabular disclosure of contingent payment arrangements including the terms that will result in payment and the accounting treatment that will be followed if such contingencies occur, including the potential impact on earnings per share if contingencies are to be settled in common stock of the entity. The description also may include the period over which amounts are expected to be paid, and changes in the amount since the previous reporting period. This also includes contingent options and commitments.

+ References

No definition available.

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