Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2013

Carrying Value and Fair Value of Certain Financial Assets and Liabilities Measured at Fair Value on Recurring Basis

The following table provides the carrying value and fair value of certain financial assets and liabilities of the Company measured at fair value on a recurring basis as of June30, 2013 and December31, 2012:

	Carrying Value		FairValueMeasurementatJune30,2013
			Level1		Level2			Level3
		(In thousands)
		(Unaudited)
Cash and cash equivalents	$	102,732	$	102,732		$	—		$	—
Cash held in escrow		—		—			—			—
Restricted marketable securities		6		6			—			—
Ownership interest in common stock of NuPathe		15,791		15,791			—			—
Ownership interest in warrants and options of NuPathe		3,572		—			—			3,572
Available-for-sale securities		18		18			—			—
Warrant participations		417		—			—			417
Marketable securities—held-to-maturity:
Commercial paper	$	19,237	$	19,237		$	—		$	—
U.S. Treasury Bills		18,180		18,180			—			—
Government agency bonds		22,166		22,166			—			—
Certificates of deposit		17,794		17,794			—			—
Total marketable securities…………………………………………………	$	77,377	$	77,377		$	—		$	—

	Carrying Value		Fair Value Measurement atDecember 31, 2012
			Level 1		Level 2			Level 3
		(In thousands)
		(Unaudited)
Cash and cash equivalents	$	66,029	$	66,029		$	—		$	—
Cash held in escrow		6,434		6,434			—			—
Restricted marketable securities		10		10			—			—
Ownership interest in common stock of NuPathe		8,897		8,897			—			—
Ownership interest in preferred stock, warrants and options of NuPathe		12,075		—			—			12,075
Available-for-sale securities		58		58			—			—
Warrant participations		423		—			—			423
Marketable securities—held-to-maturity:
Commercial paper	$	50,932	$	50,932		$	—		$	—
U.S. Treasury Bills		21,352		21,352			—			—
Government agency bonds		45,909		45,909			—			—
Certificates of deposit		21,823		21,823			—			—
Total marketable securities…………………………………………………	$	140,016	$	140,016		$	—		$	—