Fair Value of Financial Instruments (Tables)

9 Months Ended

Sep. 30, 2015

Fair Value Disclosures [Abstract]

Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis

The following table summarizes our financial assets and liabilities measured at fair value on a recurring basis (in thousands):

	September 30, 2015
	(unaudited)
Assets:	LEVEL 1		LEVEL 2		LEVEL 3		TOTAL
Money market funds	$	117,632	$	—	$	—	$	117,632

	December 31, 2014
Assets:	LEVEL 1		LEVEL 2		LEVEL 3		TOTAL
Money market funds	$	73,098	$	—	$	—	$	73,098