Fair-Value Measurements (Tables)

3 Months Ended

Mar. 31, 2014

Fair Value Disclosures [Abstract]

Financial Assets and Liabilities Measured at Fair Value on Recurring Basis

Our fair-value hierarchy for our financial assets and liabilities measured at fair value on a recurring basis are as follows:

	March 31, 2014
	Level 1		Level 2		Level 3		Total
	(In thousands)
Assets:
Money-market funds classified as cash equivalents	$	—	$	—	$	—	$	—
Money-market funds classified as non-current restricted cash	679		—		—		679
Money-market funds classified as short-term investments	51,622		—		—		51,622
Total	$	52,301	$	—	$	—	$	52,301

	December 31, 2013
	Level 1		Level 2		Level 3		Total
	(In thousands)
Assets:
Money-market funds classified as cash equivalents	$	213	$	—	$	—	$	213
Money-market funds classified as non-current restricted cash	679		—		—		679
Money-market funds classified as short-term investments	12,717		—		—		12,717
Total	$	13,609	$	—	$	—	$	13,609