Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2015

Fair Value Disclosures [Abstract]

Assets Measured at Fair Value on a Recurring Basis

Assets Measured at Fair Value on a Recurring Basis

			Fair Value Measurements Using
Description	December 31, 2014		Quoted Prices for Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total (Losses)
	(in thousands)
Cash and cash equivalents	$	42,492	$	42,492	$	—	$	—	$	—

			Fair Value Measurements Using
Description	March 31, 2015		Quoted Prices for Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total (Losses)
	(in thousands)
Cash and cash equivalents	$	46,281	$	46,281	$	—	$	—	$	—