Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2015

Fair Value Disclosures [Abstract]

Assets Measured At Fair Value

The following tables present the Company’s assets that are measured at fair value on a recurring basis:

	March 31, 2015
(in thousands)	Quoted Market Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total Fair Value Measurements
Short-term investments:
Fixed income mutual fund	$	2,492	$	—	$	—	$	2,492
U.S. government and agency securities	—		1,313		—		1,313
Corporate obligations	—		12,018		—		12,018
Other fixed income securities	—		871		—		871
International securities	—		11,274		—		11,274
Total	$	2,492	$	25,476	$	—	$	27,968

	December 31, 2014
(in thousands)	Quoted Market Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total Fair Value Measurements
Short-term investments:
Fixed income mutual fund	$	2,492	$	—	$	—	$	2,492
U.S. government and agency securities	—		951		—		951
Corporate obligations	—		22,145		—		22,145
Other fixed income securities	—		491		—		491
International securities	—		10,311		—		10,311
Municipal obligations	—		426		—		426
Total	$	2,492	$	34,324	$	—	$	36,816