Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2014

Fair Value Disclosures [Abstract]

Schedule of assets and liabilities measured at fair value on recurring basis

The following tables present financial assets and liabilities at September 30, 2014 and December 31, 2013 for which the Company measures fair value on a recurring basis, by level, within the fair value hierarchy:

September 30, 2014	Total		Level 1		Level 2		Level 3		Valuation Technique
Assets
Money market mutual funds	$	6,211	$	6,211	$	—	$	—	(a)
Government agency bonds	3,493		3,493		—		—		(a)
United States treasuries	4,008		4,008		—		—		(a)
Municipal bonds	3,240		3,240		—		—		(a)
Corporate notes	4,664		4,664		—		—		(a)
Certificates of deposit	2,864		2,864		—		—		(a)
Foreign currency forward contracts	82		—		82		—		(c)
Liabilities
Interest rate swaps	$	289	$	—	$	289	$	—	(b)

December 31, 2013	Total		Level 1		Level 2		Level 3		Valuation Technique
Assets
Money market mutual funds	$	19,957	$	19,957	$	—	$	—	(a)
Government agency bonds	7,509		7,509		—		—		(a)
United States treasuries	8,041		8,041		—		—		(a)
Corporate notes	8,453		8,453		—		—		(a)
Certificates of deposit	2,426		2,426		—		—		(a)
Foreign currency forward contracts	114		—		114		—		(c)
Liabilities
Interest rate swaps	$	332	$	—	$	332	$	—	(b)