Fair Value Measurements of Assets and Liabilities (Tables)

9 Months Ended

Sep. 28, 2014

Fair Value Disclosures [Abstract]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis

Following are the disclosures related to the fair value of our financial assets and (liabilities) (in thousands):

September 28, 2014	Level 1		Level 2			Level 3		Total
Available for sale marketable securities:
U.S. Government-backed securities	$	12,618	$	—		$	—	$	12,618
Agency bonds	—		51,958			—		51,958
Commercial paper	—		39,332			—		39,332
Certificates of deposit	—		17,274			—		17,274
Municipal bonds	—		31,547			—		31,547
Corporate bonds	—		9,920			—		9,920
Trading securities:
Equity securities – mutual funds	6,945		—			—		6,945
Derivative contracts, net	—		(4,307		)	—		(4,307		)
Total	$	19,563	$	145,724		$	—	$	165,287

December 31, 2013	Level 1		Level 2			Level 3		Total
Available for sale marketable securities:
U.S. treasury notes	$	10,128	$	—		$	—	$	10,128
Agency bonds	—		37,961			—		37,961
Commercial paper	—		39,987			—		39,987
Certificates of deposit	—		7,786			—		7,786
Municipal bonds	—		49,319			—		49,319
Corporate bonds	—		5,001			—		5,001
Trading securities:
Equity securities – mutual funds	5,287		—			—		5,287
Derivative contracts, net	—		(1,113		)	—		(1,113		)
Total	$	15,415	$	138,941		$	—	$	154,356