Fair Value Measurements (Tables)

6 Months Ended

Jun. 29, 2014

Fair Value Disclosures [Abstract]

Fair Value, Assets Measured on Recurring Basis

The following tables summarize the Company's assets that are measured at fair value on a recurring basis, by level, within the fair value hierarchy as of June 29, 2014 and December 29, 2013:

	June 29, 2014
	Total		Level 1		Level 2		Level 3
	(in thousands)
Cash equivalents:
Money market funds	$	18,019	$	18,019	$	—	$	—
Short-term investments:
Commercial paper	53,030		—		53,030		—
Total	$	71,049	$	18,019	$	53,030	$	—

	December 29, 2013
	Total		Level 1		Level 2		Level 3
	(in thousands)
Cash equivalents:
Money market funds	$	18,019	$	18,019	$	—	$	—
Short-term investments:
Commercial paper	18,014		—		18,014		—
Total	$	36,033	$	18,019	$	18,014	$	—