Fair Value Measurements and Disclosures (Tables)

12 Months Ended

Dec. 30, 2017

Assets and liabilities measurements at estimated fair value on recurring basis excluding accrued interest components

The following tables present the Company’s assets and liabilities measured at estimated fair value on a recurring basis, excluding accrued interest components, categorized in accordance with the fair value hierarchy (in thousands), as of the following dates:

	December 30, 2017								December 31, 2016
	Fair Value Measurements Using Input Types								Fair Value Measurements Using Input Types
	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
Assets:
Cash equivalents:
Money market funds	$	256	$	—	$	—	$	256	$	959	$	—	$	—	$	959
Commercial paper and corporate debt securities		—		—		—		—		—		2,499		—		2,499
Total cash equivalents	$	256	$	—	$	—	$	256	$	959	$	2,499	$	—	$	3,458

Marketable securities:
U.S. Treasury, U.S. Government and U.S. Government agency debt securities		—		1,495		—		1,495		—		17,072		—		17,072
Certificate of deposits		—		14,497		—		14,497		—		23,019		—		23,019
Commercial paper		—		7,949		—		7,949		—		22,402		—		22,402
Municipal securities and corporate debt securities		—		47,968		—		47,968		—		14,943		—		14,943
Asset backed securities		—		10,221		—		10,221		—		5,463		—		5,463
Total marketable securities	$	—	$	82,130	$	—	$	82,130	$	—	$	82,899	$	—	$	82,899

Total⁽¹⁾	$	256	$	82,130	$	—	$	82,386	$	959	$	85,398	$	—	$	86,357

⁽¹⁾	Excludes $34.6 million and $43.6 million held in operating accounts as of December 30, 2017, and December 31, 2016, respectively.

Outstanding derivative instruments

The following table summarizes the Company’s outstanding derivative instruments on a gross basis:

	As of December 30, 2017						As of December 31, 2016
	Notional Amount		Fair Value				Notional Amount		Fair Value
	(in millions)		Asset		Liability		(in millions)		Asset		Liability

Undesignated Hedges:
Forward Foreign Currency Contracts
Purchase	$	27.5		—	$	0.1	$	12.6		—		—
Sell	$	16.8		0.1		—	$	1.3		—		—