Fair Value Measurements (Tables)

12 Months Ended

Dec. 30, 2017

Fair Value Disclosures [Abstract]

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

The following table details our financial assets measured and recorded at fair value on a recurring basis at the end of 2017:

(In thousands)
		Fair Value Measurements Using
Description	Balance Sheet Classification	Level 1		Level 2		Level 3
Money market funds	Cash equivalents	$	99,472	$	—	$	—
Time deposits	Cash equivalents	—		60,226		—
Government and corporate bonds	Cash equivalents	—		850		—
Time deposits	Short-term investments	—		40,186		—
Commercial paper	Short-term investments	—		147,509		—
Government and corporate bonds	Short-term investments	—		247,149		—
Government and corporate bonds	Long-term investments	—		184,452		—

The following table details our financial assets measured and recorded at fair value on a recurring basis at the end of 2016:

(In thousands)
		Fair Value Measurements Using
Description	Balance Sheet Classification	Level 1		Level 2		Level 3
Money market funds	Cash equivalents	$	23,110	$	—	$	—
Time deposits	Cash equivalents	—		11,477		—
Time deposits	Short-term investments	—		40,639		—
Commercial paper	Short-term investments	—		22,301		—
Government and corporate bonds	Short-term investments	—		122,648		—
Government and corporate bonds	Long-term investments	—		95,368		—