Fair Value Measurements (Tables)

3 Months Ended

Apr. 04, 2020

Fair Value Disclosures [Abstract]

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

The following tables set forth the Company’s financial instruments that were measured at fair value on a recurring basis by level within the fair value hierarchy (in thousands):

	April 4, 2020
	Level 1		Level 2		Level 3		Total
Assets:
Money market funds	$	89,166	$	—	$	—	$	89,166
U.S. government agencies	—		63,854		—		63,854
Corporate debt securities	—		164,917		—		164,917
Derivative assets	—		36		—		36
Total	$	89,166	$	228,807	$	—	$	317,973
Liabilities:
Contingent consideration	$	—	$	—	$	1,889	$	1,889
Derivative liabilities	—		10		—		10
Total	$	—	$	10	$	1,889	$	1,899

	December 31, 2019
	Level 1		Level 2		Level 3		Total
Assets:
Money market funds	$	107,708	$	—	$	—	$	107,708
U.S. government agencies	—		77,364		—		77,364
Corporate debt securities	—		207,137		—		207,137
Total	$	107,708	$	284,501	$	—	$	392,209
Liabilities:
Contingent consideration	$	—	$	—	$	1,889	$	1,889
Derivative liabilities	—		748		—		748
Total	$	—	$	748	$	1,889	$	2,637