Fair Value (Tables)

9 Months Ended

Sep. 26, 2020

Fair Value Disclosures [Abstract]

Schedule of fair value measurements

The following table presents the items measured at fair value as of September 26, 2020 and December 31, 2019:

	Fair Value
	September 26, 2020		December 31, 2019
Cash and cash equivalents:
Money market funds (Level 1)	$	310,569	—
Short-term investments:
Short-duration bond fund (Level 1) (1)	407,784		—
Commercial paper (Level 2)	—		42,500

(1) The Company's investment is in a Short-duration bond fund that is designed to deliver current income consistent with the preservation of capital through investing in high-and medium grade fixed income securities. The investment is readily convertible into cash.