Commitments and Contingencies - Additional Information (Detail) - USD ($) $ in Millions	Jun. 26, 2020	Dec. 31, 2019	Dec. 31, 2017
Other Commitments [Line Items]
Non-cancelable purchase commitments	$ 52.5
Maximum amount of potential future payments under the company's financial guarantees	2.7	$ 2.7
Indemnification [Member]
Other Commitments [Line Items]
Accrual for indemnification provisions	0.0
Domestic Line of Credit [Member] | Performance Guarantee [Member] | Guarantee Obligations [Member]
Other Commitments [Line Items]
Bank Guarantees and Standby Letters of Credit			$ 2.3
Foreign Line of Credit [Member] | Performance Guarantee [Member] | Guarantee Obligations [Member]
Other Commitments [Line Items]
Line of Credit Facility, Current Borrowing Capacity			$ 2.0
JPMORGAN CHASE BANK N.A. [Member] | Revolving Credit Facility [Member]
Other Commitments [Line Items]
Maximum amount of potential future payments under the company's financial guarantees	0.3	0.3
Line of Credit Facility, Current Borrowing Capacity	0.0	0.0
Foreign Line of Credit [Member] | Performance Guarantee [Member]
Other Commitments [Line Items]
Line of Credit Facility, Fair Value of Amount Outstanding	$ 0.0	$ 0.0