Fair Value Measurements - Summary of the Level 3 Activity - (Details) $ in Millions	6 Months Ended
	Jun. 25, 2021 USD ($)
Pension Obligation [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Beginning balance	$ 4.7
Fair value adjustments	0.8
Ending balance	5.5
Purchase Option
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Acquisition of Ham-Let	1.1
Ending balance	1.1
Common Stock Purchase Obligation [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Beginning balance	12.6
Fair value adjustments	1.4
Ending balance	$ 14.0