Fair Value Measurements - (Financial Assets and Liabilities Carried at Fair Value) (Details) - USD ($) $ in Millions	Jul. 03, 2020	Dec. 31, 2019
Liability
Liabilities
Noncurrent deferred compensation liability	$ 9.4	$ 7.2
Liability | Quoted Prices in Active Market (Level 1)
Liabilities
Noncurrent deferred compensation liability	0.0	0.0
Liability | Significant Other Observable Inputs (Level 2)
Liabilities
Noncurrent deferred compensation liability	9.4	7.2
Liability | Significant Unobservable Inputs (Level 3)
Liabilities
Noncurrent deferred compensation liability	0.0	0.0
Cross-currency swap derivative contracts
Assets
Swap derivate contract asset	3.3
Liabilities
Swap derivative contract liability	2.5	8.9
Cross-currency swap derivative contracts | Quoted Prices in Active Market (Level 1)
Assets
Swap derivate contract asset	0.0
Liabilities
Swap derivative contract liability	0.0	0.0
Cross-currency swap derivative contracts | Significant Other Observable Inputs (Level 2)
Assets
Swap derivate contract asset	3.3
Liabilities
Swap derivative contract liability	2.5	8.9
Cross-currency swap derivative contracts | Significant Unobservable Inputs (Level 3)
Assets
Swap derivate contract asset	0.0
Liabilities
Swap derivative contract liability	0.0	0.0
Interest rate swap derivative contracts
Assets
Swap derivate contract asset		0.1
Liabilities
Swap derivative contract liability	11.6
Interest rate swap derivative contracts | Quoted Prices in Active Market (Level 1)
Assets
Swap derivate contract asset		0.0
Liabilities
Swap derivative contract liability	0.0
Interest rate swap derivative contracts | Significant Other Observable Inputs (Level 2)
Assets
Swap derivate contract asset		0.1
Liabilities
Swap derivative contract liability	11.6
Interest rate swap derivative contracts | Significant Unobservable Inputs (Level 3)
Assets
Swap derivate contract asset		$ 0.0
Liabilities
Swap derivative contract liability	$ 0.0