Fair Value Measurements - Schedule of Fixed Rate Long-term Debt (Details) - USD ($) $ in Millions	Sep. 26, 2020	Dec. 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Public bonds	$ 2,917.1	$ 2,751.4
Public Bonds | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Public bonds	2,969.9	2,618.4
Private placement note | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Private placement note	168.0	168.4
Reported Value Measurement | Public Bonds | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Public bonds	2,760.0	2,600.0
Reported Value Measurement | Private placement note | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Private placement note	$ 157.1	$ 151.4