Fair Value Measurements - Carrying Value and Estimated Fair Values of Outstanding Debt (Details) - USD ($) $ in Millions	Jan. 02, 2021	Dec. 28, 2019	Mar. 31, 2017	Jun. 30, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	$ 1,486.0
Senior Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	1,286.6	$ 1,235.3
Level 1 | Estimate of Fair Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	$ 1,327.1	1,289.8
5.500 % Senior Notes Due in 2024
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate on notes (as a percent)	5.50%
5.500 % Senior Notes Due in 2024 | Senior Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate on notes (as a percent)	5.50%			5.50%
Carrying Value	$ 0.0	493.5
5.500 % Senior Notes Due in 2024 | Level 1 | Estimate of Fair Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	$ 0.0	514.5
5.500% Senior Notes Due in 2025
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate on notes (as a percent)	5.50%
5.500% Senior Notes Due in 2025 | Senior Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate on notes (as a percent)	5.50%		5.50%
Carrying Value	$ 743.0	741.8
5.500% Senior Notes Due in 2025 | Level 1 | Estimate of Fair Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	$ 767.2	775.3
3.875% senior notes due in 2028 1, 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate on notes (as a percent)	3.875%
3.875% senior notes due in 2028 1, 2 | Senior Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	$ 543.6	0.0
3.875% senior notes due in 2028 1, 2 | Level 1 | Estimate of Fair Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	$ 559.9	$ 0.0