Fair Value Measurements (Details) - USD ($) $ in Millions	Jun. 27, 2024	Dec. 31, 2023
Carrying amount and estimated fair value of long term debt
Carrying Amount	$ 3,881.8	$ 3,878.1
Fair Value	4,094.7	4,037.3
Senior Secured Notes Due 2025 [Member]
Carrying amount and estimated fair value of long term debt
Carrying Amount	20.8	20.8
Fair Value	20.4	20.7
Secured Debt Term B [Member]
Debt Instrument [Line Items]
Secured Long-term Debt, Noncurrent	566.2	565.2
Carrying amount and estimated fair value of long term debt
Carrying Amount	572.0	571.0
Fair Value	575.6	573.1
Senior Unsecured Notes Due 2026 [Member]
Debt Instrument [Line Items]
Secured Long-term Debt, Noncurrent	299.3	299.1
Carrying amount and estimated fair value of long term debt
Carrying Amount	299.3	299.1
Fair Value	287.8	288.0
Senior Unsecured Notes Due 2028 [Member]
Carrying amount and estimated fair value of long term debt
Carrying Amount	696.9	696.6
Fair Value	653.5	616.8
Senior Secured Notes Due 2025
Debt Instrument [Line Items]
Secured Long-term Debt, Noncurrent	0.0	20.8
Senior Secured First Lien Notes due 2029
Debt Instrument [Line Items]
Secured Long-term Debt, Noncurrent	889.1	888.4
Carrying amount and estimated fair value of long term debt
Carrying Amount	889.1	888.4
Fair Value	959.0	973.0
Exchangeable Notes Due 2028
Debt Instrument [Line Items]
Secured Long-term Debt, Noncurrent	222.9	222.2
Carrying amount and estimated fair value of long term debt
Carrying Amount	222.9	222.2
Fair Value	293.8	292.6
Senior Secured Second Lien Notes due 2030
Debt Instrument [Line Items]
Secured Long-term Debt, Noncurrent	1,180.8	1,180.0
Carrying amount and estimated fair value of long term debt
Carrying Amount	1,180.8	1,180.0
Fair Value	$ 1,304.6	$ 1,273.1