Debt and Financing - Schedule of Carrying Values and Estimated Fair Values of Debt Instruments (Details) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022
Book Value
Debt Instrument [Line Items]
Long-term debt, fair value	$ 1,477.8	$ 1,538.0
Fair Value
Debt Instrument [Line Items]
Long-term debt, fair value	1,434.6	1,507.2
UST Loan | Book Value
Debt Instrument [Line Items]
Long-term debt, fair value	708.6	701.4
UST Loan | Fair Value
Debt Instrument [Line Items]
Long-term debt, fair value	705.8	703.6
Term Loan | Book Value
Debt Instrument [Line Items]
Long-term debt, fair value	557.1	556.8
Term Loan | Fair Value
Debt Instrument [Line Items]
Long-term debt, fair value	516.3	523.6
Lease financing obligations | Book Value
Debt Instrument [Line Items]
Long-term debt, fair value	212.1	213.8
Lease financing obligations | Fair Value
Debt Instrument [Line Items]
Long-term debt, fair value	212.5	213.7
Second A&R CDA | Book Value
Debt Instrument [Line Items]
Long-term debt, fair value		66.0
Second A&R CDA | Fair Value
Debt Instrument [Line Items]
Long-term debt, fair value		$ 66.3