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Schedule of Debt (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Long-term debt	$ 101.8	$ 108.0
Senior Notes [Member]
Debt Instrument [Line Items]
Long-term debt, face amount	74.3	74.3
Long-term debt, interest	27.5	33.7
Long-term debt, current	6.1	6.1
Long-term debt	$ 101.8	$ 108.0

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