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Supplemental Cash Flow Information (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Supplemental Cash Flow Elements [Abstract]
Cash paid during the period for income taxes	$ 0.3	$ 0.0
Cash paid for interest	0.0	2.3
Establishment of operating lease right-of-use assets and lease liabilities
Operating lease right-of-use assets	0.0	2.7
Operating lease liabilities	0.8	2.7
Purchases of property, plant and equipment in accounts payable	$ 0.9	$ 0.0

X

- Definition

Operating Lease Liability Established

+ References

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- Definition

Future cash outflow to pay for purchases of fixed assets that have occurred.

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- Definition

The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income.

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Amount of cash paid for interest, excluding capitalized interest, classified as operating activity. Includes, but is not limited to, payment to settle zero-coupon bond for accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount.

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Amount of increase in right-of-use asset obtained in exchange for operating lease liability.

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