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Leases - Cash flows (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Leases
Operating cash flows from operating leases	$ 11.3	$ 11.8
Operating cash flows from finance leases	0.1	0.2
Financing cash flows from finance leases	1.4	2.1
Total cash paid for amounts included in the measurement of lease liabilities	12.8	14.1
Finance lease liabilities arising from obtaining right-of-use assets	0.4	2.1
Operating lease liabilities arising from obtaining right-of-use assets	$ 4.9	$ 24.7

X

- Definition

Amount of interest paid on finance lease liability.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
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X

- Definition

Amount of cash outflow for principal payment on finance lease.

+ References

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X

- Definition

Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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Amount of increase in right-of-use asset obtained in exchange for finance lease liability.

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

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Amount of cash outflows for operating lease and finance lease.

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