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Leases - Lease Obligations (Details) - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021
Leases [Abstract]
Finance leases - ROU assets	$ 56.0	$ 58.0
Finance leases - Accumulated depreciation	(28.1)	(27.3)
Operating leases - ROU assets	138.4	133.5
Operating leases - Accumulated depreciation	(77.2)	(69.7)
Total lease assets	89.1	94.5
Finance leases	(8.9)	(10.2)
Operating leases	(21.3)	(21.2)
Finance leases	(18.3)	(19.2)
Operating leases	(44.1)	(44.5)
Total lease liabilities	$ (92.6)	$ (95.1)

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- Definition

Operating And Finance Lease, Lease Liability

+ References

No definition available.

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- Definition

Operating And Finance Lease, Right-of-Use Assets

+ References

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- Definition

Operating Lease, Right-Of-Use Asset, Accumulated Depreciation

+ References

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- Definition

Operating Lease, Right-of-Use Asset, Gross

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- Definition

Present value of lessee's discounted obligation for lease payments from finance lease, classified as current.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 1
-Subparagraph (b)
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- Definition

Present value of lessee's discounted obligation for lease payments from finance lease, classified as noncurrent.

+ References

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-Publisher FASB
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- Definition

Amount, before accumulated amortization, of right-of-use asset from finance lease.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
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Present value of lessee's discounted obligation for lease payments from operating lease, classified as current.

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- Definition

Amount of accumulated depreciation and amortization from plant, property, and equipment and right-of-use asset from finance lease.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
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