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Leases - Lease Obligations (Details) $ in Millions	Mar. 31, 2019 USD ($)
Leases [Abstract]
Finance leases - ROU assets	$ 41.2
Finance leases - Accumulated depreciation	(9.5)
Operating leases - ROU assets	85.5
Operating leases - Accumulated depreciation	(9.0)
Total lease assets	108.2
Finance leases	(7.0)
Operating leases	(23.2)
Finance leases	(26.8)
Operating leases	(55.2)
Total lease liabilities	$ (112.2)

X

- Definition

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

+ References

No definition available.

+ Details

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X

- Definition

Finance Lease, Right-Of-Use Asset, Gross

+ References

No definition available.

+ Details

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X

- Definition

Operating And Finance Lease, Lease Liability

+ References

No definition available.

+ Details

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X

- Definition

Operating And Finance Lease, Right-of-Use Assets

+ References

No definition available.

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- Definition

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

+ References

No definition available.

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- Definition

Operating Lease, Right-of-Use Asset, Gross

+ References

No definition available.

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X

- 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)
-URI http://asc.fasb.org/extlink&oid=77888419&loc=SL77918627-209977

+ Details

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X

- Definition

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

+ 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)
-URI http://asc.fasb.org/extlink&oid=77888419&loc=SL77918627-209977

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- References

No definition available.

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- Definition

Present value of lessee's discounted obligation for lease payments from operating 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)
-URI http://asc.fasb.org/extlink&oid=77888419&loc=SL77918627-209977

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X

- Definition

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

+ 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)
-URI http://asc.fasb.org/extlink&oid=77888419&loc=SL77918627-209977

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