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Discontinued Operations - Cash Flows (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Discontinued Operations and Disposal Groups [Abstract]
Depreciation	$ 1.1	$ 1.1	$ 1.1
Impairment charges	0.0	5.2	1.3
Capital expenditures	$ 0.3	$ 0.8	$ 0.7

X

- Definition

Cash Provided by (Used in) Operating Activities, Discontinued Operations, Asset Impairment Charges

+ References

No definition available.

+ Details

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Balance Type:	debit
Period Type:	duration

X

- Definition

Amount of capital expenditure attributable to discontinued operations.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 5B
-Subparagraph (c)(2)
-URI http://asc.fasb.org/extlink&oid=109222650&loc=SL51721673-107760

+ Details

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Namespace Prefix:	us-gaap_
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Period Type:	duration

X

- Definition

Amount of deprecation and amortization expense attributable to property, plant and equipment and intangible assets of discontinued operations.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 5B
-Subparagraph (c)(2)
-URI http://asc.fasb.org/extlink&oid=109222650&loc=SL51721673-107760

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X

- References

No definition available.

+ Details

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