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Property, Plant and Equipment | 12 Months Ended
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Dec. 31, 2021
Property, Plant and Equipment |
Property, Plant and Equipment | (8) Property, Plant and Equipment ​ Property, plant and equipment consist of the following: ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31,
​ |  | 2021 |  | 2020
​ | ​ | (in millions)
Land | ​ | $ | 12.6 | ​ | $ | 13.2
Buildings and improvements | ​ |  | 190.6 | ​ |  | 194.3
Machinery and equipment | ​ |  | 394.5 | ​ |  | 386.6
Construction in progress | ​ |  | 11.1 | ​ |  | 14.5
Property, plant and equipment, at cost | ​ |  | 608.8 | ​ |  | 608.6
Accumulated depreciation | ​ |  | (408.1) | ​ |  | (396.3)
Property, plant, and equipment, net | ​ | $ | 200.7 | ​ | $ | 212.3
​

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- Definition The entire disclosure for long-lived, physical asset used in normal conduct of business and not intended for resale. Includes, but is not limited to, work of art, historical treasure, and similar asset classified as collections. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=120429125&loc=d3e99893-112916 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -URI http://asc.fasb.org/topic&trid=2155823 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=120429125&loc=SL120174063-112916 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=120429125&loc=d3e99779-112916 + Details
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