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Impairment and Restructuring Charges | 9 Months Ended
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Sep. 30, 2019
Impairment and Restructuring Charges |
Impairment and Restructuring Charges | Note 12. Impairment and Restructuring Charges ​ The impairment and restructuring charges consisted of the following: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | Three Months Ended | ​ | Nine Months Ended
​ | September 30, | ​ | September 30,
​ | 2019 |  | 2018 |  | 2019 |  | 2018
| (in millions)
Property, plant and equipment | $ | — | ​ | $ | 2.3 | ​ | $ | 1.2 | ​ | $ | 2.3
Intangible assets, net | ​ | — | ​ | ​ | 33.2 | ​ | ​ | — | ​ | ​ | 33.2
Total impairment charges | ​ | — | ​ | ​ | 35.5 | ​ | ​ | 1.2 | ​ | ​ | 35.5
Restructuring––warehouse, delivery, selling, general and administrative expense | ​ | — | ​ | ​ | 1.3 | ​ | ​ | — | ​ | ​ | 1.3
Total impairment and restructuring charges | $ | — | ​ | $ | 36.8 | ​ | $ | 1.2 | ​ | $ | 36.8
​ ​ The $36.8 million of impairment and restructuring charges in the three months and nine months ended September 30, 2018 mainly related to our decision to downsize one of our energy businesses due to changes in competitive factors for certain products they sell.

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- Definition Impairment and Restructuring Charges Disclosure [Abstract] + References No definition available. + Details
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- Definition The entire disclosure of costs incurred for restructuring including, but not limited to, exit and disposal activities, remediation, implementation, integration, asset impairment, and charges against earnings from the write-down of assets. + References No definition available. + Details
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