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Property, Plant and Equipment | 12 Months Ended
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Dec. 31, 2022
Property, Plant and Equipment [Abstract] |
Property, Plant and Equipment | Property, Plant and Equipment The components of property, plant and equipment are as follows:
| December 31,
(in thousands) | 2022 |  | 2021
Land | $ | 38,689 |  |  | $ | 39,162 |
Land improvements and leasehold improvements | 92,084 |  |  | 91,122 |
Buildings and storage facilities | 364,721 |  |  | 368,577 |
Machinery and equipment | 980,159 |  |  | 936,476 |
Construction in progress | 41,429 |  |  | 20,676 |
| 1,517,082 |  |  | 1,456,013 |
Less: accumulated depreciation | (754,353) |  |  | (669,984) |
Property, plant and equipment, net | $ | 762,729 |  |  | $ | 786,029 |
Depreciation expense on property, plant and equipment amounted to $110.6 million, $126.9 million and $122.4 million for the years ended December 31, 2022, 2021 and 2020, respectively. In December 2022, the Company recorded charges of $9.0 million for impairments of property, plant and equipment in the Trade segment related to a Nebraska grain asset. In December 2021, the Company recorded charges of $7.7 million for impairments of property, plant and equipment in the Trade segment related to its frac sand assets in Oklahoma. The Company also recorded a $0.6 million impairment of property, plant and equipment in the Trade segment related to the shutdown of a facility in Texas.

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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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