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Impairments and (Gain) Loss on Assets Held for Sale - Additional Information (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2021 USD ($) crane | Dec. 31, 2020 USD ($) crane
Long Lived Assets Held-for-sale [Line Items] |  |
Impairments of other assets | $ 22,750 | $ 3,310
Other Assets |  |
Long Lived Assets Held-for-sale [Line Items] |  |
Impairments of other assets | $ 900 |
Disposal Group, Held-for-sale, Not Discontinued Operations |  |
Long Lived Assets Held-for-sale [Line Items] |  |
Impairments and nonrecurring costs of assets held for sale. |  | $ 2,500
Number of cranes | crane | 1 | 2
Asset impairment and (gain) loss on assets held for sale, net |  | $ 200
Proceeds from the sale of assets held for sale | $ 4,500 | $ 1,700
Proceeds from the sale of assets held for sale net of transaction and other costs | 4,400 |
Gain (loss) on sale of assets | 0 |
Disposal Group, Held-for-sale, Not Discontinued Operations | Fabrication Division |  |
Long Lived Assets Held-for-sale [Line Items] |  |
Impairment of asset held for sale | $ 1,400 |
Number of cranes | crane | 3 |
Asset impairment and (gain) loss on assets held for sale, net | $ 200 |

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- Definition Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=123351718&loc=d3e2420-110228 + Details
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