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Acquisitions and Dispositions (Narrative) (Details) - USD ($) $ in Thousands |  |  |  |  |  | 12 Months Ended
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Jun. 01, 2023 | Oct. 01, 2022 | Feb. 01, 2022 | Dec. 21, 2021 | Aug. 31, 2021 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Schedule of Business Dispositions, by Dispositions [Line Items] |  |  |  |  |  |  |  |
Gain on sale of business |  |  |  |  |  | $ 18,965 | $ 225,832 | $ 22,085
Volante [Member] |  |  |  |  |  |  |  |
Schedule of Business Dispositions, by Dispositions [Line Items] |  |  |  |  |  |  |  |
Total sale consideration |  | $ 181,900 |  |  |  |  |  |
Proceeds from sale of business |  | 155,600 |  |  |  |  |  |
Gain on sale of business |  | $ 118,500 |  |  |  |  |  |
Velocity [Member] |  |  |  |  |  |  |  |
Schedule of Business Dispositions, by Dispositions [Line Items] |  |  |  |  |  |  |  |
Total sale consideration |  |  | $ 181,300 |  |  |  |  |
Gain on sale of business |  |  | $ 107,300 |  |  |  |  |
ISIC [Member] |  |  |  |  |  |  |  |
Schedule of Business Dispositions, by Dispositions [Line Items] |  |  |  |  |  |  |  |
Gain on sale of business | $ 16,900 |  |  |  |  |  |  |
Metromont LLC [Member] |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Percentage acquired |  |  |  | 51.00% |  |  |  |
Total purchase consideration |  |  |  | $ 274,500 |  |  |  |
Cash consideration |  |  |  | 274,500 |  |  |  |
Goodwill recognized |  |  |  | 101,600 |  |  |  |
Total intangible assets |  |  |  | 230,000 |  |  |  |
Goodwill, tax deductible |  |  |  | 51,800 |  |  |  |
Noncontrolling interests |  |  |  | 247,400 |  |  |  |
Metromont LLC [Member] | Customer Relationships [Member] |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Finite-lived intangible assets |  |  |  | $ 175,000 |  |  |  |
Definite-lived intangible assets, weighted-average amortization period |  |  |  | 17 years |  |  |  |
Metromont LLC [Member] | Trade Names [Member] |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Finite-lived intangible assets |  |  |  | $ 55,000 |  |  |  |
Definite-lived intangible assets, weighted-average amortization period |  |  |  | 15 years |  |  |  |
Buckner HeavyLift Cranes [Member] |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Percentage acquired |  |  |  |  | 90.00% |  |  |
Total purchase consideration |  |  |  |  | $ 237,900 |  |  |
Cash consideration |  |  |  |  | 237,900 |  |  |
Goodwill recognized |  |  |  |  | 109,900 |  |  |
Total intangible assets |  |  |  |  | 60,000 |  |  |
Goodwill, tax deductible |  |  |  |  | 0 |  |  |
Noncontrolling interests |  |  |  |  | 26,400 |  |  |
Fixed assets |  |  |  |  | 290,400 |  |  |
Long-term debt |  |  |  |  | 165,100 |  |  |
Buckner HeavyLift Cranes [Member] | Customer Relationships [Member] |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Finite-lived intangible assets |  |  |  |  | $ 50,000 |  |  |
Definite-lived intangible assets, weighted-average amortization period |  |  |  |  | 7 years |  |  |
Buckner HeavyLift Cranes [Member] | Trade Names [Member] |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Finite-lived intangible assets |  |  |  |  | $ 10,000 |  |  |
Definite-lived intangible assets, weighted-average amortization period |  |  |  |  | 15 years |  |  |

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