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Accounting Policies and Basis of Presentation - Narrative (Details) crane in Thousands | 3 Months Ended |
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Mar. 31, 2021 segment | Mar. 31, 2020 crane
Accounting Policies [Abstract] |  |
Period of providing high-quality, customer-focused products and support services | 118 years |
Number of cranes serviced | crane |  | 152
Number of reportable segments | segment | 3 |

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- Definition Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8672-108599 + Details
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