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Summary of Significant Accounting Policies and Other Items - Property and Equipment (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2021 | Dec. 31, 2020
Property and equipment |  |
Gross property and equipment | $ 292,076 | $ 274,557
Less: Accumulated depreciation | (175,992) | (147,221)
Net property and equipment | 116,084 | 127,336
Property and equipment, net | 129,117 | 142,825
Land |  |
Property and equipment |  |
Gross property and equipment | 3,203 | 3,203
Buildings and improvements |  |
Property and equipment |  |
Gross property and equipment | $ 22,532 | 21,935
Buildings and improvements | Minimum |  |
Property and Equipment |  |
Estimated useful life | 5 years |
Buildings and improvements | Maximum |  |
Property and Equipment |  |
Estimated useful life | 30 years |
Machinery and equipment |  |
Property and equipment |  |
Gross property and equipment | $ 56,937 | 57,726
Machinery and equipment | Minimum |  |
Property and Equipment |  |
Estimated useful life | 2 years |
Machinery and equipment | Maximum |  |
Property and Equipment |  |
Estimated useful life | 12 years |
Vehicles under finance lease |  |
Property and Equipment |  |
Estimated useful life | 3 years |
Property and equipment |  |
Vehicles under finance lease | $ 23,450 | 14,371
Rental equipment |  |
Property and equipment |  |
Gross property and equipment | $ 180,704 | 172,012
Rental equipment | Minimum |  |
Property and Equipment |  |
Estimated useful life | 2 years |
Rental equipment | Maximum |  |
Property and Equipment |  |
Estimated useful life | 11 years |
Furniture and fixtures |  |
Property and Equipment |  |
Estimated useful life | 5 years |
Property and equipment |  |
Gross property and equipment | $ 1,755 | 1,780
Computers and software |  |
Property and equipment |  |
Gross property and equipment | $ 3,495 | 3,530
Computers and software | Maximum |  |
Property and Equipment |  |
Estimated useful life | 4 years |
Construction in progress |  |
Property and equipment |  |
Gross property and equipment | $ 13,033 | $ 15,489

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- Definition Amount of accumulated depreciation and amortization from plant, property, and equipment and right-of-use asset from finance lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123391704&loc=SL77918638-209977 + Details
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