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Property, Plant and Equipment - Depreciation and Amortization Expense (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
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Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2017 | Sep. 30, 2016
Property, Plant and Equipment [Line Items] |  |  |  |
Depreciation and amortization | $ 30,650 | $ 26,545 | $ 92,700 | $ 84,278
Equipment rentals and services |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Depreciation and amortization | 25,663 | 23,870 | 78,558 | 76,023
Products |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Depreciation and amortization | 1,278 | 989 | 3,838 | 3,081
General and administrative expenses |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Depreciation and amortization | $ 3,709 | $ 1,686 | $ 10,304 | $ 5,174

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- Definition The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Details
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