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Basis of Presentation (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Equipment rentals and services	$ 57,107	$ 68,349
Products	16,845	15,491
General and administrative expenses	$ 42,725	43,242
As previously reported
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Equipment rentals and services		55,801
Products		12,329
General and administrative expenses		58,952
Reclassifications
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Equipment rentals and services		12,548
Products		3,162
General and administrative expenses		$ (15,710)

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- Definition

Cost of Equipment Rentals and Services

+ References

No definition available.

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- Definition

Total costs related to goods produced and sold during the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.2(a))
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.4)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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