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Discontinued Operations - Additional Disclosures (Details) $ in Millions |  | 12 Months Ended |
--- | --- | --- | ---
May 22, 2017 USD ($) | Dec. 31, 2016 segment | May 23, 2017 USD ($)
Discontinued Operations and Disposal Groups [Abstract] |  |  |
Number of segments with assets and liabilities classified as discontinued operations (segment) | segment |  | 2 |
Production Technologies | Discontinued Operations, Disposed of by Sale |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |
Cash consideration |  |  | $ 2.9
Escrow deposit |  |  | $ 0.4
National Oilwell Varco, L.P. | Drilling Technologies | Discontinued Operations, Disposed of by Sale |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |
Cash consideration | $ 17.0 |  |
Escrow deposit | $ 1.5 |  |
Term of escrow deposit | 18 months |  |

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- Definition Amount of consideration received or receivable for the disposal of assets and liabilities, including discontinued operation. + References No definition available. + Details
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- Definition The designation of funds furnished by a borrower to a lender to assure future payments of the borrower's real estate taxes and insurance obligations with respect to a mortgaged property. Escrow deposits may be made for a variety of other purposes such as earnest money and contingent payments. This element excludes replacement reserves which are an escrow separately provided for within the US GAAP taxonomy. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.10) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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