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Commitments and Contingencies (Narrative) (Details) RUB in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2017 USD ($) | Sep. 30, 2017 USD ($) | Sep. 30, 2016 USD ($) | Oct. 31, 2016 USD ($) | Oct. 31, 2016 RUB
Product Liability Contingency [Line Items] |  |  |  |  |
Estimated repair costs | $ 500,000 | $ 5,700,000 |  |  |
Expense for asbestos-related litigation |  | $ 3,900,000 | $ 2,300,000 |  |
Unfavorable Regulatory Action [Member] |  |  |  |  |
Product Liability Contingency [Line Items] |  |  |  |  |
Alleged unauthorized payment |  |  |  | $ 475 | RUB 30

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- Definition Maintenance costs incurred and are directly 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 + Details
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- Definition Amount, after effects of reinsurance, of expense for claims incurred and costs incurred in the claim settlement process attributable to asbestos and environmental claims. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=65670824&loc=d3e14764-158437 + Details
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