XML 92 R76.htm IDEA: XBRL DOCUMENT
v3.6.0.2

Earnings (Loss) Per Share ("EPS") - Additional Information (Detail) |  | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
May 30, 2014 shares | Dec. 31, 2016 shares | Sep. 30, 2016 shares | Jun. 30, 2016 shares | Mar. 31, 2016 shares | Dec. 31, 2015 shares | Sep. 30, 2015 shares | Jun. 30, 2015 shares | Mar. 31, 2015 shares | Dec. 31, 2016 shares | Dec. 31, 2015 shares | Dec. 31, 2014 shares
Earnings Per Share [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Common stock, shares outstanding |  | 107,474,904 |  |  |  | 107,219,138 |  |  |  | 107,474,904 | 107,219,138 |
Weighted-average common shares outstanding, basic | 107,053,031 | 107,000,000 | 107,000,000 | 107,000,000 | 107,000,000 | 107,000,000 | 107,000,000 | 107,000,000 | 107,000,000 | 107,416,181 | 107,173,972 | 107,058,843
Antidilutive Securities excluded from Computation of Earnings Per Share |  |  |  |  |  |  |  |  |  | 7,000,000 | 6,000,000 | 3,000,000
Separation [Member] |  |  |  |  |  |  |  |  |  |  |  |
Earnings Per Share [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Common stock, shares outstanding | 107,053,031 |  |  |  |  |  |  |  |  |  |  |
Ratio of common stock sharing | 4 |  |  |  |  |  |  |  |  |  |  |

X
- Definition Earning per share. + References No definition available. + Details
Name: | dnow_EarningsPerShareLineItems
Namespace Prefix: | dnow_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Share exchange ratio in spin off. + References No definition available. + Details
Name: | dnow_ShareExchangeRatioInSpinOff
Namespace Prefix: | dnow_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | duration

X
- Definition Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Antidilution -URI http://asc.fasb.org/extlink&oid=6505113 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Diluted Earnings Per Share -URI http://asc.fasb.org/extlink&oid=6510752 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Contingent Stock Agreement -URI http://asc.fasb.org/extlink&oid=6508534 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
Name: | us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 + Details
Name: | us-gaap_CommonStockSharesOutstanding
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=64863997&loc=d3e1448-109256 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Weighted-Average Number of Common Shares Outstanding -URI http://asc.fasb.org/extlink&oid=6528421 + Details
Name: | us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_RestructuringCostAndReserveAxis=us-gaap_SpinoffMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |