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Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.No definition available.false3Net loss per share, basic and diluted4false 4us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDilutedus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse7398300073983falsefalsefalse2truefalsefalse6245100062451falsefalsefalsexbrli:sharesItemTypesharesAverage number of shares or units issued and outstanding that are used in calculating basic and diluted earnings per share (EPS).No definition available.false1Weighted average number of shares outstanding, basic and diluted5true 4us-gaap_DilutiveSecuritiesAbstractus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Potentially dilutive securities:6false 5us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangementsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse29870002987[1]falsefalsefalse2truefalsefalse78490007849[1]falsefalsefalsexbrli:sharesItemTypesharesAdditional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -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 28A -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1500-109256 false1Outstanding stock options7false 5us-gaap_IncrementalCommonSharesAttributableToContingentlyIssuableSharesus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse188000188[1]falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:sharesItemTypesharesAdditional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of contingently issuable shares. Contingently issuable shares are those shares that are issuable for little or no cash contingent on certain conditions being met.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -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 55 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e2626-109256 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 48 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e2538-109256 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Contingently Issuable Shares -URI http://asc.fasb.org/extlink&oid=6508586 false1Restricted shares1The impact of potentially dilutive securities on earnings per share is anti-dilutive in a period of net loss.falseComputations of Net Loss Per Share Applicable to Common Stockholders (Detail) (USD $)ThousandsThousandsNoRoundingUnKnowntruefalsefalseSheethttp://www.bazaarvoice.com/taxonomy/role/DisclosureComputationsOfNetLossPerShareApplicableToCommonStockholders27