2.4.0.82409404 - Disclosure - Income Per Share Income Per Share - Additional Information (Details)truefalsefalse1false falsefalseD2013Q2YTD_us-gaap_StatementClassOfStockAxis_us-gaap_CommonClassAMemberhttp://www.sec.gov/CIK0001271024duration2013-01-01T00:00:002013-06-30T00:00:001false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse1false truefalseD2013Q2YTD_us-gaap_StatementClassOfStockAxis_us-gaap_CommonClassAMemberhttp://www.sec.gov/CIK0001271024duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseClass A Common Stockus-gaap_StatementClassOfStockAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_CommonClassAMemberus-gaap_StatementClassOfStockAxisexplicitMembernanafalse0Class A Common Stock2true 2us-gaap_EarningsPerShareBasicLineItemsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]3false 3us-gaap_CommonStockVotingRightsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00one vote per sharefalsefalsefalsexbrli:stringItemTypestringDescription of voting rights of common stock. Includes eligibility to vote and votes per share owned. Include also, if any, unusual voting rights.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 129 -Paragraph 4 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. false0Common Stock, Voting Rights4false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2false truefalseD2013Q2YTD_us-gaap_StatementClassOfStockAxis_us-gaap_CommonClassBMemberhttp://www.sec.gov/CIK0001271024duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseClass B Common Stockus-gaap_StatementClassOfStockAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_CommonClassBMemberus-gaap_StatementClassOfStockAxisexplicitMembernanafalse0Class B Common Stock5true 2us-gaap_EarningsPerShareBasicLineItemsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]6false 3us-gaap_CommonStockVotingRightsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00ten votes per sharefalsefalsefalsexbrli:stringItemTypestringDescription of voting rights of common stock. Includes eligibility to vote and votes per share owned. Include also, if any, unusual voting rights.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 129 -Paragraph 4 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. false0Common Stock, Voting RightsfalseIncome Per Share Income Per Share - Additional Information (Details)UnKnownUnKnownUnKnownUnKnowntruefalsefalseSheethttp://www.linkedin.com/role/IncomePerShareIncomePerShareAdditionalInformationDetails16