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INVESTMENTS (Schedule of Investments Categorized by Investment Class) (Details) In Thousands, unless otherwise specified | Dec. 31, 2014 USD ($) | Dec. 31, 2014 CNY | Dec. 31, 2013 CNY | Dec. 31, 2014 Private companies [Member] USD ($) | Dec. 31, 2014 Private companies [Member] CNY | Dec. 31, 2013 Private companies [Member] CNY | Dec. 31, 2014 Limited partnerships [Member] USD ($) | Dec. 31, 2014 Limited partnerships [Member] CNY | Dec. 31, 2013 Limited partnerships [Member] CNY
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Cost Method Investments |  |  |  |  |  |  |  |  |
Long-term Investments | $ 1,072 us-gaap_LongTermInvestments | 6,652 us-gaap_LongTermInvestments |  | $ 824 us-gaap_LongTermInvestments / us-gaap_PartnerTypeOfPartnersCapitalAccountAxis = wbai_PrivatelyHeldEntitesMember | 5,114 us-gaap_LongTermInvestments / us-gaap_PartnerTypeOfPartnersCapitalAccountAxis = wbai_PrivatelyHeldEntitesMember |  | $ 248 us-gaap_LongTermInvestments / us-gaap_PartnerTypeOfPartnersCapitalAccountAxis = us-gaap_LimitedPartnerMember | 1,538 us-gaap_LongTermInvestments / us-gaap_PartnerTypeOfPartnersCapitalAccountAxis = us-gaap_LimitedPartnerMember |

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- Definition The total amount of investments that are intended to be held for an extended period of time (longer than one operating cycle). + 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 210.5-02.12) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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