2.2.0.7 false Regulatory Requirements 0210 - Disclosure - Regulatory Requirements true false false false 1 USD false false USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 USDEPS Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 Shares Standard http://www.xbrl.org/2003/instance shares xbrli 0 $ 2 Regulatory Requirements [Abstract] 0 us-gaap_RegulatoryCapitalRequirementsAbstract us-gaap true na duration No definition available. false false false false false true false false false false false false 1 false false false false 0 0 false false false xbrli:stringItemType string No definition available. false 3 Regulatory Requirements 1 us-gaap_RegulatoryCapitalRequirementsUnderBankingRegulationsTextBlock us-gaap true na duration No definition available. false false false false false false false false false false false verboselabel false 1 false false false false 0 0   <div style="font-family: 'Times New Roman',Times,serif"> <div align="left" style="font-size: 10pt; margin-top: 12pt"><b>Note 10 — Regulatory Requirements</b> </div> <div align="left" style="font-size: 10pt; margin-top: 6pt">     Certain subsidiaries of the Company are subject to various regulatory requirements in the United States, United Kingdom and Australia, which specify, among other requirements, minimum net capital requirements for registered broker-dealers. </div> <div align="left" style="font-size: 10pt; margin-top: 6pt">     G&Co is subject to the Securities and Exchange Commission’s Uniform Net Capital requirements under Rule 15c3-1 (the “Rule”), which specifies, among other requirements, minimum net capital requirements for registered broker-dealers. The Rule requires G&Co to maintain a minimum net capital of the greater of $5,000 or 1/15 of aggregate indebtedness, as defined in the Rule. As of September 30, 2010, G&Co’s net capital was $10.5 million, which exceeded its requirement by $10.0 million. G&Co’s aggregate indebtedness to net capital ratio was 0.68 to 1 at September 30, 2010. Certain advances, distributions and other capital withdrawals of G&Co are subject to certain notifications and restrictive provisions of the Rule. </div> <div align="left" style="font-size: 10pt; margin-top: 6pt">     GCI, GCEI and GCPE are subject to capital requirements of the FSA. Greenhill Caliburn is subject to capital requirements of the ASIC. As of September 30, 2010, each of GCI, GCEI, GCPE and Greenhill Caliburn was in compliance with its local capital adequacy requirements. </div>   </div>  <div style="font-family: 'Times New Roman',Times,serif"> </div>  <!-- Begin Block Tagged Note false false false us-types:textBlockItemType textblock This element may be used to capture the complete disclosure for banks, savings institutions, and credit unions, for regulatory capital requirements imposed by the Federal Reserve System (FRB), the Federal Deposit Insurance Corporation (FDIC), the Office of Thrift Supervision (OTS) or for any state imposed capital requirements, as applicable. The disclosure may include (1) a description of regulatory capital requirements (a) for capital adequacy purposes and (b) established by the prompt corrective action provisions of Section 38 of the Federal Depository Insurance Act; (2) the actual or possible material effects of noncompliance with such requirements; (3) whether the entity is in compliance with the regulatory capital requirements including (a) required and actual ratios and amounts of Tier 1 leverage, Tier 1 risk-based, and total risk-based capital, tangible capital (for savings institutions), and Tier 3 capital for market risk (for certain banks and bank holding companies), (b) factors that may significantly affect capital adequacy; (4) the prompt corrective action category in which the entity was classified as of its most recent notification; (5) whether management believes any conditions or events since notification have changed the entity's category. Also may include additional information that might be disclosed in situations where substantial doubt about the entity's ability to continue as a going concern for a reasonable period of time. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Audit and Accounting Guide (AAG) -Number AAG-DEP -Chapter 17 -Paragraph 15, 16, 17 -IssueDate 2006-05-01 false 1 2 false UnKnown UnKnown UnKnown false true