Financial Requirements	12 Months Ended
Dec. 31, 2013
Financial Requirements [Abstract]
Financial Requirements	M. Financial Requirements As registered broker-dealers, G.research and G.distributors are subject to the Uniform Net Capital Rule 15c3-1 (the "Rule") of the SEC. G.research and G.distributors compute their net capital under the alternative method permitted by the Rule which requires minimum net capital of $250,000. The Companies met or exceeded this requirement at December 31, 2013. Our subsidiary, GAMCO Asset Management (UK) Limited is authorized and regulated by the Financial Conduct Authority ("FCA"). In February 2011, GAMCO Asset Management (UK) Limited increased its permitted license with the FCA's predecessor, the Financial Services Authority ("FSA") and has held Total Capital of £495,000 and £384,000 ($816,000 and $621,000 at December 31, 2013 and 2012, respectively) and had a Financial Resources Requirement of £226,000 and £198,000 ($373,000 and $320,000 at December 31, 2013 and 2012, respectively). We have consistently met or exceeded these minimum requirements.

M. Financial Requirements

As registered broker-dealers, G.research and G.distributors are subject to the Uniform Net Capital Rule 15c3-1 (the "Rule") of the SEC. G.research and G.distributors compute their net capital under the alternative method permitted by the Rule which requires minimum net capital of $250,000. The Companies met or exceeded this requirement at December 31, 2013.

Our subsidiary, GAMCO Asset Management (UK) Limited is authorized and regulated by the Financial Conduct Authority ("FCA"). In February 2011, GAMCO Asset Management (UK) Limited increased its permitted license with the FCA's predecessor, the Financial Services Authority ("FSA") and has held Total Capital of £495,000 and £384,000 ($816,000 and $621,000 at December 31, 2013 and 2012, respectively) and had a Financial Resources Requirement of £226,000 and £198,000 ($373,000 and $320,000 at December 31, 2013 and 2012, respectively). We have consistently met or exceeded these minimum requirements.