Related Party Transactions	12 Months Ended
Dec. 31, 2013
Related Party Transactions [Abstract]
Related Party Transactions	L. Related Party Transactions The following is a summary of certain related party transactions. GGCP Holdings LLC owns a majority of our Class B Stock, representing approximately 1% of the combined voting power and 1% of the outstanding shares of our common stock at December 31, 2013. Capital Lease We lease an approximately 60,000 square foot building located at 401 Theodore Fremd Avenue, Rye, New York as our headquarters (the "Building") from an entity controlled by members of the Chairman's family. See Note I. We sub-lease approximately 3,300 square feet in the Building to LICT Corporation, a company for which Mr. Gabelli serves as Chairman and CEO, which pays rent at the rate of $28 per square foot plus $3 per square foot for electricity, subject to adjustment for increases in taxes and other operating expenses. The total amounts paid in 2013, 2012, and 2011 for rent and other expenses under this lease were $116,527, $114,716, and $119,025, respectively. Concurrent with the extension of the lease on the Building during 2008, we and LICT Corporation further agreed to extend the term of the sub-lease until December 2023 on the same terms and conditions. As of July 1, 2008, we also sub-lease approximately 1,600 square feet in the Building to Teton. Teton pays rent at the rate of $37.75 per square foot plus $3 per square foot for electricity, subject to adjustment for increases in taxes and other operating expenses. The total amount paid in 2013, 2012 and 2011 for rent and other expenses under this lease were $68,189, $67,361 and $69,330, respectively, and were recorded in other operating expenses as a credit on the consolidated statements of income. Investment Advisory Services GAMCO has entered into agreements to provide advisory and administrative services to MJG Associates, Inc., which is wholly-owned by Mr. Gabelli, with respect to the private investment funds managed by them. Pursuant to such agreements, MJG Associates, Inc. paid GAMCO $10,000 (excluding reimbursement of expenses) for each of the years 2013, 2012, and 2011. For 2013, 2012 and 2011, Manhattan Partners I, L.P. and Manhattan Partners II, L.P., investment partnerships for which John Gabelli Inc., an entity owned by John Gabelli, a brother of our Chairman, is the general partner, paid GAMCO investment advisory fees in the amount of $21,601, $21,660 and $19,608, respectively, and Manhattan Partners I, L.P. paid management fees in the amount of $0, $0 and $10,665, respectively, to the general partners of Gemini Global Partners, L.P. In addition, an entity that Mr. John Gabelli's wife is the sole shareholder of is the co-general partner of S.W.A.N. Partners, LP ("S.W.A.N."). S.W.A.N. paid GAMCO investment advisory fees in the amount of $32,740, $35,649 and $36,466 for 2013, 2012 and 2011, respectively, and is included in investment advisory and incentive fees on the consolidated statements of income. Gabelli Securities International Limited ("GS International") was formed in 1994 to provide management and investment advisory services to offshore funds and accounts. Mr. Marc Gabelli, who is a son of our Chairman, owns 55% of GS International and GSI owns the remaining 45%. In 1994, Gabelli International Gold Fund Limited ("GIGFL"), an offshore investment company investing primarily in securities of issuers with gold-related activities, was formed and GS International entered into an agreement to provide management services to GIGFL. GSI in turn entered into an agreement with GS International to provide investment advisory services to GIGFL in return for receiving all investment management fees paid by GIGFL. Pursuant to such agreement, GSI received investment management fees of $13,478 and no incentive fees for 2013. Comparable amounts for 2012 were $23,192 and $0, respectively, and for 2011 they were $32,203 and $0, respectively. As of December 31, 2013 and 2012, there were $50,639 and $11,957, respectively, payable to GIGFL included in accrued expenses and other liabilities on the consolidated statements of financial condition relating to management fees. In April 1999, Gabelli Global Partners, Ltd. ("GGP Ltd."), an offshore investment fund, was incorporated. GS International and Gemini Capital Management, LLC ("Gemini"), an entity owned by Mr. Marc Gabelli, were engaged by GGP Ltd. as investment advisors as of July 1, 1999. GGP Ltd. paid all of the management fees for 2013 and 2012 in the amounts of $148,909 and $80,761, respectively, to GS International. For 2013, GGP Ltd. paid all of the incentive fees in the amount of $31,217 to GSI International. There were no incentive fees earned in 2012. For 2011, Gemini received half of the management fees paid by GGP Ltd. in the amount of $45,668. As of December 31, 2013 and 2012, there were $0 and $59,390, respectively, receivable from GGP Ltd. included in investment advisory fees receivable on the consolidated statements of financial condition. In April 1999, GSI formed Gabelli Global Partners, L.P., an investment limited partnership for which GSI and Gemini are the general partners. In March 2002, Gabelli Global Partners, L.P. changed its name to Gemini Global Partners, L.P. Gemini and GSI each received half of the management fee paid by the partnership to the general partners in 2013, 2012 and 2011 in the amounts of $76,776, $76,548 and $88,904, respectively. For 2013, Gemini and GSI each received half of the incentive fee in the amount of $15,018. There were no incentive fees earned in 2012 or 2011. As of December 31, 2013 and 2012, there were $36,418 and $36,257, respectively, receivable from Gemini Global Partners, L.P. included in investment advisory fees receivable on the consolidated statements of financial condition. We serve as the investment advisor for the Funds and earn advisory fees based on predetermined percentages of the average net assets of the Funds. In addition, G.distributors has entered into distribution agreements with each of the Funds. As principal distributor, G.distributors incurs certain promotional and distribution costs related to the sale of Fund shares, for which it receives a distribution fee from the Funds or reimbursement from the investment advisor. G.research earns a majority of its commission revenue from transactions executed on behalf of clients of affiliated companies. Advisory and distribution fees receivable from the Funds were approximately $37.2 million and $30.2 million at December 31, 2013 and 2012, respectively. GBL earned approximately $0.9 million, $1.0 million and $1.4 million in 2013, 2012 and 2011, respectively, in advisory fee revenues and approximately $12,000, $13,000 and $15,000 in 2013, 2012 and 2011, respectively, in distribution fees from our proprietary investments in the Funds which are included in investment advisory and incentive fees and distribution fees and other income, respectively, on the consolidated statements of income. Investments in Securities At December 31, 2013 and 2012, approximately $81 million and $85 million, respectively, of our proprietary investment portfolio were managed by our analysts or portfolio managers other than Mr. Gabelli. The individuals managing these accounts receive 20% of the net profits, if any, earned on the accounts; however, some of the analysts are required to meet a hurdle rate of 5% before earning this 20% payout. In August 2006, a son of the Chairman was given responsibility for managing a proprietary investment account on which he would be paid, on an annual basis, 20% of any net profits earned on the account for the year. The account was initially funded with approximately $40 million during 2006. During 2013 and 2012, $2 million and $2 million, respectively, was transferred from this account back to the firm's proprietary account and is no longer subject to the 20% payout. For 2013 and 2012, this account was up 41.9% and 14.3%, respectively, and therefore he earned approximately $1.5 million and $230,000, respectively, for managing this account. For 2011, there was no payout for managing this account. We had an aggregate investment in the Funds of approximately $253.9 million and $254.0 million at December 31, 2013 and 2012, respectively, of which approximately $209.8 million and $190.4 million was invested in an affiliated money market mutual fund, included in cash and cash equivalents, at December 31, 2013 and 2012, respectively. GBL earned approximately $19,000, $52,000, and $45,000 in 2013, 2012 and 2011, respectively, in dividend income from our investment in our money market mutual fund. Distributions from investments in our equity Funds, which are included within interest and dividend income on the consolidated statements of income, were approximately $2.3 million, $1.8 million and $2.2 million, in 2013, 2012 and 2011, respectively. Investments in Partnerships We had an aggregate investment in affiliated partnerships and offshore funds of approximately $82.0 million and $83.9 million at December 31, 2013 and 2012, respectively. Compensation Immediately preceding the Offering and in conjunction with the Reorganization, GBL and our Chairman and CEO entered into an employment agreement. This agreement was amended and approved by shareholders on November 30, 2007 and most recently re-approved by shareholders on May 6, 2011. Under the terms of this agreement and consistent with the firm's practice since its inception in 1977, Mr. Gabelli will also continue receiving a percentage of revenues or net operating contribution, which are substantially derived from AUM, as compensation relating to or generated by the following activities: (i) managing or overseeing the management of various investment companies and partnerships, (ii) attracting mutual fund shareholders, (iii) attracting and managing Institutional and Private Wealth Management clients, and (iv) otherwise generating revenues for the Company. Such payments are made in a manner and at rates as agreed to from time to time by GAMCO, which rates have been and generally will be the same as those received by other professionals at GAMCO performing similar services. With respect to our Institutional and Private Wealth Management and mutual fund advisory business, we pay out up to 40% of the revenues or net operating contribution to the portfolio managers and marketing staff who introduce, service or generate such business, with payments involving the Institutional and Private Wealth Management accounts being typically based on revenues and payments involving the mutual funds being typically based on net operating contribution. Mr. Gabelli has agreed that while he is employed by us he will not provide investment management services outside of GAMCO, except for certain permitted accounts as defined under the agreement. The 2008 Employment Agreement may not be amended without the approval of the Compensation Committee and Mr. Gabelli. The Chairman and CEO receives compensation in the form of a management fee for managing the Company. Additionally, he earns compensation for acting as portfolio manager and/or attracting and providing client service to a large number of GAMCO's Institutional and Private Wealth Management clients, for creating and acting as portfolio manager of several open-end funds, for creating and acting as portfolio manager of the closed-end funds and for providing other services, including acting as portfolio and relationship manager of investment partnerships. Other On May 31, 2006, we entered into an Exchange and Standstill Agreement with Frederick J. Mancheski, a significant shareholder, pursuant to which, among other things, he agreed to exchange his 2,071,635 shares of Class B Stock, which he received on a pari passu basis with his investment in GGCP, for an equal number of shares of Class A Stock. The standstill expires on May 31, 2016. Under the terms of the standstill agreement, Mr. Mancheski agreed to, among other things, vote his shares in favor of the nominees and positions advocated by the Board of Directors. As stated in the latest available Form 13D filed by Mr. Mancheski on December 20, 2012, he continues to exercise voting control over 1,725,974 shares of Class A Stock. For 2013, 2012, and 2011, we incurred variable costs of $483,000, $450,000, and $586,000, respectively, for actual usage (but not the fixed costs) relating to our use of aircraft in which GGCP owns the fractional interests. As required by our Code of Ethics, our staff members are required to maintain their brokerage accounts at G.research unless they receive permission to maintain an outside account. G.research offers its entire staff the opportunity to engage in brokerage transactions at discounted commission rates. Accordingly, many of our staff members, including the executive officers or entities controlled by them, have brokerage accounts at G.research and have engaged in securities transactions at discounted rates. G.research also participates in syndicated underwriting activities, some of which involve the issuance of preferred or common shares of Gabelli closed-end funds. During 2013, G.research participated as agent in the at the market offerings of The GAMCO Global Gold, Natural Resources & Income Trust and acted as Dealer Manager for The Gabelli Global Utility and Income Trust's Series A Preferred Share Rights Offering, and acted as co-manager in The GAMCO Global Gold, Natural Resources & Income Trust 5% Series B Cumulative Preferred Stock Offering. During 2012, G.research participated as agent in the secondary offerings of The GAMCO Global Gold, Natural Resources & Income Trust and acted as Dealer Manager for The Gabelli Equity Trust's Series F Cumulative Preferred Rights Offering, and acted as co-underwriter for The Gabelli Equity Trust's Series H Cumulative Preferred Stock Offering. During 2011, G.research participated as agent in the secondary offerings of The GAMCO Global Gold, Natural Resources & Income Trust. During 2013, 2012 and 2011 there were $0.8 million, $3.0 million and $3.2 million, respectively, included in institutional research services on the consolidated statements of income. GBL and Teton entered into a transitional administrative and management service agreement in connection with the spin-off of Teton from GBL that formalized certain arrangements. Effective January 1, 2011, Teton and GBL renegotiated the terms of the sub-administration agreement from a flat 0.20% on the average net assets of the mutual funds managed by Teton to 0.20% on the first $370 million in average net assets, 0.12% on the next $630 million in average net assets and 0.10% on average net assets in excess of $1 billion, as compensation for providing mutual fund administration services and $15,000 per month for various administrative services. Prior to the spin-off these fees were eliminated in consolidation. During 2013, 2012 and 2011, there was $1.8 million, $1.5 million and $1.5 million, respectively, included in distribution fees and other income on the consolidated statements of income.

L. Related Party Transactions

The following is a summary of certain related party transactions.

GGCP Holdings LLC owns a majority of our Class B Stock, representing approximately 1% of the combined voting power and 1% of the outstanding shares of our common stock at December 31, 2013.

Capital Lease

We lease an approximately 60,000 square foot building located at 401 Theodore Fremd Avenue, Rye, New York as our headquarters (the "Building") from an entity controlled by members of the Chairman's family. See Note I.

We sub-lease approximately 3,300 square feet in the Building to LICT Corporation, a company for which Mr. Gabelli serves as Chairman and CEO, which pays rent at the rate of $28 per square foot plus $3 per square foot for electricity, subject to adjustment for increases in taxes and other operating expenses. The total amounts paid in 2013, 2012, and 2011 for rent and other expenses under this lease were $116,527, $114,716, and $119,025, respectively. Concurrent with the extension of the lease on the Building during 2008, we and LICT Corporation further agreed to extend the term of the sub-lease until December 2023 on the same terms and conditions. As of July 1, 2008, we also sub-lease approximately 1,600 square feet in the Building to Teton. Teton pays rent at the rate of $37.75 per square foot plus $3 per square foot for electricity, subject to adjustment for increases in taxes and other operating expenses. The total amount paid in 2013, 2012 and 2011 for rent and other expenses under this lease were $68,189, $67,361 and $69,330, respectively, and were recorded in other operating expenses as a credit on the consolidated statements of income.

Investment Advisory Services

GAMCO has entered into agreements to provide advisory and administrative services to MJG Associates, Inc., which is wholly-owned by Mr. Gabelli, with respect to the private investment funds managed by them. Pursuant to such agreements, MJG Associates, Inc. paid GAMCO $10,000 (excluding reimbursement of expenses) for each of the years 2013, 2012, and 2011. For 2013, 2012 and 2011, Manhattan Partners I, L.P. and Manhattan Partners II, L.P., investment partnerships for which John Gabelli Inc., an entity owned by John Gabelli, a brother of our Chairman, is the general partner, paid GAMCO investment advisory fees in the amount of $21,601, $21,660 and $19,608, respectively, and Manhattan Partners I, L.P. paid management fees in the amount of $0, $0 and $10,665, respectively, to the general partners of Gemini Global Partners, L.P. In addition, an entity that Mr. John Gabelli's wife is the sole shareholder of is the co-general partner of S.W.A.N. Partners, LP ("S.W.A.N."). S.W.A.N. paid GAMCO investment advisory fees in the amount of $32,740, $35,649 and $36,466 for 2013, 2012 and 2011, respectively, and is included in investment advisory and incentive fees on the consolidated statements of income.

Gabelli Securities International Limited ("GS International") was formed in 1994 to provide management and investment advisory services to offshore funds and accounts. Mr. Marc Gabelli, who is a son of our Chairman, owns 55% of GS International and GSI owns the remaining 45%. In 1994, Gabelli International Gold Fund Limited ("GIGFL"), an offshore investment company investing primarily in securities of issuers with gold-related activities, was formed and GS International entered into an agreement to provide management services to GIGFL. GSI in turn entered into an agreement with GS International to provide investment advisory services to GIGFL in return for receiving all investment management fees paid by GIGFL. Pursuant to such agreement, GSI received investment management fees of $13,478 and no incentive fees for 2013. Comparable amounts for 2012 were $23,192 and $0, respectively, and for 2011 they were $32,203 and $0, respectively. As of December 31, 2013 and 2012, there were $50,639 and $11,957, respectively, payable to GIGFL included in accrued expenses and other liabilities on the consolidated statements of financial condition relating to management fees.

In April 1999, Gabelli Global Partners, Ltd. ("GGP Ltd."), an offshore investment fund, was incorporated. GS International and Gemini Capital Management, LLC ("Gemini"), an entity owned by Mr. Marc Gabelli, were engaged by GGP Ltd. as investment advisors as of July 1, 1999. GGP Ltd. paid all of the management fees for 2013 and 2012 in the amounts of $148,909 and $80,761, respectively, to GS International. For 2013, GGP Ltd. paid all of the incentive fees in the amount of $31,217 to GSI International. There were no incentive fees earned in 2012. For 2011, Gemini received half of the management fees paid by GGP Ltd. in the amount of $45,668. As of December 31, 2013 and 2012, there were $0 and $59,390, respectively, receivable from GGP Ltd. included in investment advisory fees receivable on the consolidated statements of financial condition.

In April 1999, GSI formed Gabelli Global Partners, L.P., an investment limited partnership for which GSI and Gemini are the general partners. In March 2002, Gabelli Global Partners, L.P. changed its name to Gemini Global Partners, L.P. Gemini and GSI each received half of the management fee paid by the partnership to the general partners in 2013, 2012 and 2011 in the amounts of $76,776, $76,548 and $88,904, respectively. For 2013, Gemini and GSI each received half of the incentive fee in the amount of $15,018. There were no incentive fees earned in 2012 or 2011. As of December 31, 2013 and 2012, there were $36,418 and $36,257, respectively, receivable from Gemini Global Partners, L.P. included in investment advisory fees receivable on the consolidated statements of financial condition.

We serve as the investment advisor for the Funds and earn advisory fees based on predetermined percentages of the average net assets of the Funds. In addition, G.distributors has entered into distribution agreements with each of the Funds. As principal distributor, G.distributors incurs certain promotional and distribution costs related to the sale of Fund shares, for which it receives a distribution fee from the Funds or reimbursement from the investment advisor. G.research earns a majority of its commission revenue from transactions executed on behalf of clients of affiliated companies. Advisory and distribution fees receivable from the Funds were approximately $37.2 million and $30.2 million at December 31, 2013 and 2012, respectively. GBL earned approximately $0.9 million, $1.0 million and $1.4 million in 2013, 2012 and 2011, respectively, in advisory fee revenues and approximately $12,000, $13,000 and $15,000 in 2013, 2012 and 2011, respectively, in distribution fees from our proprietary investments in the Funds which are included in investment advisory and incentive fees and distribution fees and other income, respectively, on the consolidated statements of income.

Investments in Securities

At December 31, 2013 and 2012, approximately $81 million and $85 million, respectively, of our proprietary investment portfolio were managed by our analysts or portfolio managers other than Mr. Gabelli. The individuals managing these accounts receive 20% of the net profits, if any, earned on the accounts; however, some of the analysts are required to meet a hurdle rate of 5% before earning this 20% payout. In August 2006, a son of the Chairman was given responsibility for managing a proprietary investment account on which he would be paid, on an annual basis, 20% of any net profits earned on the account for the year. The account was initially funded with approximately $40 million during 2006. During 2013 and 2012, $2 million and $2 million, respectively, was transferred from this account back to the firm's proprietary account and is no longer subject to the 20% payout. For 2013 and 2012, this account was up 41.9% and 14.3%, respectively, and therefore he earned approximately $1.5 million and $230,000, respectively, for managing this account. For 2011, there was no payout for managing this account.

We had an aggregate investment in the Funds of approximately $253.9 million and $254.0 million at December 31, 2013 and 2012, respectively, of which approximately $209.8 million and $190.4 million was invested in an affiliated money market mutual fund, included in cash and cash equivalents, at December 31, 2013 and 2012, respectively. GBL earned approximately $19,000, $52,000, and $45,000 in 2013, 2012 and 2011, respectively, in dividend income from our investment in our money market mutual fund. Distributions from investments in our equity Funds, which are included within interest and dividend income on the consolidated statements of income, were approximately $2.3 million, $1.8 million and $2.2 million, in 2013, 2012 and 2011, respectively.

Investments in Partnerships

We had an aggregate investment in affiliated partnerships and offshore funds of approximately $82.0 million and $83.9 million at December 31, 2013 and 2012, respectively.

Compensation

Immediately preceding the Offering and in conjunction with the Reorganization, GBL and our Chairman and CEO entered into an employment agreement. This agreement was amended and approved by shareholders on November 30, 2007 and most recently re-approved by shareholders on May 6, 2011.

Under the terms of this agreement and consistent with the firm's practice since its inception in 1977, Mr. Gabelli will also continue receiving a percentage of revenues or net operating contribution, which are substantially derived from AUM, as compensation relating to or generated by the following activities: (i) managing or overseeing the management of various investment companies and partnerships, (ii) attracting mutual fund shareholders, (iii) attracting and managing Institutional and Private Wealth Management clients, and (iv) otherwise generating revenues for the Company. Such payments are made in a manner and at rates as agreed to from time to time by GAMCO, which rates have been and generally will be the same as those received by other professionals at GAMCO performing similar services. With respect to our Institutional and Private Wealth Management and mutual fund advisory business, we pay out up to 40% of the revenues or net operating contribution to the portfolio managers and marketing staff who introduce, service or generate such business, with payments involving the Institutional and Private Wealth Management accounts being typically based on revenues and payments involving the mutual funds being typically based on net operating contribution.

Mr. Gabelli has agreed that while he is employed by us he will not provide investment management services outside of GAMCO, except for certain permitted accounts as defined under the agreement. The 2008 Employment Agreement may not be amended without the approval of the Compensation Committee and Mr. Gabelli.

The Chairman and CEO receives compensation in the form of a management fee for managing the Company. Additionally, he earns compensation for acting as portfolio manager and/or attracting and providing client service to a large number of GAMCO's Institutional and Private Wealth Management clients, for creating and acting as portfolio manager of several open-end funds, for creating and acting as portfolio manager of the closed-end funds and for providing other services, including acting as portfolio and relationship manager of investment partnerships.

Other

On May 31, 2006, we entered into an Exchange and Standstill Agreement with Frederick J. Mancheski, a significant shareholder, pursuant to which, among other things, he agreed to exchange his 2,071,635 shares of Class B Stock, which he received on a pari passu basis with his investment in GGCP, for an equal number of shares of Class A Stock. The standstill expires on May 31, 2016. Under the terms of the standstill agreement, Mr. Mancheski agreed to, among other things, vote his shares in favor of the nominees and positions advocated by the Board of Directors. As stated in the latest available Form 13D filed by Mr. Mancheski on December 20, 2012, he continues to exercise voting control over 1,725,974 shares of Class A Stock.

For 2013, 2012, and 2011, we incurred variable costs of $483,000, $450,000, and $586,000, respectively, for actual usage (but not the fixed costs) relating to our use of aircraft in which GGCP owns the fractional interests.

As required by our Code of Ethics, our staff members are required to maintain their brokerage accounts at G.research unless they receive permission to maintain an outside account. G.research offers its entire staff the opportunity to engage in brokerage transactions at discounted commission rates. Accordingly, many of our staff members, including the executive officers or entities controlled by them, have brokerage accounts at G.research and have engaged in securities transactions at discounted rates.

G.research also participates in syndicated underwriting activities, some of which involve the issuance of preferred or common shares of Gabelli closed-end funds. During 2013, G.research participated as agent in the at the market offerings of The GAMCO Global Gold, Natural Resources & Income Trust and acted as Dealer Manager for The Gabelli Global Utility and Income Trust's Series A Preferred Share Rights Offering, and acted as co-manager in The GAMCO Global Gold, Natural Resources & Income Trust 5% Series B Cumulative Preferred Stock Offering. During 2012, G.research participated as agent in the secondary offerings of The GAMCO Global Gold, Natural Resources & Income Trust and acted as Dealer Manager for The Gabelli Equity Trust's Series F Cumulative Preferred Rights Offering, and acted as co-underwriter for The Gabelli Equity Trust's Series H Cumulative Preferred Stock Offering. During 2011, G.research participated as agent in the secondary offerings of The GAMCO Global Gold, Natural Resources & Income Trust. During 2013, 2012 and 2011 there were $0.8 million, $3.0 million and $3.2 million, respectively, included in institutional research services on the consolidated statements of income.

GBL and Teton entered into a transitional administrative and management service agreement in connection with the spin-off of Teton from GBL that formalized certain arrangements. Effective January 1, 2011, Teton and GBL renegotiated the terms of the sub-administration agreement from a flat 0.20% on the average net assets of the mutual funds managed by Teton to 0.20% on the first $370 million in average net assets, 0.12% on the next $630 million in average net assets and 0.10% on average net assets in excess of $1 billion, as compensation for providing mutual fund administration services and $15,000 per month for various administrative services. Prior to the spin-off these fees were eliminated in consolidation. During 2013, 2012 and 2011, there was $1.8 million, $1.5 million and $1.5 million, respectively, included in distribution fees and other income on the consolidated statements of income.