CONDENSED CONSOLIDATED STATEMENTS OF EQUITY AND COMPREHENSIVE INCOME UNAUDITED (USD $) In Thousands	Total	Noncontrolling Interests [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income [Member]	Treasury Stock [Member]	Redeemable Noncontrolling Interests [Member]	Comprehensive Income [Member]
Balance at Dec. 31, 2009	$ 443,661	$ 4,043	$ 33	$ 251,591	$ 410,473	$ 19,088	$ (241,567)	$ 1,464	$ 0
Redemptions of redeemable noncontrolling interests	0	0	0	0	0	0	0	(475)	0
Contributions from redeemable noncontrolling interests	0	0	0	0	0	0	0	14,700	0
Dividends paid to noncontrolling interests	(829)	(829)	0	0	0	0	0	0	0
Net income	42,352	166	0	0	41,881	0	0	305	42,352
Net unrealized gains on securities available for sale, net of income tax	220	0	0	0	0	220	0	0	220
Foreign currency translation	(2)	0	0	0	0	(2)	0	0	(2)
Dividends declared	(26,971)	0	0	0	(26,971)	0	0	0	0
Stock based compensation expense	4,221	0	0	4,221	0	0	0	0	0
Exercise of stock options including tax benefit	48	0	0	48	0	0	0	0	0
Purchase of treasury stock	(17,875)	0	0	0	0	0	(17,875)	0	0
Comprehensive income attributable to noncontrolling interest									(471)
Total comprehensive income attributable to GAMCO Investors, Inc.									42,099
Balance at Sep. 30, 2010	444,520	3,380	33	255,860	425,383	19,306	(259,442)	15,994	42,570
Balance at Dec. 31, 2010	389,608	3,579	33	262,108	370,272	25,389	(271,773)	26,984	0
Redemptions of redeemable noncontrolling interests	0	0	0	0	0	0	0	(2,340)	0
Contributions from redeemable noncontrolling interests	0	0	0	0	0	0	0	17,490	0
Deconsolidation of Partnership		0	0	0	0	0	0	(4,103)	0
Net income	46,129	121	0	0	45,989	0	0	19	46,129
Net unrealized gains on securities available for sale, net of income tax	(6,969)	0	0	0	0	(6,969)	0	0	(6,969)
Foreign currency translation	5	0	0	0	0	5	0	0	5
Dividends declared	(2,966)	0	0	0	(2,966)	0	0	0	0
Stock based compensation expense	1,920	0	0	1,920	0	0	0	0	0
Purchase of treasury stock	(20,008)	0	0	0	0	0	(20,008)	0	0
Comprehensive income attributable to noncontrolling interest									(140)
Total comprehensive income attributable to GAMCO Investors, Inc.									39,025
Balance at Sep. 30, 2011	$ 407,700	$ 3,700	$ 33	$ 264,028	$ 413,295	$ 18,425	$ (291,781)	$ 38,050	$ 39,165

This element represents the amount of recognized equity-based compensation during the period, that is, the amount recognized as expense in the income statement (or as asset if compensation is capitalized). Alternate captions include the words "stock-based compensation".

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