CONDENSED CONSOLIDATED STATEMENTS OF INCOME UNAUDITED - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Revenues
Investment advisory and incentive fees	$ 82,182	$ 92,591	$ 257,563	$ 270,544
Distribution fees and other income	12,301	15,727	39,402	46,367
Institutional research services	2,063	2,540	6,130	6,720
Total revenues	96,546	110,858	303,095	323,631
Expenses
Compensation	39,731	43,316	127,627	131,258
Management fee	2,682	3,756	11,360	13,628
Distribution costs	12,344	15,101	39,747	44,087
Other operating expenses	5,593	5,099	19,271	17,036
Total expenses	60,350	67,272	198,005	206,009
Operating income	36,196	43,586	105,090	117,622
Other income (expense)
Net gain from investments	(11,467)	(9,086)	(614)	7,468
Interest and dividend income	884	1,084	3,227	3,557
Interest expense	(1,917)	(1,987)	(5,899)	(6,000)
Total other income, net	(12,500)	(9,989)	(3,286)	5,025
Income before income taxes	23,696	33,597	101,804	122,647
Income tax provision	9,245	13,045	38,547	44,796
Net income	14,451	20,552	63,257	77,851
Net income attributable to noncontrolling interests	(518)	(3,113)	(589)	(2,718)
Net income attributable to GAMCO Investors, Inc.'s shareholders	$ 14,969	$ 23,665	$ 63,846	$ 80,569
Net income attributable to GAMCO Investors, Inc.'s shareholders
Basic (in dollars per share)	$ 0.60	$ 0.94	$ 2.55	$ 3.17
Diluted (in dollars per share)	$ 0.59	$ 0.93	$ 2.52	$ 3.15
Weighted average shares outstanding:
Basic (in shares)	24,947	25,296	25,047	25,385
Diluted (in shares)	25,241	25,517	25,337	25,595
Dividends declared: (in dollars per share)	$ 0.07	$ 0.06	$ 0.21	$ 0.18