Earnings per Share (Tables)

12 Months Ended

Dec. 31, 2018

Earnings per Share [Abstract]

Computations of Basic and Diluted Net Income per Share

The computations of basic and diluted net income per share are as follows:

	For the Years Ending December 31,
(In thousands, except per share amounts)	2018		2017		2016
Basic:
Net income attributable to GAMCO Investors, Inc.'s shareholders	$	117,196	$	77,809	$	117,121
Weighted average shares outstanding		28,744		28,980		29,182
Basic net income per share attributable to GAMCO
Investors, Inc.'s shareholders	$	4.08	$	2.68	$	4.01
Diluted:
Net income attributable to GAMCO Investors, Inc.'s shareholders	$	117,196	$	77,809	$	117,121
Add interest on convertible notes, net of management fee and taxes		-		2,604		1,133
Total income attributable to GAMCO Investors, Inc.'s shareholders		117,196		80,413		118,254
Weighted average share outstanding		28,744		28,980		29,182
Restricted stock awards		33		192		234
Assumed conversion of convertible note		-		1,775		754
Total		28,777		30,947		30,170
Diluted net income per share attributable to GAMCO
Investors, Inc.'s shareholders	$	4.07	$	2.60	$	3.92