Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 2018

Earnings Per Share [Abstract]

Earnings Per Share, Basic and Diluted

The computation of earnings per share is as follows:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2018		2017		2018		2017
	(in thousands, except share and per share data)
Net income (loss)	$	20,778	$	9,828	$	78,793	$	50,502
Net income (loss) attributable to redeemable non-controlling interests in consolidated subsidiaries and funds	5,290		5,162		41,053		35,412
Net income (loss) attributable to Cowen Inc.	15,488		4,666		37,740		15,090
Preferred stock dividends	1,698		1,698		5,094		5,094
Net income (loss) attributable to Cowen Inc. common stockholders	$	13,790	$	2,968	$	32,646	$	9,996
Shares for basic and diluted calculations:
Weighted average shares used in basic computation	29,610		31,271		29,662		29,004
Stock options			—		—		—
Stock appreciation rights	—		20		—		15
Restricted stock	1,234		955		951		992
Weighted average shares used in diluted computation	30,844		32,246		30,613		30,011
Earnings (loss) per share:
Basic	$	0.47	$	0.09	$	1.10	$	0.34
Diluted	$	0.45	$	0.09	$	1.07	$	0.33