Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2018

Earnings Per Share [Abstract]

Earnings Per Share, Basic and Diluted

The computation of earnings per share is as follows:

	Three Months Ended June 30,				Six Months Ended June 30,
	2018		2017		2018		2017
	(in thousands, except share and per share data)
Net income (loss)	$	30,006	$	28,585	$	58,015	$	40,674
Net income (loss) attributable to redeemable non-controlling interests in consolidated subsidiaries and funds	24,607		21,145		35,763		30,250
Net income (loss) attributable to Cowen Inc.	5,399		7,440		22,252		10,424
Preferred stock dividends	1,698		1,698		3,396		3,396
Net income (loss) attributable to Cowen Inc. common stockholders	$	3,701	$	5,742	$	18,856	$	7,028
Shares for basic and diluted calculations:
Weighted average shares used in basic computation	29,769		28,634		29,688		27,852
Stock options			—		—		—
Stock appreciation rights	—		14		—		13
Restricted stock	951		826		772		995
Weighted average shares used in diluted computation	30,720		29,474		30,460		28,860
Earnings (loss) per share:
Basic	$	0.12	$	0.20	$	0.64	$	0.25
Diluted	$	0.12	$	0.19	$	0.62	$	0.24