Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Revenues:
Investment banking	$ 158,998	$ 141,061
Institutional brokerage	89,143	34,965
Interest income	6,065	7,567
Investment income/(loss)	(13,826)	1,592
Total revenues	240,380	185,185
Interest expense	4,212	2,643
Net revenues	236,168	182,542
Non-interest expenses:
Compensation and benefits	188,124	117,127
Outside services	8,439	8,571
Occupancy and equipment	12,238	8,349
Communications	11,634	7,865
Marketing and business development	10,039	6,738
Deal-related expenses	4,940	4,728
Trade execution and clearance	7,151	1,806
Restructuring and integration costs	1,902	0
Intangible asset amortization	9,878	753
Other operating expenses	15,852	3,468
Total non-interest expenses	270,197	159,405
Income/(loss) from continuing operations before income tax expense/(benefit)	(34,029)	23,137
Income tax expense/(benefit)	(11,774)	4,192
Income/(loss) from continuing operations	(22,255)	18,945
Loss from discontinued operations, net of tax	0	(139)
Net income/(loss)	(22,255)	18,806
Net loss applicable to noncontrolling interests	(7,528)	(616)
Net income/(loss) applicable to Piper Sandler Companies	(14,727)	19,422
Net income/(loss) applicable to Piper Sandler Companies' common shareholders	(14,727)	17,835
Amounts applicable to Piper Sandler Companies
Net income/(loss) from continuing operations	(14,727)	19,561
Net loss from discontinued operations	0	(139)
Net income/(loss) applicable to Piper Sandler Companies	$ (14,727)	$ 19,422
Earnings/(loss) per basic common share
Income/(loss) from continuing operations (in dollars per share)	$ (1.07)	$ 1.36
Loss from discontinued operations (in dollars per share)	0	(0.01)
Earnings/(loss) per basic common share (in dollars per share)	(1.07)	1.35
Earnings/(loss) per diluted common share
Income/(loss) from continuing operations (in dollars per share)	(1.07)	1.33
Loss from discontinued operations (in dollars per share)	0	(0.01)
Earnings/(loss) per diluted common share (in dollars per share)	(1.07)	1.32
Dividends declared per common share (in dollars per share)	$ 1.13	$ 1.39
Weighted average common shares outstanding
Basic (in shares)	13,796	13,204
Diluted (in shares)	14,411	13,530