Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Revenues:
Investment banking	$ 1,009,509	$ 1,553,219	$ 858,476
Institutional brokerage	405,267	387,577	357,753
Interest income	20,365	6,967	13,164
Investment income/(loss)	(23)	94,032	23,265
Total revenues	1,435,118	2,041,795	1,252,658
Interest expense	9,480	10,734	14,445
Net revenues	1,425,638	2,031,061	1,238,213
Non-interest expenses:
Compensation and benefits	983,524	1,305,166	877,462
Outside services	53,189	45,942	38,377
Occupancy and equipment	64,252	56,946	54,007
Communications	50,565	44,008	44,358
Marketing and business development	42,849	20,902	13,472
Deal-related expenses	31,874	42,921	38,072
Trade execution and clearance	20,185	16,533	18,934
Restructuring and integration costs	11,440	4,724	10,755
Intangible asset amortization	15,375	30,080	44,728
Other operating expenses	18,016	22,327	29,500
Total non-interest expenses	1,291,269	1,589,549	1,169,665
Income before income tax expense	134,369	441,512	68,548
Income tax expense	33,189	111,144	19,192
Net income	101,180	330,368	49,356
Net income/(loss) applicable to noncontrolling interests	(9,494)	51,854	8,852
Net income applicable to Piper Sandler Companies	$ 110,674	$ 278,514	$ 40,504
Earnings per common share
Earnings Per Share, Basic	$ 7.92	$ 19.52	$ 2.94
Earnings Per Share, Diluted	6.52	16.43	2.72
Dividends declared per common share	$ 6.90	$ 6.80	$ 2.00
Weighted average number of common shares outstanding
Basic (in shares)	13,982	14,265	13,781
Diluted (in shares)	16,965	16,955	14,901