Business Segment and Revenues Information - Business Segment and Revenues Information (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | |||
|---|---|---|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
Dec. 31, 2025 |
|
| Segment Reporting | |||||
| Net income attributable to Piper Sandler Companies | $ 55,415 | $ 60,266 | $ 188,502 | $ 167,363 | |
| Total assets | 2,431,559 | 2,431,559 | $ 2,592,646 | ||
| Total investment banking | 331,680 | 329,346 | 1,041,397 | 886,604 | |
| Total institutional brokerage | 114,276 | 110,732 | 336,653 | 327,121 | |
| Total revenues from contracts with customers | 445,956 | 440,078 | 1,378,050 | 1,213,725 | |
| Interest income | 11,241 | 9,374 | 31,991 | 27,284 | |
| Investment income/(loss) | (13,545) | 30,642 | 5,010 | (3,784) | |
| Total revenues | 443,652 | 480,094 | 1,415,051 | 1,237,225 | |
| Interest expense | 605 | 818 | 2,080 | 3,899 | |
| Net revenues | 443,047 | 479,276 | 1,412,971 | 1,233,326 | |
| Advisory services | |||||
| Segment Reporting | |||||
| Total investment banking | 250,258 | 211,544 | 775,431 | 633,185 | |
| Corporate financing | |||||
| Segment Reporting | |||||
| Total investment banking | 56,629 | 79,301 | 167,749 | 146,608 | |
| Municipal financing | |||||
| Segment Reporting | |||||
| Total investment banking | 24,793 | 38,501 | 98,217 | 106,811 | |
| Equity brokerage | |||||
| Segment Reporting | |||||
| Total institutional brokerage | 54,498 | 53,750 | 177,875 | 166,087 | |
| Fixed income services | |||||
| Segment Reporting | |||||
| Total institutional brokerage | $ 59,778 | $ 56,982 | $ 158,778 | $ 161,034 | |
| X | ||||||||||
- Definition Includes (1) commissions received from customers for the execution of brokerage transactions in over-the-counter equity, fixed income and convertible debt securities; (2) trading gains and losses; and (3) fees received for equity research. No definition available.
|
| X | ||||||||||
- Definition Includes realized and unrealized gains (losses) recorded on the Company's merchant banking and other firm investments. Additionally includes mgmt fees on the Company's internally managed funds. No definition available.
|
| X | ||||||||||
- Definition Amount of the cost of borrowed funds and interest expense related to cash instruments, collateralized securities transactions, borrowings and other financial liabilities. No definition available.
|
| X | ||||||||||
- Definition Amount of asset recognized for present right to economic benefit. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of operating interest income, including, but not limited to, amortization and accretion of premiums and discounts on securities. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Includes (1) underwriting revenue (the spread between the resale price received and the cost of the securities and related expenses) generated through the purchasing, distributing and reselling of new issues of securities (alternatively, could be a secondary offering of a large block of previously issued securities); and (2) fees earned for mergers, acquisitions, divestitures, restructurings, and other types of financial advisory services. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income after deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|