v3.26.1
Business Segment and Revenues Information - Business Segment and Revenues Information (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Segment Reporting          
Net income attributable to Piper Sandler Companies $ 67,845 $ 42,182 $ 133,087 $ 107,097  
Total assets 2,326,856   2,326,856   $ 2,592,646
Total investment banking 361,527 280,994 709,717 557,258  
Total institutional brokerage 111,532 114,465 222,377 216,389  
Total revenues from contracts with customers 473,059 395,459 932,094 773,647  
Interest income 9,104 7,947 20,750 17,910  
Investment income/(loss) 14,091 (4,829) 18,555 (34,426)  
Total revenues 496,254 398,577 971,399 757,131  
Interest expense 739 1,799 1,475 3,081  
Net revenues 495,515 396,778 969,924 754,050  
Advisory services          
Segment Reporting          
Total investment banking 274,211 204,841 525,173 421,641  
Corporate financing          
Segment Reporting          
Total investment banking 37,805 34,246 111,120 67,307  
Municipal financing          
Segment Reporting          
Total investment banking 49,511 41,907 73,424 68,310  
Equity brokerage          
Segment Reporting          
Total institutional brokerage 62,907 58,083 123,377 112,337  
Fixed income services          
Segment Reporting          
Total institutional brokerage $ 48,625 $ 56,382 $ 99,000 $ 104,052