Nature of Operations, Basis of Presentation, and Summary of Significant Accounting Policies (Narrative) (Details) $ in Millions |
3 Months Ended | ||
|---|---|---|---|
|
Feb. 26, 2026
USD ($)
|
Jan. 26, 2026 |
Mar. 31, 2026
Segment
|
|
| Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] | |||
| Number of reportable segments | Segment | 3 | ||
| Stifel Independent Advisors, LLC [Member] | |||
| Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] | |||
| Gain on the sale | $ | $ 49.8 | ||
| O2026 Q1 Dividends [Member] | |||
| Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] | |||
| Dividend declared date | Jan. 26, 2026 | ||
| Stock split term | three-for-two | ||
| Dividend Declared Percentage | 50.00% | ||
| Dividend payable date | Feb. 26, 2026 | ||
| Dividend record date | Feb. 12, 2026 | ||
| Stock split description | three-for-two |