DESCRIPTION OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Schedule of Concentration of Credit Risk (Details) - Customer Concentration Risk - Revenue Benchmark |
3 Months Ended | |
|---|---|---|
Mar. 31, 2023 |
Mar. 31, 2022 |
|
| Citadel Securities, LLC | ||
| Concentration Risk [Line Items] | ||
| Concentration risk, percentage | 13.00% | 22.00% |
| Entities affiliated with Susquehanna International Group, LLP | ||
| Concentration Risk [Line Items] | ||
| Concentration risk, percentage | 5.00% | 12.00% |
| Entities affiliated with Wolverine Holdings, L.P. | ||
| Concentration Risk [Line Items] | ||
| Concentration risk, percentage | 5.00% | 10.00% |
| All others individually less than 10% | ||
| Concentration Risk [Line Items] | ||
| Concentration risk, percentage | 22.00% | 28.00% |
| Total as percentage of total revenue | ||
| Concentration Risk [Line Items] | ||
| Concentration risk, percentage | 45.00% | 72.00% |