Regulatory Capital Requirements	3 Months Ended
Mar. 31, 2023
Broker-Dealer [Abstract]
Regulatory Capital Requirements	3. Regulatory Capital Requirements One of the Company’s U.S. subsidiaries is registered as a broker-dealer and therefore is subject to the applicable rules and regulations of the SEC and the Financial Industry Regulatory Authority (“FINRA”). These rules contain minimum net capital requirements, as defined in the applicable regulations. Certain of the Company’s foreign subsidiaries are regulated by the Financial Conduct Authority (“FCA”) in the U.K. or other foreign regulators and must maintain financial resources, as defined in the applicable regulations, in excess of the applicable financial resources requirement. As of March 31, 2023, each of the Company’s subsidiaries that are subject to these regulations had net capital or financial resources in excess of their minimum requirements. As of March 31, 2023, the Company’s subsidiaries maintained aggregate net capital and financial resources that were $541.0 million in excess of the required levels of $29.0 million. The Company’s U.S. broker-dealer subsidiary is required to segregate funds in a special reserve bank account for the benefit of customers pursuant to Rule 15c3-3 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). As of March 31, 2023, the U.S. broker-dealer subsidiary had a balance of $51.5 million in its special reserve bank account. This U.S. broker-dealer subsidiary also maintained net capital that was $325.5 million in excess of the required level of $4.2 million. Each of the Company’s U.S. and foreign regulated subsidiaries are subject to local regulations which generally limit, or require the prior notification to or approval from such regulated entity’s principal regulator before, the repayment of borrowings from the Company or affiliates, paying cash dividends, making loans to the Company or affiliates or otherwise entering into transactions that result in a significant reduction in regulatory net capital or financial resources.

Regulatory Capital Requirements

3 Months Ended

Mar. 31, 2023

3. Regulatory Capital Requirements

One of the Company’s U.S. subsidiaries is registered as a broker-dealer and therefore is subject to the applicable rules and regulations of the SEC and the Financial Industry Regulatory Authority (“FINRA”). These rules contain minimum net capital requirements, as defined in the applicable regulations. Certain of the Company’s foreign subsidiaries are regulated by the Financial Conduct Authority (“FCA”) in the U.K. or other foreign regulators and must maintain financial resources, as defined in the applicable regulations, in excess of the applicable financial resources requirement. As of March 31, 2023, each of the Company’s subsidiaries that are subject to these regulations had net capital or financial resources in excess of their minimum requirements. As of March 31, 2023, the Company’s subsidiaries maintained aggregate net capital and financial resources that were $541.0 million in excess of the required levels of $29.0 million.

The Company’s U.S. broker-dealer subsidiary is required to segregate funds in a special reserve bank account for the benefit of customers pursuant to Rule 15c3-3 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). As of March 31, 2023, the U.S. broker-dealer subsidiary had a balance of $51.5 million in its special reserve bank account. This U.S. broker-dealer subsidiary also maintained net capital that was $325.5 million in excess of the required level of $4.2 million.

Each of the Company’s U.S. and foreign regulated subsidiaries are subject to local regulations which generally limit, or require the prior notification to or approval from such regulated entity’s principal regulator before, the repayment of borrowings from the Company or affiliates, paying cash dividends, making loans to the Company or affiliates or otherwise entering into transactions that result in a significant reduction in regulatory net capital or financial resources.