Cash and Cash Equivalents and Restricted Cash (Tables)

12 Months Ended

Dec. 31, 2024

Cash and Cash Equivalents [Abstract]

Summary of Reconciliation of Cash and Cash Equivalents with Restricted or Segregated Cash

The following table provides a reconciliation of cash and cash equivalents together with restricted or segregated cash as reported within the Consolidated Statements of Financial Condition to the sum of the same such amounts shown in the Consolidated Statements of Cash Flows:

		As of December 31,
	Statement of Financial Condition Location	2024		2023		2022
		(In thousands)
Cash and cash equivalents	Cash and cash equivalents	$	544,478	$	451,280	$	430,746
Cash segregated for regulatory    purposes	Cash segregated under federal    regulations		47,107		45,122		50,947
Restricted cash deposits with clearing    organizations and broker-dealers	Receivables from broker-dealers,    clearing organizations    and customers		107,652		115,151		88,923
Other cash deposits	Prepaid expenses and other assets		1,222		119		2,048
Total		$	700,459	$	611,672	$	572,664