Revenues from Contracts with Customers (Tables)

6 Months Ended

Jun. 30, 2020

Revenue From Contract With Customer [Abstract]

Summary of Revenues from Contracts with Customers and Other Sources of Revenues

The following table presents the Company’s total revenues separated between revenues from contracts with customers and other sources of revenues (in thousands):

	Three Months Ended June 30,				Six Months Ended June 30,
	2020		2019		2020		2019
Revenues from contracts with customers:
Commissions	$	382,640	$	422,974	$	838,495	$	853,156
Data, software, and post-trade		20,139		18,741		39,537		36,651
Fees from related parties		6,562		7,221		12,083		13,016
Other revenues		3,391		3,453		7,350		5,300
Total revenues from contracts with customers		412,732		452,389		897,465		908,123
Other sources of revenues:
Principal transactions		99,453		90,432		212,764		174,662
Interest and dividend income		6,536		7,813		10,697		11,478
Other revenues		367		553		1,329		1,675
Total revenues	$	519,088	$	551,187	$	1,122,255	$	1,095,938