Revenues from Contracts with Customers (Tables)

12 Months Ended

Dec. 31, 2021

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):

	Year Ended December 31,
	2021		2020		2019
Revenues from contracts with customers:
Commissions	$	1,541,900	$	1,567,668	$	1,645,818
Data, software, and post-trade	89,963		81,920		73,166
Fees from related parties	14,856		25,754		29,442
Other revenues	16,818		14,948		12,806
Total revenues from contracts with customers	1,663,537		1,690,290		1,761,232
Other sources of revenues:
Principal transactions	327,761		351,633		321,923
Interest and dividend income	21,977		12,332		18,319
Other revenues	2,089		2,506		3,132
Total revenues	$	2,015,364	$	2,056,761	$	2,104,606