Interest Income and Interest Expense (Tables)

12 Months Ended

Dec. 31, 2019

Banking And Thrift Interest [Abstract]

Components Of Interest Income And Interest Expense

The components of interest income and interest expense are as follows (in thousands): 

	Year Ended December 31,
	2019		2018		2017
Interest income:
Loans held for investment, net	$	379,848	$	300,541	$	206,084
Investment securities		231,021		252,200		187,731
Margin balances		52,008		49,515		37,218
Financial instruments owned		23,528		21,407		17,563
Other		38,477		22,786		5,785
	$	724,882	$	646,449	$	454,381
Interest expense:
Bank deposits	$	95,813	$	82,256	$	12,661
Senior notes		44,507		44,610		35,338
Federal Home Loan Bank advances		7,872		15,173		8,305
Other		29,739		28,037		13,726
	$	177,931	$	170,076	$	70,030