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Interest Income And Interest Expense (Tables)
 9 Months Ended
Sep. 30, 2018
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):

 

 

 

Three Months Ended September 30,

 

 

Nine Months Ended September 30,

 

 

 

2018

 

 

2017

 

 

2018

 

 

2017

 

Interest income:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Bank loans, net

 

$

78,766

 

 

$

54,006

 

 

$

210,790

 

 

$

147,495

 

Investment securities

 

 

66,825

 

 

 

48,072

 

 

 

185,263

 

 

 

136,123

 

Margin balances

 

 

13,066

 

 

 

9,919

 

 

 

36,322

 

 

 

27,124

 

Financial instruments owned

 

 

5,733

 

 

 

4,371

 

 

 

15,645

 

 

 

12,953

 

Other

 

 

5,370

 

 

 

1,494

 

 

 

13,895

 

 

 

4,071

 

 

 

$

169,760

 

 

$

117,862

 

 

$

461,915

 

 

$

327,766

 

Interest expense:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Bank deposits

 

$

25,856

 

 

$

4,770

 

 

$

49,329

 

 

$

8,424

 

Senior notes

 

 

11,248

 

 

 

8,655

 

 

 

33,488

 

 

 

24,935

 

Federal Home Loan Bank advances

 

 

4,232

 

 

 

1,255

 

 

 

10,579

 

 

 

5,771

 

Other

 

 

7,132

 

 

 

2,945

 

 

 

18,804

 

 

 

11,035

 

 

 

$

48,468

 

 

$

17,625

 

 

$

112,200

 

 

$

50,165