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Interest Income And Interest Expense (Tables)
 12 Months Ended
Dec. 31, 2017
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,

 

 

 

2017

 

 

2016

 

 

2015

 

Interest income:

 

 

 

 

 

 

 

 

 

 

 

 

Bank loans, net of unearned income

 

$

206,084

 

 

$

131,808

 

 

$

79,816

 

Investment securities

 

 

189,472

 

 

 

108,992

 

 

 

53,787

 

Margin balances

 

 

37,218

 

 

 

32,147

 

 

 

22,421

 

Inventory

 

 

17,563

 

 

 

18,965

 

 

 

17,757

 

Other

 

 

4,044

 

 

 

2,420

 

 

 

5,320

 

 

 

$

454,381

 

 

$

294,332

 

 

$

179,101

 

Interest expense:

 

 

 

 

 

 

 

 

 

 

 

 

Senior notes

 

$

35,338

 

 

$

36,217

 

 

$

25,695

 

Bank deposits

 

 

12,661

 

 

 

7,331

 

 

 

7,262

 

Federal Home Loan Bank advances

 

 

8,305

 

 

 

6,777

 

 

 

551

 

Other

 

 

13,726

 

 

 

16,549

 

 

 

11,891

 

 

 

$

70,030

 

 

$

66,874

 

 

$

45,399