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Other Assets (Tables)
3 Months Ended
Mar. 31, 2018
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]  
Schedule of Components of Other Assets
The following table details the components of the Company's other assets ($ in thousands):
 
March 31, 2018
 
December 31, 2017
Interest receivable
$
25,548

 
$
23,101

Collateral deposited under derivative agreements
20,150

 
4,930

Other
389

 
389

Total
$
46,087

 
$
28,420