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Interest Expense
 12 Months Ended
Dec. 31, 2015
Banking and Thrift [Abstract]  
Interest Expense
Interest Expense
The following table summarizes the components of interest expense for the periods presented:
 
Year Ended December 31,
 
2015
 
2014
 
2013
Interest on borrowings and related fees
$
92,490

 
$
91,866

 
$
80,263

Accretion of original issue discount 1
—

 
—

 
431

Amortization of debt issuance costs
4,749

 
4,197

 
3,413

Capitalized interest
(6,288
)
 
(7,232
)
 
(5,266
)
 
$
90,951

 
$
88,831

 
$
78,841


______________________
1 Includes accretion of original issue discount attributable to the 2016 Senior Notes that were retired in 2013.