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Interest Expense
 6 Months Ended
Jun. 30, 2013
Banking and Thrift [Abstract]  
Interest Expense
Interest Expense
 
The following table summarizes the components of interest expense for the periods presented:
 
Three Months Ended June 30,
 
Six Months Ended June 30,
 
2013
 
2012
 
2013
 
2012
Interest on borrowings and related fees
$
20,902

 
$
14,289

 
$
34,485

 
$
28,306

Accretion of original issue discount
110

 
341

 
431

 
674

Amortization of debt issuance costs
829

 
694

 
1,454

 
1,376

Capitalized interest
(33
)
 
(240
)
 
(83
)
 
(498
)
 
$
21,808

 
$
15,084

 
$
36,287

 
$
29,858