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Interest
 12 Months Ended
Dec. 31, 2014
Interest [Abstract]  
Interest
Interest
The following chart summarizes the interest incurred, capitalized, and paid, as well as the amortization of capitalized interest for 2014, 2013, and 2012:
(Thousands)
 
2014
 
2013
 
2012
Interest incurred
 
$
3,012


$
3,286

 
$
3,334

Less capitalized interest
 
225


250

 
200

Total net expense
 
$
2,787

 
$
3,036

 
$
3,134

Interest paid
 
$
2,215

 
$
2,671

 
$
2,639

Amortization of capitalized interest included in cost of sales
 
$
261

 
$
265

 
$
336


The difference in expense among 2014, 2013, and 2012 was primarily due to changes in the level of outstanding debt and capital leases and the average borrowing rate. Amortization of deferred financing costs within interest expense was $0.8 million in 2014, $0.7 million in 2013, and $0.6 million in 2012.