Commitments and Contingencies (Tables)
 12 Months Ended
Dec. 31, 2015
Commitments and Contingencies Disclosure [Abstract]  
Unrecorded Unconditional Purchase Obligations Disclosure
The following table summarizes our future minimum purchase commitments as of December 31, 2015:

 
Total
 
Less Than One Year
 
1-3 Years
 
3-5 Years
 
More than Five Years
(dollars in thousands)
 
 
 
 
 
 
 
 
 
Finished goods minimum purchase obligations
$
57,938

 
$
33,314

 
$
24,624

 
$
—

 
$
—

Raw material purchase obligations
305,477

 
297,863

 
7,614

 
—

 
—

Total contractual obligations
$
363,415

 
$
331,177

 
$
32,238

 
$
—

 
$
—