Interest Expense (Tables)

12 Months Ended

Dec. 31, 2014

Interest and Debt Expense [Abstract]

Schedule Of Interest Expense

The following table presents an analysis of interest expense:

	For the year Ended December 31,
	2012		2013		2014
	(Dollars in thousands)
Interest incurred on debt	$	10,172	$	21,589	$	21,373
Amortization of discount on Senior Subordinated Notes	10,742		11,493		12,298
Amortization of debt issuance costs	1,712		2,504		3,339
Supply Chain Financing mark-up	621		451		47
Total interest expense	$	23,247	$	36,037	$	37,057