Interest Expense

9 Months Ended

Sep. 30, 2015

Interest and Debt Expense [Abstract]

Interest Expense

Interest Expense

The following tables present the components of interest expense: 

	For the Three Months Ended September 30, 2014		For the Period July 1, 2015 Through August 14, 2015		For the Period August 15, 2015 Through September 30, 2015
	(Dollars in thousands)
Interest incurred on debt	$	5,448	$	2,520	$	2,928
Amortization of discount on Senior    Subordinated Notes	3,100		5,560		—
Accretion on Senior Notes	—		—		773
Amortization of debt issuance costs	521		922		—
Total interest expense	$	9,069	$	9,002	$	3,701

	For the Nine Months Ended September 30, 2014		For the Period January 1, 2015  Through August 14, 2015		For the Period August 15, 2015 Through September 30, 2015
	(Dollars in thousands)
Interest incurred on debt	$	16,162	$	12,973	$	2,928
Amortization of discount on Senior    Subordinated Notes	9,145		12,027		—
Accretion on Senior Notes	—		—		773
Amortization of debt issuance costs	1,916		2,118		—
Total interest expense	$	27,223	$	27,118	$	3,701

Interest Rates

The Revolving Facility had an effective interest rate of 2.17% and 2.45% as of December 31, 2014 and September 30, 2015, respectively. The Senior Subordinated Notes have an implied interest rate of 7.00%. The Senior Notes have a fixed interest rate of 6.375%. 

On August 11, 2015, we prepaid our Senior Subordinated Notes (see Note 9 "Debt and Liquidity"). This prepayment resulted in accelerated amortization of $4.5 million as the Notes were prepaid at the face value. The accelerated expense was recorded in the predecessor period.