Debt

A summary of debt is as follows (amounts in thousands):



	December 31, 2015			March 31, 2015
10.5% Senior Notes, net of premium of $1,906 and $2,461 as of December 31, 2015 and March 31, 2015, respectively	$	356,906		$	357,461
Revolving line of credit	37,981			33,448
Other	—			462
Total debt	394,887			391,371
Current maturities	(5,000		)	(962		)
Total long-term debt	$	389,887		$	390,409

The line item “Interest expense” on the Condensed Consolidated Statements of Operations for the quarters and nine month periods ended December 31, 2015 and 2014, consists of the following (amounts in thousands):



	Quarters Ended December 31,						Nine Month Periods Ended December 31,
	2015			2014			2015			2014
Contractual interest expense	$	9,761		$	9,648		$	29,332		$	29,212
Capitalized interest	(163		)	(82		)	(439		)	(237		)
Amortization of debt issuance costs	348			267			1,044			1,132
Amortization of debt (premium) discount	(188		)	(108		)	(554		)	(234		)
Imputed interest on acquisition-related obligations	52			163			159			672
Interest expense on capital lease	42			50			134			136
Total interest expense	$	9,852		$	9,938		$	29,676		$	30,681

Revolving Line of Credit

The Company had the following activity for the nine month period ended December 31, 2015 and resulting balances under the revolving line of credit (amounts in millions, excluding percentages):



	March 31, 2015		Nine Month Period Ended December 31, 2015				December 31, 2015
	Outstanding Borrowings		Additional Borrowings		Repayments		Outstanding Borrowings		Rate (1) (2)		Due Date
U.S. Facility (3)	$	21.5	$	8.0	$	5.5	$	24.0	4.750	%	December 19, 2019
Singapore Facility
Singapore Borrowing 1 (4)	12.0		—		—		12.0		3.000	%	February 22, 2016
Singapore Borrowing 2 (4)	—		2.0		—		2.0		3.125	%	April 11, 2016
Total Facilities	$	33.5	$	10.0	$	5.5	$	38.0

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(1) For U.S. borrowings, Base Rate plus 1.50%, as defined in the Loan and Security Agreement dated September 30, 2010, as amended, by and among KEMET Electronics Corporation ("KEC"), KEMET Electronics Marketing (S) Pte. Ltd., KEMET Foil Manufacturing, LLC (“KEMET Foil”), KEMET Blue Powder Corporation (“KEMET Blue Powder”), The Forest Electric Company and the financial institutions party thereto (the “Loan and Security Agreement”).

(2) For Singapore borrowings, London Interbank Offer Rate ("LIBOR"), plus a spread of 2.50% as of December 31, 2015.

(3) The Company plans to repay a portion of the U.S. Facility within a year and has classified $5.0 million as current portion of long-term debt as of December 31, 2015.

(4) The Company has the intent and ability to extend the due date on the Singapore borrowings beyond one year.

As of December 31, 2015, these were the only borrowings under the revolving line of credit, and the Company's available borrowing capacity under the Loan and Security Agreement was $22.0 million. The borrowing capacity has increased due to an improvement in the fixed charged coverage ratio and an increase in the eligible accounts receivable collateral.

10.5% Senior Notes

As of December 31, 2015 and March 31, 2015, the Company had outstanding $355 million in aggregate principal amount of the Company’s 10.5% Senior Notes due May 1, 2018 (the “10.5% Senior Notes”). The Company had interest payable related to the 10.5% Senior Notes included in the line item “Accrued expenses” on its Condensed Consolidated balance sheets of $6.2 million as of December 31, 2015 and March 31, 2015.