Debt (Tables)

6 Months Ended

Sep. 30, 2013

Debt

Summary of Debt

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

	September 30,  2013			March 31,  2013
10.5% Senior Notes, net of premium of $3,463 and $3,773 as of September 30, 2013 and March 31, 2013, respectively	$	358,463		$	358,773
Advanced payment from OEM, net of discount of $641 and $1,056 as of September 30, 2013 and March 31, 2013, respectively	21,954			22,944
Revolving line of credit	21,000			—
Other	1,861			1,783
Total debt	403,278			383,500
Current maturities	(29,772		)	(10,793		)
Total long-term debt	$	373,506		$	372,707

Schedule of Cash and Non-cash components of Interest Expense

The line item “Interest expense” on the Condensed Consolidated Statements of Operations for the quarters ended September 30, 2013 and 2012, is as follows (amounts in thousands):

	Quarters Ended September 30,					Six Month Periods Ended September 30,
	2013		2012			2013		2012
Contractual interest expense	$	8,963	$	9,182		$	17,983	$	18,669
Amortization of debt issuance costs	426		426			852		852
Amortization of debt (premium) discount	42		(144		)	104		(298		)
Imputed interest on acquisition related obligations	477		672			1,003		1,370
	$	9,908	$	10,136		$	19,942	$	20,593