Debt (Tables)

9 Months Ended

Dec. 31, 2012

Debt

Summary of Debt

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

	December 31, 2012			March 31, 2012
10.5% Senior Notes, net of premium of $3,920 and $3,539 as of December 31, 2012 and March 31, 2012, respectively	$	358,920		$	343,539
Advanced payment from OEM, net of discount of $1,270 as of December 31, 2012	22,730			—
Other	1,845			3,792
Total debt	383,495			347,331
Current maturities	(7,908		)	(1,951		)
Total long-term debt	$	375,587		$	345,380

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 and nine months ended December 31, 2012 and 2011, is as follows (amounts in thousands):

	Quarters Ended December 31,				Nine Months Ended December 31,
	2012		2011		2012			2011
Contractual interest expense	$	9,125	$	6,189	$	27,794		$	18,815
Amortization of debt issuance costs	426		274		1,278			829
Amortization of debt (premium) discount	48		415		(250		)	1,669
Imputed interest on acquisition related obligations	648		158		2,018			405
	$	10,247	$	7,036	$	30,840		$	21,718