Long-Term Obligations (Tables)

12 Months Ended

Mar. 31, 2013

Long-Term Obligations

Schedule of long-term debt

	March 31,
	2013		2012
	(in thousands)
Revolving credit facility —
Expansion capital loans	$	441,500	$	—
Working capital loans	36,000		—
Previous revolving credit facility —
Acquisition loans	—		186,000
Working capital loans	—		28,000
Senior notes	250,000		—
Other notes payable	21,562		4,711
	749,062		218,711
Less current maturities	8,626		19,534
Long-term debt	$	740,436	$	199,177

Schedule of outstanding borrowings and interest rates under revolving credit facility

At March 31, 2013, our outstanding borrowings and interest rates under our revolving credit facility were as follows (dollars in thousands):

	Amount		Rate
Expansion capital facility —
LIBOR borrowings	$	441,500	3.21	%
Working capital facility —
LIBOR borrowings	20,000		3.21	%
Base rate borrowings	16,000		5.25	%

Schedule of future maturities of long-term debt

The future maturities of our long-term debt are as follows as of March 31, 2013 (in thousands):

	Revolving				Other
	Credit		Senior		Notes
Year ending March 31,	Facility		Notes		Payable		Total
2014	$	—	$	—	$	8,626	$	8,626
2015	—		—		6,456		6,456
2016	—		—		3,088		3,088
2017	—		—		2,091		2,091
2018	477,500		25,000		1,182		503,682
Thereafter	—		225,000		119		225,119
	$	477,500	$	250,000	$	21,562	$	749,062