Commitments and Contingencies (Tables)

12 Months Ended

Mar. 31, 2015

Commitments and Contingencies Disclosure [Abstract]

Future Commitments Under Take or Pay Supply Agreements

At March 31, 2015, future commitments under take-or-pay supply agreements were as follows:

(In thousands)
Years Ending March 31,
2016	$	221,228
2017	218,840
2018	175,250
2019	141,722
2020	97,170
Thereafter	275,656
	$	1,129,866