Net income (loss) per share (Tables)

12 Months Ended

Mar. 31, 2013

Net income (loss) per share [Abstract]

Reconciliation of shares used in calculating basic and diluted net income per share

A reconciliation of shares used in calculating basic and diluted net income per share follows:

(In thousands)
Years ended March 31,	2013		2012		2011
Basic		266,807		273,561		291,058
Incremental shares attributable to share based compensation plans		-		455		117
Diluted		266,807		274,016		291,175