Net income (loss) per share (Tables)

3 Months Ended

Jun. 30, 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:

	Three Months Ended
(In thousands)	June 30,
		2013	2012
Basic		267,115	268,389
Incremental shares attributable to share
based compensation plans		1,305	583
Diluted		268,420	268,972