Supplemental Cash Flow Disclosures (Tables)

12 Months Ended

Mar. 31, 2012

Supplemental Cash Flow Disclosures [Abstract]

Schedule Of Supplemental Cash Flow Disclosures And Non-Cash Investing And Financing Activities

	Fiscal Year Ended March 31,
	2012		2011		2010
	(In thousands)
Net cash paid for:
Interest	$	42,067	$	83,133	$	126,327
Income taxes	$	66,013	$	77,690	$	89,973
Non-cash investing activity:
Accounts payable for fixed assets purchases	$	63,671	$	73,036	$	67,876