Long-Term Borrowings (Tables)

12 Months Ended

Mar. 31, 2012

Long-Term Borrowings [Abstract]

Long -Term Borrowings

	March 31,
	2012			2011
	(In millions)
Senior unsecured notes due 2018 (net of $1.1 million and $1.3 million of unamortized discount at March 31, 2012 and 2011, respectively)	$	298.9		$	298.7
Senior unsecured notes due 2022 (net of $2.6 million of unamortized discount at March 31, 2012 )		497.4			—
Capital leases and other obligations		46.3			56.2
Total		842.6			354.9
Less current maturities of capital leases and other obligations (included in accrued liabilities)		(21.0	)		(19.3	)
Long-term borrowings	$	821.6		$	335.6