Debt (Additional Information) (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended			9 Months Ended
	Dec. 31, 2012	Dec. 31, 2012 Revolving Credit Facility [Member]	Mar. 31, 2012 Revolving Credit Facility [Member]	Dec. 31, 2012 Lower Limit [Member]	Dec. 31, 2012 Upper Limit [Member]	Dec. 31, 2012 Line of Credit [Member]
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity	$ 300
Line of credit facility, maturity date	Mar. 29, 2016
Unused line rate for a daily average greater than or equal to 50% of the defined borrowing base				0.375%	0.50%
Line of credit facility borrowing base percentage of liquidation value of all eligible inventory	90.00%
Line of credit facility borrowing base percentage of the net book value of eligible inventory	75.00%
Line of credit facility borrowing base percentage of all commercial and credit card receivables	90.00%
Financial maintenance covenant, percentage of excess availability	10.00%	12.50%
Financial maintenance covenant, excess availability	20.0
Financial maintenance covenant, fixed charge coverage ratio						1
Letter of credit outstanding		4.9	5.2
Line of credit facility, total borrowing availability		$ 281.4	$ 175.0
Line of credit, interest rate		4.25%	4.25%