Accrued Expenses And Other Current Liabilities (Details) (USD $)	Dec. 31, 2013		Mar. 31, 2013
Accrued Expenses and Other Current Liabilities [Abstract]
Accrued payroll and employee benefits	$ 101,363,000		$ 89,131,000
Business insurance reserves	52,610,000	[1]	53,619,000	[1]
Taxes other than income taxes	20,842,000		23,154,000
Cash overdraft	63,088,000		83,158,000
Deferred rental revenue	33,144,000		31,909,000
Accrued interest	13,103,000		23,373,000
Other accrued expenses and current liabilities	66,325,000		70,539,000
Accrued expenses and other current liabilities	350,475,000		374,883,000
Insurance receivables	$ 13,900,000		$ 14,000,000

[1] With respect to the business insurance reserves above, the Company had corresponding insurance receivables of $13.9 million and $14.0 million at December 31, 2013 and March 31, 2013, respectively, which are included within the “Prepaid expenses and other current assets” line item on the Company’s Consolidated Balance Sheets. The insurance receivables represent the balance of probable claim losses in excess of the Company’s deductible for which the Company is fully insured.