Accrued Expenses And Other Current Liabilities (Details) (USD $)	Jun. 30, 2014		Mar. 31, 2014
Accrued Expenses and Other Current Liabilities [Abstract]
Accrued payroll and employee benefits	$ 73,998,000		$ 92,038,000
Business insurance reserves	50,209,000	[1]	49,372,000	[1]
Income taxes	54,047,000		8,943,000
Taxes other than income taxes	26,773,000		25,183,000
Cash overdraft	64,572,000		68,245,000
Deferred rental revenue	33,685,000		34,557,000
Accrued interest	13,622,000		11,335,000
Other accrued expenses and current liabilities	59,759,000		56,003,000
Accrued expenses and other current liabilities	376,665,000		345,676,000
Insurance receivables	$ 11,800,000		$ 11,800,000

[1] With respect to the business insurance reserves above, the Company had corresponding insurance receivables of $11.8 million at both June 30, 2014 and March 31, 2014, 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.