Debt (Components Of Debt) (Details) (USD $)	Oct. 31, 2014	Jan. 31, 2014	Sep. 30, 2012
Debt Instrument [Line Items]
Capital Lease Obligations	$ 4,862,000	$ 5,662,000
Less-current maturities (included as "Revolving credit loans and current portion of long-term debt, net")	(46,463,000)	(43,481,000)
Long-term debt, less current maturities	353,549,000	354,121,000
Long-term Line of Credit	45,900,000
Debt and Capital Lease Obligations	400,012,000	397,602,000
Senior Notes
Debt Instrument [Line Items]
Debt, face value	350,000,000	350,000,000	350,000,000
Debt Instrument, Unamortized Discount	776,000	974,000	1,300,000
Senior Notes	349,224,000	349,026,000
Other Committed And Uncommitted Revolving Credit Facilities Expiring on Various Dates Through Fiscal Two Thousand and Seventeen [Member]
Debt Instrument [Line Items]
Long-term Line of Credit	$ 45,926,000	$ 42,914,000