Business And Summary Of Significant Accounting Policies Business And Summary Of Significant Accounting Policies (Details) (USD $)	3 Months Ended			9 Months Ended			3 Months Ended		9 Months Ended	12 Months Ended
	Oct. 31, 2013	Oct. 31, 2012		Oct. 31, 2013	Oct. 31, 2012	Jan. 31, 2013	Jan. 31, 2014 Subsequent Event	Oct. 31, 2013 Special Charges	Oct. 31, 2013 Special Charges	Jan. 31, 2014 Minimum Subsequent Event	Jan. 31, 2014 Maximum Subsequent Event
Subsequent Event [Line Items]
Operating Expenses, Restatement	$ (7,935,000)	$ 0	[1]	$ 6,051,000	$ 0			$ 15,000,000	$ 29,000,000	$ 54,000,000	$ 56,000,000
Litigation Settlement, Amount	22,900,000			22,900,000			12,600,000
Accounts receivable sold	190,400,000			190,400,000		284,700,000
Discount fees on sale of accounts receivable	$ 600,000	$ 800,000		$ 2,000,000	$ 1,700,000

[1] See Note 2 - Restatement of Consolidated Financial Statements.