Net Income Per Common Share Net Loss per Common Share (Narrative) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		0 Months Ended
	Oct. 31, 2014	Oct. 31, 2013	Jan. 12, 2015 Scenario, Forecast [Member]	Dec. 29, 2014 Scenario, Forecast [Member]	Dec. 05, 2014 Scenario, Forecast [Member]
Anti-dilutive securities (in shares)	1,700,000	1,500,000
Cash dividends declared per share	$ 0.4150	$ 0.2075			$ 0.4150
Dividends Payable, Date to be Paid			Jan. 12, 2015
Payments of Dividends	$ 15,061	$ 7,489
Dividends Payable, Date of Record				Dec. 29, 2014