Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Retained Earnings	Accumulated Other Comprehensive Income (Loss)
Stockholders' Equity, beginning balance at Oct. 31, 2014	$ 1,308,602	$ 636,835	$ 672,004	$ (237)
Common Stock, Shares, Outstanding, Beginning Balance at Oct. 31, 2014		78,531
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	151,120		151,120
Other Comprehensive Income (Loss)	(391)			(391)
Common Stock Issued	24,248	$ 24,248
Common Stock Issued (Shares)		664
Expenses from Issuance of Common Stock	(362)	$ (362)
Tax Benefit from Dividends Paid on ESOP Shares	93		93
Dividends Declared	(77,249)		(77,249)
Common Stock, Shares, Outstanding, Ending Balance at Jul. 31, 2015		79,195
Stockholders' Equity, ending balance at Jul. 31, 2015	1,406,061	$ 660,721	745,968	(628)
Stockholders' Equity, beginning balance at Oct. 31, 2015	$ 1,426,312	$ 721,419	705,748	(855)
Common Stock, Shares, Outstanding, Beginning Balance at Oct. 31, 2015	80,883	80,883
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	$ 154,492		154,492
Other Comprehensive Income (Loss)	511			511
Common Stock Issued	22,800	$ 22,800
Common Stock Issued (Shares)		400
Expenses from Issuance of Common Stock	(88)	$ (88)
Tax Benefit from Dividends Paid on ESOP Shares	88		88
Dividends Declared	$ (81,919)		(81,919)
Common Stock, Shares, Outstanding, Ending Balance at Jul. 31, 2016	81,283	81,283
Stockholders' Equity, ending balance at Jul. 31, 2016	$ 1,522,196	$ 744,131	$ 778,409	$ (344)