Condensed Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Jul. 31, 2014	Jul. 31, 2013	Jul. 31, 2014	Jul. 31, 2013
Net income	$ 97,707	$ 46,595	$ 208,508	$ 75,701
Other comprehensive income (loss), net of tax:
Change in pension liability	(3)	(37)	153	(55)
Change in fair value of available-for-sale securities	8	(70)	(14)	(107)
Unrealized income (loss) on derivative held by equity investee	(25)	338	198	351
Other Comprehensive Income (Loss), Net of Tax	(20)	231	337	189
Comprehensive Income, Net of Tax, Attributable to Parent	$ 97,687	$ 46,826	$ 208,845	$ 75,890