Condensed Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Apr. 30, 2014	Apr. 30, 2013	Apr. 30, 2014	Apr. 30, 2013
Net income	$ 65,222	$ 24,674	$ 110,802	$ 29,106
Other comprehensive income (loss), net of tax:
Change in pension liability	103	155	156	(18)
Change in fair value of available-for-sale securities	9	(133)	(22)	(37)
Unrealized income (loss) on derivative held by equity investee	(18)	(80)	223	13
Other Comprehensive Income (Loss), Net of Tax	94	(58)	357	(42)
Comprehensive Income, Net of Tax, Attributable to Parent	$ 65,316	$ 24,616	$ 111,159	$ 29,064