CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 31, 2016	Jul. 31, 2015	Jul. 31, 2016	Jul. 31, 2015
Income Statement [Abstract]
Net sales	$ 727,991	$ 739,933	$ 2,025,246	$ 2,123,888
Cost and expenses:
Cost of sales	598,563	612,761	1,731,900	1,716,529
Selling, general and administrative	44,565	47,339	114,898	114,947
Cost and expenses	643,128	660,100	1,846,798	1,831,476
Operating Income	84,863	79,833	178,448	292,412
Other income (expense):
Interest income	77	0	77	39
Interest expense	(428)	(556)	(1,279)	(1,669)
Other	9	15	19	78
Other income (expense)	(342)	(541)	(1,183)	(1,552)
Income before income taxes	84,521	79,292	177,265	290,860
Income tax expense	29,805	28,411	64,266	102,230
Net income	$ 54,716	$ 50,881	$ 112,999	$ 188,630
Earnings per share:
Basic (in usd per share)	$ 2.42	$ 2.27	$ 5.01	$ 8.28
Diluted (in usd per share)	2.42	2.27	5.01	8.28
Dividends per share (in usd per share)	$ 0.22	$ 0.22	$ 0.66	$ 0.66