CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 31, 2019	Jul. 31, 2018	Jul. 31, 2019	Jul. 31, 2018
Income Statement [Abstract]
Net sales	$ 945,152	$ 852,434	$ 2,533,769	$ 2,437,856
Cost and expenses:
Cost of sales	824,144	781,568	2,273,377	2,187,079
Selling, general and administrative	52,226	55,778	159,991	163,390
Cost and expenses	876,370	837,346	2,433,368	2,350,469
Operating income	68,782	15,088	100,401	87,387
Other income (expense):
Interest income	0	745	0	2,069
Interest expense	(1,492)	(519)	(3,174)	(1,548)
Other	4	3	6	9
Other income (expense)	(1,488)	229	(3,168)	530
Income before income taxes	67,294	15,317	97,233	87,917
Income tax expense (benefit)	13,932	3,842	21,068	(16,712)
Net income	$ 53,362	$ 11,475	$ 76,165	$ 104,629
Earnings per share:
Basic (in usd per share)	$ 2.41	$ 0.50	$ 3.44	$ 4.58
Diluted (in usd per share)	2.41	0.50	3.44	4.58
Dividends per share (in usd per share)	$ 0.32	$ 0.32	$ 0.96	$ 0.96