CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Apr. 30, 2020	Apr. 30, 2019	Apr. 30, 2020	Apr. 30, 2019
Income Statement [Abstract]
Net sales	$ 844,711	$ 845,229	$ 1,667,789	$ 1,588,617
Cost and expenses:
Cost of sales	832,283	740,833	1,655,807	1,449,233
Selling, general and administrative	56,214	49,230	105,699	107,765
Cost and expenses	888,497	790,063	1,761,506	1,556,998
Operating income (loss)	(43,786)	55,166	(93,717)	31,619
Other income (expense):
Interest expense	(1,783)	(1,173)	(2,971)	(1,682)
Other	3	2	5	2
Other income (expense)	(1,780)	(1,171)	(2,966)	(1,680)
Income (loss) before income taxes	(45,566)	53,995	(96,683)	29,939
Income tax expense (benefit)	(51,684)	13,359	(64,225)	7,136
Net income (loss)	$ 6,118	$ 40,636	$ (32,458)	$ 22,803
Earnings (loss) per share:
Basic (in usd per share)	$ 0.28	$ 1.83	$ (1.48)	$ 1.03
Diluted (in usd per share)	0.28	1.83	(1.48)	1.03
Dividends per share (in usd per share)	$ 0.32	$ 0.32	$ 0.64	$ 0.64