CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock	Paid-In Capital	Retained Earnings
Beginning Balance at Oct. 31, 2016	$ 1,190,262	$ 22,693	$ 125,855	$ 1,041,714
Beginning Balance (in shares) at Oct. 31, 2016		22,693,225
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income - Fiscal 2019	279,745			279,745
Cash dividends	(46,399)			(46,399)
Stock compensation plan transactions	(5,623)	$ 110	(5,733)
Issuance of stock under stock compensation plans (in shares)		109,465
Amortization of unearned compensation	14,877		14,877
Ending Balance at Oct. 31, 2017	1,432,862	$ 22,803	134,999	1,275,060
Ending Balance (in shares) at Oct. 31, 2017		22,802,690
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income - Fiscal 2019	61,431			61,431
Cash dividends	(28,966)			(28,966)
Purchase of common stock	(83,463)	$ (823)	(59,639)	(23,001)
Purchase of common stock (in shares)		(823,385)
Stock compensation plan transactions	(8,742)	$ 120	(8,862)
Issuance of stock under stock compensation plans (in shares)		120,475
Amortization of unearned compensation	14,771		14,771
Ending Balance at Oct. 31, 2018	1,387,893	$ 22,100	81,269	1,284,524
Ending Balance (in shares) at Oct. 31, 2018		22,099,780
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income - Fiscal 2019	53,294			53,294
Cash dividends	$ (28,357)			(28,357)
Purchase of common stock			(59,600)	(23,000)
Purchase of common stock (in shares)	(823,385)
Stock compensation plan transactions	$ (5,490)	$ 104	(5,594)
Issuance of stock under stock compensation plans (in shares)		104,140
Amortization of unearned compensation	10,335		10,335
Ending Balance at Oct. 31, 2019	$ 1,417,675	$ 22,204	$ 86,010	$ 1,309,461
Ending Balance (in shares) at Oct. 31, 2019		22,203,920