Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Oct. 31, 2025	Oct. 31, 2024	Oct. 31, 2023
Cash flows from operating activities:
Net income	$ 190,234	$ 183,848	$ 199,634
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization of property, plant and equipment	77,258	82,433	80,473
Amortization of intangible assets	347	372	362
Share-based compensation	13,388	13,890	8,001
Deferred income taxes	(17,168)	(1,389)	(927)
Changes in assets, liabilities, and other:
Accounts receivable	6,309	(2,541)	4,026
Inventories	(4,942)	(6,154)	1,236
Other current assets	(4,715)	628	9,665
Accounts payable, accrued liabilities and other	(12,913)	(9,643)	(294)
Net cash provided by operating activities	247,798	261,444	302,176
Cash flows used in investing activities:
Purchases of property, plant and equipment	(188,137)	(130,942)	(131,295)
Purchases of short-term investments	(129,649)	(100,558)	(20,192)
Proceeds from maturities of short-term investments	76,823	72,836	47,537
Government incentives	2,158	2,229	2,522
Purchases of intangible assets	(94)	(89)	(117)
Other	0	59	0
Net cash used in investing activities	(238,899)	(156,465)	(101,545)
Cash flows used in financing activities:
Repayments of debt	(17,972)	(6,621)	(18,439)
Common stock repurchases	(97,422)	0	0
Proceeds from share-based arrangements	2,231	1,916	1,248
Net settlements of restricted stock awards	(2,094)	(3,025)	(1,302)
Net cash used in financing activities	(115,257)	(7,730)	(18,493)
Effects of exchange rate changes on cash, cash equivalents, and restricted cash	228	2,127	(2,680)
Net change in cash, cash equivalents, and restricted cash	(106,130)	99,376	179,458
Cash, cash equivalents, and restricted cash at beginning of year	601,243	501,867	322,409
Cash, cash equivalents, and restricted cash at end of year	495,113	601,243	501,867
Less: Ending restricted cash	2,857	2,758	2,575
Cash and cash equivalents at end of year	492,256	598,485	499,292
Supplemental disclosure of non-cash information:
Accruals for property, plant and equipment not yet paid	12,173	5,217	18,607
Expected refundable federal investment tax credit	$ 10,925	$ 5,013	$ 0