SELECTED FINANCIAL STATEMENT INFORMATION, Accounts Receivable (Details) - USD ($) $ in Thousands	Oct. 31, 2021	Oct. 31, 2020
Accounts receivable	$ 255,793	$ 223,171
Less: Allowance for doubtful accounts	(10,874)	(12,738)
Accounts receivable, net	$ 244,919	$ 210,433

The total amount due to the entity within one year of the balance sheet date (or one operating cycle, if longer) from outside sources, including trade accounts receivable, notes and loans receivable, as well as any other types of receivables, net of allowances established for the purpose of reducing such receivables to an amount that approximates their net realizable value.

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Name:	us-gaap_ReceivablesNetCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant