SELECTED FINANCIAL STATEMENT INFORMATION (Tables)

12 Months Ended

Oct. 31, 2020

Selected Financial Statement Information [Abstract]

Schedule of Accounts Receivable [Table Text Block]

Accounts Receivable

	As of October 31,
(in thousands)	2020	2019
Accounts receivable	$223,171	$277,992
Less: Allowance for doubtful accounts	(12,738)	(3,666)
Accounts receivable, net	$210,433	$274,326

Schedule of Inventory [Table Text Block]

Inventories

	As of October 31,
(in thousands)	2020	2019
Finished products	$235,501	$199,880
Work in process	37,957	32,548
Materials, parts, assemblies and supplies	189,747	187,891
Inventories, net of valuation reserves	$463,205	$420,319

Property, Plant and Equipment [Table Text Block]

Property, Plant and Equipment

	As of October 31,
(in thousands)	2020	2019
Land	$6,678	$6,820
Buildings and improvements	120,769	116,997
Machinery, equipment and tooling	265,408	253,127
Construction in progress	8,487	8,382
	401,342	385,326
Less:  Accumulated depreciation and amortization	(232,494)	(211,981)
Property, plant and equipment, net	$168,848	$173,345

Schedule Of Accrued Expenses and Other Current Liabilities [Table Text Block]

Accrued Expenses and Other Current Liabilities

	As of October 31,
(in thousands)	2020	2019
Accrued employee compensation and related payroll taxes	$83,055	$112,602
Contract liabilities	25,631	23,809
Accrued customer rebates and credits	15,813	17,978
Current operating lease liabilities	14,180	—
Other	23,553	24,568
Accrued expenses and other current liabilities	$162,232	$178,957

Schedule of Research and Development Expenses [Table Text Block]

The amount of new product research and development ("R&D") expenses included in cost of sales is as follows (in thousands):

	Year ended October 31,
	2020	2019	2018
R&D expenses	$65,559	$66,630	$57,450

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

Changes in the components of accumulated other comprehensive loss during fiscal 2020 and 2019 are as follows (in thousands):

	Foreign Currency Translation	Defined Benefit Pension Plan	Accumulated Other Comprehensive Loss
Balances as of October 31, 2018	($14,370)	($886)	($15,256)
Unrealized loss	(619)	(889)	(1,508)
Amortization of unrealized loss	—	25	25
Balances as of October 31, 2019	(14,989)	(1,750)	(16,739)
Unrealized gain (loss)	8,529	(1,012)	7,517
Amortization of unrealized loss	—	73	73
Balances as of October 31, 2020	($6,460)	($2,689)	($9,149)