Acquisitions (Fair Value of Assets Acquired and Liabilities Assumed) (Details) - USD ($)		3 Months Ended
	Jul. 31, 2021	Oct. 31, 2021	Mar. 02, 2021
Preliminary allocation of aggregate purchase price:
Goodwill	$ 347,698,000	$ 347,692,000
Measurement Period Adjustments, Preliminary allocation of aggregate purchase price		0
UHP
Business Acquisition [Line Items]
Initial upfront payment	23,979,000	23,979,000	$ 23,979,000
Contingent earn-out consideration	8,500,000	8,500,000	8,500,000
Aggregate purchase price	37,470,000	37,470,000
Preliminary allocation of aggregate purchase price:
Cash and cash equivalents	1,391,000	1,391,000
Current assets	1,358,000	1,367,000
Measurement Period Adjustments, Current assets		9,000
Property, plant and equipment	10,000	10,000
Deferred tax assets	313,000	310,000
Measurement Period Adjustments, Deferred tax assets		(3,000)
Contract liabilities	(648,000)	(648,000)
Accrued warranty obligations	(750,000)	(750,000)
Other current liabilities	(1,175,000)	(1,175,000)
Non-current liabilities	(160,000)	(160,000)
Measurement Period Adjustments, Net tangible assets at preliminary fair value		6,000
Net tangible assets at preliminary fair value	339,000	345,000
Deferred tax liabilities	(8,374,000)	(8,374,000)
Goodwill, Purchase Accounting Adjustments		(6,000)
Goodwill	13,905,000	13,899,000
Preliminary allocation of aggregate purchase price	37,470,000	37,470,000
Hold-back amount	4,991,000	4,991,000	$ 4,991,000
UHP | Technology
Preliminary allocation of aggregate purchase price:
Identifiable intangible assets	$ 15,300,000	15,300,000
Estimated Useful Lives	15 years
UHP | Customer relationships
Preliminary allocation of aggregate purchase price:
Identifiable intangible assets	$ 15,500,000	15,500,000
Estimated Useful Lives	15 years
UHP | Trade name
Preliminary allocation of aggregate purchase price:
Identifiable intangible assets	$ 800,000	$ 800,000
Estimated Useful Lives	20 years