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Discontinued Operations - Acquisitions (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Apr. 29, 2021
Mar. 31, 2022
Mar. 31, 2022
Sep. 30, 2021
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract]        
Goodwill   $ 467,746 $ 467,746 $ 469,356
Payments to Acquire Productive Assets [Abstract]        
Purchases of technology intangibles     $ 4,000  
Discontinued Operations, Held-for-sale | Semiconductor Automation Business | Precise Automation, Inc.        
Business Acquisition, Date of Acquisition [Abstract]        
Business acquisition, effective date of acquisition Apr. 29, 2021      
Business Combination, Consideration Transferred [Abstract]        
Total purchase price $ 69,800      
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract]        
Goodwill 33,100      
Deferred tax liabilities $ 6,200      
Weighted average useful life of intangible assets 11 years      
Business combination, option to purchase certain technology assets, exercised   4,000    
Business Combination, Goodwill [Abstract]        
Goodwill deductible for tax purposes $ 0      
Payments to Acquire Productive Assets [Abstract]        
Purchases of technology intangibles   $ 4,000    
Discontinued Operations, Held-for-sale | Semiconductor Automation Business | Precise Automation, Inc. | Completed Technology        
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract]        
Intangible assets 38,700      
Discontinued Operations, Held-for-sale | Semiconductor Automation Business | Precise Automation, Inc. | Customer Relationships        
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract]        
Intangible assets $ 2,500