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Description of Business and Significant Accounting Policies (Tables)
12 Months Ended
Apr. 30, 2021
Accounting Policies [Abstract]  
Property and Equipment Depreciation Life

Depreciation and amortization is computed using the straight-line method, generally over the following periods:

 

 

 

Depreciation Life

Buildings and improvements

 

10 to 40 years

Furniture and fixtures

 

5 years

Computer, production, engineering and other equipment

 

2 to 3 years

Computer software

 

3 to 5 years

Leasehold improvements

 

Shorter of remaining lease term or useful life