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Accounting Policies (Tables)
12 Months Ended
Sep. 30, 2022
Accounting Policies [Abstract]  
Schedule of Inventories
Inventories consist of the following (in thousands):
 
 September 30,
 20222021
Finished goods$10,164 $13,081 
Raw materials58,201 8,974 
$68,365 $22,055 
Schedule of Earnings Per Share, Basic and Diluted
The following table sets forth the computation of basic and diluted net income per share (in thousands, except per share data):
 
 Years Ended September 30,
 202220212020
Numerator
Net income$322,160 $331,241 $307,441 
Denominator
Weighted average shares outstanding — basic60,274 60,707 60,911 
Dilutive effect of common shares from stock options and restricted stock units
823 1,350 467 
Weighted average shares outstanding — diluted61,097 62,057 61,378 
Basic net income per share$5.34 $5.46 $5.05 
Diluted net income per share$5.27 $5.34 $5.01