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OTHER FINANCIAL DATA (Notes)
 12 Months Ended
Sep. 30, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
OTHER FINANCIAL DATA
OTHER FINANCIAL DATA
The following table reflects other financial data for fiscal 2017, 2016, and 2015:
 
Fiscal
(in thousands)
2017
 
2016
 
2015
Incentive compensation expense
$
29,612

 
$
14,661

 
$
10,768

Rent expense
$
5,071

 
$
5,901

 
$
5,006

Warranty and retrofit expense (As Restated)
$
13,740

 
$
11,557

 
$
9,952