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Inventories
 12 Months Ended
Sep. 30, 2016
Inventory Disclosure [Abstract]  
Inventories

6. Inventories

Inventories consisted of the following (in thousands):

 

 

 

AS OF SEPTEMBER 30,

 

 

 

2016

 

 

2015

 

Finished goods

 

$

40,260

 

 

$

55,074

 

Work in process

 

 

8,272

 

 

 

5,632

 

Raw material

 

 

65,682

 

 

 

70,769

 

Obsolescence reserve

 

 

(9,674

)

 

 

(6,675

)

 

 

$

104,540

 

 

$

124,800

 

 

Inventory obsolescence expense and inventory write-downs totaled approximately $11.2 million, $3.9 million and $2.6 million during fiscal years 2016, 2015 and 2014, respectively.