Annual report pursuant to Section 13 and 15(d)

PROPERTY, PLANT AND EQUIPMENT (Details)

v3.10.0.1
PROPERTY, PLANT AND EQUIPMENT (Details) - USD ($)
$ in Thousands
 12 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2016
Property, Plant and Equipment [Line Items]      
Total property, plant and equipment, net $ 252,775 $ 235,533  
Depreciation expense 45,412 44,668 $ 44,659
Buildings      
Property, Plant and Equipment [Line Items]      
Property, plant and equipment, gross 113,027 104,604  
Machinery, equipment and other      
Property, Plant and Equipment [Line Items]      
Property, plant and equipment, gross 452,846 412,980  
Buildings, Machinery and Equipment      
Property, Plant and Equipment [Line Items]      
Property, plant and equipment, gross 565,873 517,584  
Less accumulated depreciation (357,827) (335,346)  
Total property, plant and equipment, net 208,046 182,238  
Land      
Property, Plant and Equipment [Line Items]      
Property, plant and equipment, gross 18,017 16,845  
Construction in progress      
Property, Plant and Equipment [Line Items]      
Property, plant and equipment, gross $ 26,712 $ 36,450