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Supplemental Balance Sheet Information
3 Months Ended
Dec. 31, 2019
Balance Sheet Related Disclosures [Abstract]  
Supplemental Balance Sheet Information
Selected supplemental balance sheet information is presented below.
 December 31,September 30,
 20192019
 (in millions)
Inventories:
Purchased components and raw material$100.2  $95.2  
Work in process44.1  43.7  
Finished goods68.6  52.5  
$212.9  $191.4  
Other current assets:
Maintenance and repair tooling$4.2  $4.2  
Income taxes3.1  4.7  
Other18.4  17.1  
$25.7  $26.0  
Property, plant and equipment:
Land$5.2  $5.2  
Buildings68.8  68.9  
Machinery and equipment368.8  362.9  
Construction in progress57.0  48.0  
499.8  485.0  
Accumulated depreciation(275.3) (267.9) 
$224.5  $217.1  
Other current liabilities:
Compensation and benefits$20.1  $28.5  
Customer rebates10.6  8.7  
Taxes other than income taxes3.1  3.3  
Warranty6.8  6.5  
Income taxes—  0.6  
Environmental1.2  1.2  
Interest1.1  7.3  
Restructuring1.6  1.7  
Walter Energy Accrual—  22.0  
Other19.4  13.2  
$63.9  $93.0