XML 58 R44.htm IDEA: XBRL DOCUMENT v2.4.0.8
Summary of Significant Accounting Policies (Narrative) (Details) (USD $)
In Millions, unless otherwise specified
 12 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Asset Retirement Obligation $ 3.2 $ 3.6
Exposure to Workers Compensation Claims, Per Incident 1  
Workers Compensation Undiscounted Basis Liability 17.0 20.0
Workers' Compensation Liability 14.7 17.2
Income Tax Benefit, Likelihood of Realization Threshold 50.00%  
Deferred Finance Costs, Net 6.7  
Minimum [Member]
    
Finite-Lived Tangible Asset, Useful Life, Maximum 3 years  
Debt Instrument, Term 5 years  
Maximum [Member]
    
Finite-Lived Tangible Asset, Useful Life, Maximum 10 years  
Debt Instrument, Term 10 years  
Land Improvements [Member] | Minimum [Member]
    
Property, Plant and Equipment, Useful Life, Minimum 10 years  
Land Improvements [Member] | Maximum [Member]
    
Property, Plant and Equipment, Useful Life, Minimum 20 years  
Building [Member] | Minimum [Member]
    
Property, Plant and Equipment, Useful Life, Minimum 10 years  
Building [Member] | Maximum [Member]
    
Property, Plant and Equipment, Useful Life, Minimum 40 years  
Machinery and Equipment [Member] | Minimum [Member]
    
Property, Plant and Equipment, Useful Life, Minimum 3 years  
Machinery and Equipment [Member] | Maximum [Member]
    
Property, Plant and Equipment, Useful Life, Minimum 15 years  
Software and Software Development Costs [Member] | Minimum [Member]
    
Property, Plant and Equipment, Useful Life, Minimum 3 years  
Software and Software Development Costs [Member] | Maximum [Member]
    
Property, Plant and Equipment, Useful Life, Minimum 6 years  
U.S. Pipe [Member] | Maximum [Member]
    
Discontinued Operations, Receivable from Buyer of Discontinued Operation 6.5 11.8
Other Current Assets [Member] | U.S. Pipe [Member]
    
Discontinued Operations, Receivable from Buyer of Discontinued Operation 1.6  
Other Noncurrent Assets [Member] | U.S. Pipe [Member]
    
Discontinued Operations, Receivable from Buyer of Discontinued Operation 4.0  
ABL Agreement [Member]
    
Deferred Finance Costs, Net 2.1  
Seven Point Three Seven Five Senior Subordinated Notes [Member]
    
Deferred Finance Costs, Net 2.8  
Eight Point Seven Five Senior Unsecured Notes [Member]
    
Deferred Finance Costs, Net $ 1.8