Annual report pursuant to Section 13 and 15(d)

INCOME TAXES (Details)

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INCOME TAXES (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Sep. 30, 2010
Current [Abstract]      
Federal $ 14,060 $ 15,306 $ 20,898
State 2,483 3,004 3,191
Foreign 6,437 10,689 9,325
Total provision for income taxes, current 22,980 28,999 33,414
Deferred 5,737 9,557 5,225
Total 28,717 38,556 38,639
Reconciliation of the federal statutory tax rate to the consolidated effective tax rate [Abstract]      
Federal statutory tax rate (in hundredths) 35.00% 35.00% 35.00%
Effect of state income taxes, net of federal deduction (in hundredths) 2.10% 2.50% 2.60%
Foreign taxes less than federal statutory rate (in hundredths) (0.60%) (1.30%) (0.70%)
Other (in hundredths) (2.30%) (1.80%) (1.90%)
Effective tax rate (in hundredths) 34.20% 34.40% 35.00%
Foreign subsidiaries income before income taxes 24,654 36,870 36,040
Deferred tax assets [Abstract]      
Postretirement benefits 11,244 10,743  
Environmental reserve 2,217 2,430  
Pension costs 30,145 25,524  
Deferred compensation 281 1,037  
Stock options 9,653 9,447  
Other 24,370 22,790  
Deferred tax assets 77,910 71,971  
Deferred tax liabilities:      
Depreciation (4,220) (3,503)  
Goodwill (57,767) (48,494)  
Other (206) (1,441)  
Deferred tax liabilities (62,193) (53,438)  
Net deferred tax asset 15,717 18,533  
Changes in the total amount of gross unrecognized tax benefits [Roll Forward]      
Balance, beginning of year 2,928 3,422 3,575
Increases for tax positions of prior years 742 0 437
Decreases for tax positions of prior years (74) (96) (506)
Increases based on tax positions related to the current year 137 202 355
Decreases due to settlements with taxing authorities (602) (38) (57)
Decreases due to lapse of statute of limitation (423) (562) (382)
Balance, end of year 2,708 2,928 3,422
Unrecognized tax benefits that could be recognized in the next 12 months 36    
Increase (decrease) in interest and penalties on tax uncertainties 29    
Total penalties and interest accrued 1,871 1,842  
United States - Federal [Member]
     
Open Tax Years By Jurisdiction [Line Items]      
Years subject to examination 2010 and forward    
United States - State [Member]
     
Open Tax Years By Jurisdiction [Line Items]      
Years subject to examination 2009 and forward    
Canada [Member]
     
Open Tax Years By Jurisdiction [Line Items]      
Years subject to examination 2008 and forward    
Europe [Member]
     
Open Tax Years By Jurisdiction [Line Items]      
Years subject to examination 2004 and forward    
United Kingdom [Member]
     
Open Tax Years By Jurisdiction [Line Items]      
Years subject to examination 2009 and forward    
Australia [Member]
     
Open Tax Years By Jurisdiction [Line Items]      
Years subject to examination 2008 and forward    
Asia [Member]
     
Open Tax Years By Jurisdiction [Line Items]      
Years subject to examination 2005 and forward    
Undistributed Earnings of Foreign Subsidiaries [Member]
     
Deferred Tax Liability Not Recognized [Line Items]      
Gross amount on which deferred tax liability is not recognized $ 189,067