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, 2013
Sep. 30, 2012
Sep. 30, 2011
Current [Abstract]      
Federal $ 15,703 $ 14,060 $ 15,306
State 3,423 2,483 3,004
Foreign 4,804 6,437 10,689
Total provision for income taxes, current 23,930 22,980 28,999
Deferred 2,734 5,737 9,557
Total 26,664 28,717 38,556
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) 2.70% 2.10% 2.50%
Foreign taxes less than federal statutory rate (in hundredths) (3.10%) (0.60%) (1.30%)
Other (in hundredths) (1.90%) (2.30%) (1.80%)
Effective tax rate (in hundredths) 32.70% 34.20% 34.40%
Foreign subsidiaries income before income taxes 23,662 24,654 36,870
Undistributed earnings of foreign subsidiaries 225,084    
Deferred tax assets [Abstract]      
Postretirement benefits 7,365 11,244  
Environmental reserve 1,903 2,217  
Pension costs 19,415 30,145  
Deferred compensation 66 281  
Stock options 10,690 9,653  
Other 24,261 24,370  
Deferred tax assets 63,700 77,910  
Deferred tax liabilities:      
Depreciation (3,693) (4,220)  
Goodwill (67,012) (57,767)  
Other (1,630) (206)  
Deferred tax liabilities (72,335) (62,193)  
Net deferred tax asset (8,635) 15,717  
Changes in the total amount of gross unrecognized tax benefits [Roll Forward]      
Balance, beginning of year 4,501 4,721 5,215
Increases for tax positions of prior years 0 742 0
Decreases for tax positions of prior years (124) (74) (96)
Increases based on tax positions related to the current year 708 137 202
Decreases due to settlements with taxing authorities (250) (602) (38)
Decreases due to lapse of statute of limitation (319) (423) (562)
Balance, end of year 4,516 4,501 4,721
Unrecognized tax benefits that would impact effective tax rate 72    
Interest and penalties on tax uncertainties 95    
Total penalties and interest accrued $ 2,401 $ 2,306  
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 2010 and forward    
Australia [Member]
     
Open Tax Years By Jurisdiction [Line Items]      
Years subject to examination 2009 and forward    
Asia [Member]
     
Open Tax Years By Jurisdiction [Line Items]      
Years subject to examination 2008 and forward