v2.4.0.8
Summary Of Significant Accounting Policies (Narrative) (Details) (USD $)
 12 Months Ended
Sep. 30, 2014
customers
M
Sep. 30, 2013
Sep. 30, 2012
customers
Sep. 30, 2010
Sep. 30, 2011
Summary Of Significant Accounting Policies [Line Items]          
Maximum payment terms on software purchases for credit-worthy customers (in months) 24        
Major number of customers 0   0    
Ceiling percentage of revenue for major customer 10.00%        
Allowance for doubtful accounts receivable $ 1,600,000 $ 3,000,000 $ 3,400,000   $ 3,900,000
Accounts receivable written-off, net of recoveries 600,000 600,000 800,000    
Bad debt expense including general and administrative expense (833,000) 213,000 258,000    
Financing receivables 58,141,000 53,123,000      
Financing receivables past due 0   0    
Reserve for credit losses   0 0 0  
Sale of finance receivable 24,500,000 17,000,000 14,300,000    
Uncollectible financing receivables written-off   0 0 0  
Fair value of our forward contracts 116,988,000 124,434,000      
Net losses on foreign currency exposures 4,500,000 2,000,000 5,900,000    
Net realized and unrealized (gain) loss on forward contracts (excluding the underlying foreign currency exposure being hedged) 3,800,000 3,400,000 3,600,000    
Development costs for software 0   0 0  
Amortizable intangible assets 48,900,000 54,000,000      
Advertising expense 2,200,000 4,200,000 2,800,000    
Cumulative translation adjustment gains (loss) (24,500,000) (400,000)      
Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), Net Gains (Losses), before Tax 95,925,000 74,357,000      
Pension benefits net of tax (69,900,000) (50,800,000)      
Accounts Receivable [Member]
          
Summary Of Significant Accounting Policies [Line Items]          
Financing receivables, current 44,600,000 36,100,000      
Other Assets [Member]
          
Summary Of Significant Accounting Policies [Line Items]          
Billed but uncollected maintenance receivable 116,200,000 108,600,000      
Long-term accounts receivable from customers for contracts with extended payment terms 13,500,000 17,000,000      
Other Current Assets [Member]
          
Summary Of Significant Accounting Policies [Line Items]          
Fair value of our forward contracts 300,000        
Other Current Liabilities [Member]
          
Summary Of Significant Accounting Policies [Line Items]          
Fair value of our forward contracts 900,000 400,000      
Standard & Poor's, BBB-1 Rating and Above-Tier 1 [Member]
          
Summary Of Significant Accounting Policies [Line Items]          
Financing receivables 41,152,000 42,189,000      
Internally Assigned Grade, Tier 2 [Member]
          
Summary Of Significant Accounting Policies [Line Items]          
Financing receivables 16,989,000 10,934,000      
Internally Assigned Grade, Tier 3 [Member]
          
Summary Of Significant Accounting Policies [Line Items]          
Financing receivables $ 0 $ 0      
Minimum [Member] | Computer Hardware And Software [Member]
          
Summary Of Significant Accounting Policies [Line Items]          
Amortization period, minimum (in years) 3 years        
Minimum [Member] | Furniture And Fixtures [Member]
          
Summary Of Significant Accounting Policies [Line Items]          
Amortization period, minimum (in years) 3 years        
Maximum [Member] | Purchased Software [Member]
          
Summary Of Significant Accounting Policies [Line Items]          
Amortization period, minimum (in years) 11 years        
Maximum [Member] | Customer Lists [Member]
          
Summary Of Significant Accounting Policies [Line Items]          
Amortization period, minimum (in years) 12 years        
Maximum [Member] | Trademarks And Trade Names [Member]
          
Summary Of Significant Accounting Policies [Line Items]          
Amortization period, minimum (in years) 12 years        
Maximum [Member] | Computer Hardware And Software [Member]
          
Summary Of Significant Accounting Policies [Line Items]          
Amortization period, minimum (in years) 5 years        
Maximum [Member] | Furniture And Fixtures [Member]
          
Summary Of Significant Accounting Policies [Line Items]          
Amortization period, minimum (in years) 8 years