Annual report pursuant to Section 13 and 15(d)

Income Taxes (Details)

v3.10.0.1
Income Taxes (Details) - USD ($)
12 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2016
Jan. 01, 2018
Dec. 31, 2017
Income Tax Disclosure [Abstract]          
Unrecognized Tax Benefits that Would Impact Effective Tax Rate $ 12,100,000 $ 9,900,000      
FederalCorporateTaxRate       21.00% 35.00%
BlendedCorporateTaxRate 24.50%        
Components of earnings before income taxes and the consolidated income tax provision:          
Domestic $ 33,700,000 108,200,000 $ 99,300,000    
Foreign 112,800,000 80,100,000 64,800,000    
Income (Loss) from Subsidiaries, before Tax 146,500,000 188,300,000 164,100,000    
Current provision:          
Federal 38,200,000 500,000 28,900,000    
State 6,700,000 (400,000) 5,100,000    
Foreign 16,700,000 22,700,000 18,000,000    
Total current provision 61,600,000 22,800,000 52,000,000    
Deferred provision (benefit):          
Federal (7,500,000) 32,000,000 3,200,000    
State 500,000 5,000,000 (700,000)    
Foreign 10,700,000 100,000 (7,200,000)    
Total deferred provision (benefit) 3,700,000 37,100,000 (4,700,000)    
Income tax expense $ 65,300,000 $ 59,900,000 $ 47,300,000    
Reconciliation of the effective income tax rate with the U.S. federal statutory income tax rate          
Federal statutory rates (as a percent) 24.50% 35.00% 35.00%    
Adjustments resulting from the tax effect of:          
State income taxes, net of federal benefit 2.40% 1.60% 2.00%    
Foreign income tax rate differential (as a percent) (0.60%) (5.80%) (6.70%)    
Domestic manufacturer's deduction (as a percent) (1.20%) (0.30%) (1.90%)    
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-based Compensation Cost, Percent (1.60%) (1.10%) (1.50%)    
Effective Income Tax Rate Reconciliation, Deduction, Percent (1.70%) 2.70% (0.00%)    
Valuation allowance (as a percent) (0.70%) (1.30%) 1.70%    
Effective Income Tax Rate Reconciliation, Tax Contingency, Percent 0.00% 0.00% 0.00%    
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Impairment Losses, Percent 10.00% 0.00% 0.00%    
Effective Income Tax Rate Reconciliation, Repatriation of Foreign Earnings, Percent 20.00% 0.00% 0.00%    
effective income tax rate, deferred tax impact of rate change (9.40%) 0.00% 0.00%    
Other, net (as a percent) 1.80% 1.00% 0.20%    
Effective income tax rate (as a percent) 44.60% 31.80% 28.80%    
Deferred tax assets:          
Employee benefit accruals $ 29,000,000 $ 46,000,000      
Loss and tax credit carryforwards 37,300,000 43,700,000      
Rebates and other discounts 4,400,000 5,800,000      
Self-insurance reserves 2,500,000 4,600,000      
Inventory, net 2,000,000 3,100,000      
Other, net 8,500,000 12,600,000      
Total deferred tax assets before valuation allowance 83,700,000 115,800,000      
Less valuation allowance (1,800,000) (3,100,000)      
Total deferred tax assets, net 81,900,000 112,700,000      
Deferred tax liabilities:          
Depreciation (8,300,000) (11,600,000)      
Amortization 105,300,000 134,900,000      
Long-term contracts and customer prepayments (38,900,000) (28,900,000)      
Deferred Tax Liabilities, Undistributed Foreign Earnings 500,000 4,200,000      
Other, net (1,800,000) (5,100,000)      
Total deferred tax liabilities (154,800,000) (184,700,000)      
Deferred tax liabilities, net (72,900,000) (72,000,000)      
Amounts recorded in the balance sheets:          
Deferred Tax Assets, Net of Valuation Allowance, Noncurrent 3,500,000 3,700,000      
Deferred tax liabilities, non-current (76,400,000) (75,700,000)      
Deferred tax liabilities, net (72,900,000) (72,000,000)      
Deferred income tax assets related to U.S. federal and state tax credit carryforwards 2,300,000        
Deferred income tax assets related to foreign net operating loss carryforwards 35,000,000        
Current income tax payable 19,500,000 18,300,000      
Deferred Tax Liability, Unremitted Earnings of Foreign Subsidiaries 0.5 4,200,000      
Total permanently reinvested earnings $ 321,700,000 $ 241,200,000