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Income Taxes (Details) (USD $)
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Currently payable [Abstract]      
Federal $ 21,252,000 $ 22,394,000 $ 28,480,000
State 3,065,000 3,024,000 2,845,000
Foreign 24,781,000 22,065,000 22,713,000
Current income tax (expense), total 49,098,000 47,483,000 54,038,000
Deferred expense (benefit) [Abstract]      
Federal (5,125,000) 170,000 (5,669,000)
State 502,000 603,000 (274,000)
Foreign (1,555,000) 2,143,000 2,805,000
Deferred income tax (expense), total (6,178,000) 2,916,000 (3,138,000)
Income taxes 42,920,000 50,399,000 50,900,000
Deferred tax assets [Abstract]      
Benefit plans 21,148,000 17,375,000  
Liabilities and reserves 11,499,000 9,140,000  
Operating loss and credit carryovers 51,292,000 48,441,000  
Other 17,151,000 16,096,000  
Gross deferred tax assets 101,090,000 91,052,000  
Valuation allowance (43,048,000) (41,049,000)  
Deferred tax assets 58,042,000 50,003,000  
Deferred tax liabilities [Abstract]      
Property, plant and equipment (21,139,000) (19,430,000)  
Other assets (1,411,000) (2,784,000)  
Other (31,741,000) (26,668,000)  
Deferred tax liabilities (54,291,000) (48,882,000)  
Increase in Net Deferred Tax Assets   10,800,000  
Increase in Other Current Assets   6,000,000  
Increase in Other Comprehensive Income   16,800,000  
Net deferred tax assets 3,751,000 1,121,000  
Effective tax rate reconciliation [Abstract]      
Taxes at statutory rate (in hundredths) 35.00% 35.00% 35.00%
State income taxes, net of federal income tax benefit (in hundredths) 1.10% 1.50% 1.00%
Tax credits (in hundredths) (0.30%) 0.00% (0.20%)
Taxes on foreign earnings (in hundredths) (5.30%) (4.10%) (2.50%)
Resolution of prior years' tax matters (in hundredths) (0.70%) (1.40%) (0.60%)
Valuation allowance adjustments (in hundredths) (0.80%) (0.50%) (0.60%)
Revaluation of previously held interest 0.00% 0.00% (0.70%)
Other, net (in hundredths) (1.50%) (1.60%) (1.70%)
Effective tax rate (in hundredths) 27.50% 28.90% 29.70%
Earnings before income taxes [Abstract]      
United States 55,461,000 79,118,000 70,023,000
Foreign 100,754,000 95,189,000 101,361,000
Total 156,215,000 174,307,000 171,384,000
Unremitted earnings of foreign subsidiaries 427,900,000    
Reconciliation of change in liability for unrecognized tax benefits [Roll Forward]      
Balance at beginning of year 7,091,000 8,787,000  
Increases for tax positions taken in the current year 818,000 599,000  
Increases for tax positions taken in prior years 875,000 553,000  
Decreases related to settlements with tax authorities (3,113,000) (1,678,000)  
Decreases as a result of lapse of the applicable statutes of limitations (374,000) (1,362,000)  
Foreign currency exchange rate changes (2,000) 192,000  
Balance at the end of year 5,295,000 7,091,000 8,787,000
Unrecognized tax benefits that would impact the effective tax rate, if recognized 5,100,000    
Income tax interest and penalties accrued 100,000 1,000,000  
Expected decrease in liability for unrecognized tax benefits in the next fiscal year 1,700,000    
Foreign Country [Member]
      
Operating Loss Carryforwards [Line Items]      
Operating loss carryovers 128,900,000    
Operating loss carryovers, subject to expiration 9,900,000    
Operating loss carryovers, not subject to expiration 119,000,000    
State and Local Jurisdiction [Member]
      
Operating Loss Carryforwards [Line Items]      
Operating loss carryovers 103,100,000    
Operating loss carryovers, subject to expiration $ 103,100,000