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Income Taxes (Tables)
12 Months Ended
Dec. 31, 2011
Income Taxes [Abstract]  
Provision for income taxes
The provision for income taxes was as follows:

(in thousands)
 
2011
  
2010
  
2009
 
Currently payable:
         
Federal
 $28,480  $11,476  $16,637 
State
  2,845   1,939   2,711 
Foreign
  22,713   24,949   21,161 
    54,038   38,364   40,509 
Deferred (benefit) expense:
            
Federal
  (5,669)  7,320   (2,287)
State
  (274)  404   40 
Foreign
  2,805   961   (1,648)
    (3,138)  8,685   (3,895)
Income taxes
 $50,900  $47,049  $36,614 

Tax effects of temporary differences - Deferred tax assets and liabilities
The tax effects of temporary differences that give rise to significant portions of deferred tax assets and liabilities consisted of the following:

(in thousands)
 
2011
  
2010
 
Deferred tax assets:
      
Benefit plans
 $15,597  $12,802 
Liabilities and reserves
  9,482   10,397 
Foreign operating loss carryovers
  32,397   39,536 
Other
  16,084   14,782 
Gross deferred tax assets
  73,560   77,517 
Valuation allowance
  (34,863)  (39,084)
Deferred tax assets
  38,697   38,433 
Deferred tax liabilities:
        
Property, plant and equipment
  (18,565)  (24,298)
Other assets
  (1,999)  (2,755)
Other
  (25,182)  (19,820)
Deferred tax liabilities
  (45,746)  (46,873)
Net deferred tax liabilities
 $(7,049) $(8,440)

Effective income tax rate reconciliation
The effective tax rate differed from the statutory federal income tax rate of 35% as described below:

   
2011
  
2010
  
2009
 
Taxes at statutory rate
  35.0%  35.0%  35.0%
State income taxes, net of federal income tax benefit
  1.0   1.1   1.6 
Tax credits
  (0.2)  (0.3)  (0.3)
Taxes on foreign earnings
  (2.5)  (3.7)  (3.6)
Resolution of prior years' tax matters
  (0.6)  (1.5)  (2.1)
Valuation allowance adjustments
  (0.6)  -   (0.4)
Revaluation of previously held interest
  (0.7)  -   - 
Other, net
  (1.7)  (0.1)  (0.5)
Effective tax rate
  29.7%  30.5%  29.7%

Earnings before income taxes
Earnings before income taxes were as follows:

(in thousands)
 
2011
  
2010
  
2009
 
United States
 $70,023  $56,150  $46,467 
Foreign
  101,361   98,043   76,708 
Total
 $171,384  $154,193  $123,175 

Reconciliation of the change in liability for unrecognized tax benefits
A reconciliation of the change in the liability for unrecognized tax benefits for 2011 and 2010 is as follows:

(in thousands)
 
2011
  
2010
 
Balance at beginning of year
 $9,423  $12,213 
Increases for tax positions taken in the current year
  694   677 
Increases for tax positions taken in prior years
  365   870 
Decreases for tax positions taken in prior years
  (147)  (792)
Decreases related to settlements with tax authorities
  (206)  (2,276)
Decreases as a result of lapse of the applicable statutes of limitations
  (1,077)  (846)
Foreign currency exchange rate changes
  (265)  (423)
Balance at the end of year
 $8,787  $9,423