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Income tax provision (Tables)
12 Months Ended
Dec. 31, 2011
Income tax provision [Abstract]  
Components of the income tax provision for continuing operations
The components of the income tax provision for continuing operations were as follows:

   
2011
  
2010
  
2009
 
Current tax provision:
         
Federal
 $49,702  $49,909  $37,945 
State
  9,168   8,424   4,323 
Foreign
  3,269   3,859   1,349 
Total
  62,139   62,192   43,617 
Deferred tax provision
  9,350   20,362   12,039 
Provision for income taxes
 $71,489  $82,554  $55,656 
Reconciliation of effective income tax rate
The effective tax rate on pre-tax income from continuing operations reconciles to the U.S. federal statutory tax rate of 35% as follows:

   
2011
  
2010
  
2009
 
Income tax at federal statutory rate
  35.0%   35.0%   35.0% 
State income tax expense, net of federal income tax benefit
  2.8%   2.8%   3.5% 
Change in unrecognized tax benefits, including interest and penalties
  0.5%   (1.3% )   0.1% 
Non-deductible portion of goodwill impairment charge (see Note 7)
  -   -   2.9% 
Qualified production activity deduction
  (2.4% )   (2.4%)   (1.8%) 
Impact of health care legislation on deferred income taxes
  (1.2% )   1.7%   - 
Receivables for prior year tax returns(1)
  (0.8% )   -   (2.2%) 
Other
  (0.8% )   (0.8%)   (1.6%) 
Income tax provision
  33.1%   35.0%   35.9% 

 (1) Relates to amendments to prior year income tax returns claiming refunds primarily associated with foreign tax returns for 2011 and federal and state income tax credits for 2009.
Rollforward of unrecognized tax benefits
A reconciliation of the beginning and ending amount of unrecognized tax benefits, excluding accrued interest and penalties, is as follows:

   
Unrecognized tax benefits
 
Balance, December 31, 2008
 $11,457 
Additions for tax positions of current year
  606 
Additions for tax positions of prior years
  2,316 
Reductions for tax positions of prior years
  (2,152)
Settlements
  (3,186)
Lapse of statutes of limitations
  (1,063)
Balance, December 31, 2009
  7,978 
Additions for tax positions of current year
  641 
Additions for tax positions of prior years
  1,406 
Fair value of acquired tax positions (see Note 4)
  1,069 
Reductions for tax positions of prior years
  (2,634)
Settlements
  (640)
Lapse of statutes of limitations
  (1,282)
Balance, December 31, 2010
  6,538 
Additions for tax positions of current year
  510 
Additions for tax positions of prior years
  1,646 
Reductions for tax positions of prior years
  (219)
Settlements
  (1,507)
Lapse of statutes of limitations
  (732)
Balance, December 31, 2011
 $6,236 
Schedule of deferred tax assets and liabilities
Tax-effected temporary differences which gave rise to deferred tax assets and liabilities as of December 31 were as follows:
 
  2011  2010 
   
Deferred
tax
assets
  
Deferred
tax
liabilities
  
Deferred
tax
assets
  
Deferred
tax
liabilities
 
Goodwill
 $-  $40,761  $-  $34,818 
Intangible assets
  -   28,831   -   33,774 
Property, plant and equipment
  -   6,080   -   4,201 
Deferred advertising costs
  -   5,769   -   5,964 
Early extinguishment of debt (see Note 13)
  -   3,775   -   3,784 
Employee benefit plans
  29,776   -   29,593   - 
Reserves and accruals
  6,574   -   5,457   - 
Net operating loss and tax credit carryforwards
  3,366   -   5,760   - 
Inventories
  2,800   -   2,771   - 
Federal benefit of state uncertain tax positions
  1,776   -   1,719   - 
Interest rate lock agreements (see Note 6)
  1,751   -   2,709   - 
All other
  1,748   4,558   1,370   3,061 
Total deferred taxes
  47,791   89,774   49,379   85,602 
Valuation allowances
  (608
)
  -   (1,139
)
  - 
Net deferred taxes
 $47,183  $89,774  $48,240  $85,602