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INCOME TAXES (Tables) | 12 Months Ended
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Dec. 31, 2011
Income Before Income Taxes | Income before income taxes was taxed in the following jurisdictions in each of the years ended December 31:
|  | 2011 |  |  | 2010 |  |  | 2009 |
|  | (Dollars in thousands) |
Domestic |  | $ | 266,586 |  |  | $ | 223,623 |  |  | $ | 231,915 |
Foreign |  |  | 23,581 |  |  |  | (1,943 | ) |  |  | 15,684 |
Total |  | $ | 290,167 |  |  | $ | 221,680 |  |  | $ | 247,599 |
The Components of the Provision for Income Taxes | The components of the provision for income taxes are as follows:
|  | 2011 |  |  | 2010 |  |  | 2009 |
|  | (Dollars in thousands) |
Current: |  |  |  |  |  |  |  |  |  |  |  |
Federal |  | $ | 61,905 |  |  | $ | 49,763 |  |  | $ | 55,633 |
State |  |  | 4,039 |  |  |  | 6,914 |  |  |  | 9,659 |
Foreign |  |  | 7,287 |  |  |  | (1,001 | ) |  |  | 7,582 |
Current income tax provision |  |  | 73,231 |  |  |  | 55,676 |  |  |  | 72,874 |
Deferred: |  |  |  |  |  |  |  |  |  |  |  |
Federal |  |  | 25,059 |  |  |  | 20,808 |  |  |  | 13,286 |
State |  |  | (883 | ) |  |  | 3,381 |  |  |  | 2,306 |
Foreign |  |  | (413 | ) |  |  | (2,831 | ) |  |  | (276 | )
Deferred income tax provision |  |  | 23,763 |  |  |  | 21,358 |  |  |  | 15,316 |
|  | $ | 96,994 |  |  | $ | 77,034 |  |  | $ | 88,190 |
Variation of the Provision for Income Taxes from the Statutory U.S. Federal Income Tax Rate | The provision for income taxes varied from income taxes computed at the statutory U.S. federal income tax rate as a result of the following:
|  | 2011 |  |  | 2010 |  |  | 2009 |
|  | (Dollars in thousands) |
Income taxes computed at the statutory U.S. federal income tax rate |  | $ | 101,559 |  |  | $ | 77,588 |  |  | $ | 86,660 |
State income taxes, net of federal tax benefit |  |  | 8,557 |  |  |  | 5,910 |  |  |  | 6,345 |
Tax liabilities required |  |  | 507 |  |  |  | 2,488 |  |  |  | 2,578 |
Valuation allowance |  |  | (6,662 | ) |  |  | (88 | ) |  |  | 1,525 |
Manufacturing exemption |  |  | (5,128 | ) |  |  | (6,834 | ) |  |  | (3,138 | )
Tax credit refunds, net |  |  | (3,165 | ) |  |  | (2,096 | ) |  |  | (1,255 | )
Foreign earnings taxed at other than 35% |  |  | 94 |  |  |  | (2,406 | ) |  |  | (2,292 | )
Other |  |  | 1,232 |  |  |  | 2,472 |  |  |  | (2,233 | )
|  | $ | 96,994 |  |  | $ | 77,034 |  |  | $ | 88,190 |
Effective tax rate |  |  | 33.4 | % |  |  | 34.8 | % |  |  | 35.6 | %
Significant Components of Deferred Tax Assets and Liabilities | Significant components of our deferred tax assets and liabilities at December 31 are as follows:
|  | 2011 |  |  | 2010 |
|  | (Dollars in thousands) |
Deferred tax assets: |  |  |  |  |  |  |  |
Pension and other postretirement liabilities |  | $ | 49,273 |  |  | $ | 29,936 |
Rationalization and other accrued liabilities |  |  | 25,481 |  |  |  | 19,886 |
AMT and other credit carryforwards |  |  | 6,129 |  |  |  | 5,676 |
Net operating loss carryforwards |  |  | 21,228 |  |  |  | 21,195 |
Foreign currency translation |  |  | 2 |  |  |  | 3,279 |
Inventory and related reserves |  |  | 981 |  |  |  | 12,084 |
Other |  |  | 8,301 |  |  |  | 10,451 |
Total deferred tax assets |  |  | 111,395 |  |  |  | 102,507 |
Deferred tax liabilities: |  |  |  |  |  |  |  |
Property, plant and equipment |  |  | (205,177 | ) |  |  | (158,671 | )
Other intangible assets |  |  | (27,387 | ) |  |  | (24,827 | )
Foreign currency translation |  |  | (18,078 | ) |  |  | — |
Other |  |  | (4,322 | ) |  |  | (7,452 | )
Total deferred tax liabilities |  |  | (254,964 | ) |  |  | (190,950 | )
Valuation allowance |  |  | (11,840 | ) |  |  | (16,231 | )
|  | $ | (155,409 | ) |  | $ | (104,674 | )
Reconciliation of the Beginning and Ending Amount of Gross Unrecognized Tax Benefits | A reconciliation of the beginning and ending amount of gross unrecognized tax benefits included as other liabilities in our Consolidated Balance Sheets is as follows:
|  | 2011 |  |  | 2010 |
|  | (Dollars in thousands) |
Balance at January 1, |  | $ | 39,065 |  |  | $ | 37,046 |
Increase based upon tax positions of current year |  |  | 773 |  |  |  | 1,555 |
Increase based upon tax positions of a prior year |  |  | 1,594 |  |  |  | 993 |
Increase due to acquisitions |  |  | 8,968 |  |  |  | — |
Decrease based upon a lapse in the statute of limitations |  |  | (2,345 | ) |  |  | (529 | )
Balance at December 31, |  | $ | 48,055 |  |  | $ | 39,065 |

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