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Income Taxes Components of Deferred Taxes (Details) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2012 | Dec. 31, 2011
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Components of Deferred Tax Assets |  |
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Allowance for Doubtful Accounts | $ 1,110 | $ 1,210
Deferred Tax Assets, Inventory | 5,670 | 5,730
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Other | 34,880 | 32,110
Deferred Tax Assets, Operating Loss and Credit Carryforwards | 6,740 | 5,190
Deferred Tax Assets, Gross | 48,400 | 44,240
Deferred Tax Assets, Valuation Allowance | (4,440) | (2,950)
Deferred Tax Assets, Net of Valuation Allowance | 43,960 | 41,290
Components of Deferred Tax Liabilities |  |
Deferred Tax Liabilities, Property, Plant and Equipment | (19,800) | (20,330)
Deferred Tax Liabilities, Goodwill and Intangible Assets | (60,990) | (63,490)
Deferred Tax Liabilities, Other | (3,860) | (2,120)
Deferred Tax Liabilities, Gross | (84,650) | (85,940)
Deferred Tax Liabilities, Net | $ (40,690) | $ (44,650)

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