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Income Taxes (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Income before taxes |  |  |
United States | $ 67,355 | $ 79,812 | $ 42,429
Foreign | 51,303 | 23,294 | 20,545
Income before income taxes | 118,658 | 103,106 | 62,974
Current: |  |  |
Federal | 19,421 | 28,076 | 14,369
State | 1,618 | 1,768 | 876
Foreign | 11,864 | 5,456 | 5,976
Current income tax expense (benefit) | 32,903 | 35,300 | 21,221
Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract] |  |  |
Federal | 21 | (3,477) | (962)
State and local | (364) | (684) | (66)
Foreign | (1,264) | (357) | (1,463)
Deferred income tax expense (benefit) | (1,607) | (4,518) | (2,491)
Income Tax Expense (Benefit), Continuing Operations | 31,296 | 30,782 | 18,730
Reconciliation of income taxes |  |  |
Income tax expense at U.S. federal statutory rate | 41,530 | 36,087 | 22,041
State income taxes, net of federal tax benefit | 757 | 711 | 810
Foreign income, net of credit on foreign taxes | 501 | 48 | 137
Effective tax rate differential of earnings outside of U.S. | (8,257) | (4,983) | (1,901)
Foreign investment tax credit | 0 | (406) | (777)
Effective Income Tax Rate Reconciliation, Tax Credit, Research, Amount | (2,105) | 0 | (350)
Non-deductible (taxable) items | 865 | 2,885 | 424
Change in uncertain tax positions | (347) | (394) | (28)
Domestic production activities deduction | (2,237) | (2,490) | (1,626)
Other items | 589 | 676 | 0
Deferred tax assets: |  |  |
Accruals and reserves | 25,478 | 27,625 |
Pensions | 2,536 | 7,019 |
Inventory | 4,350 | 2,775 |
Stock options | 6,107 | 5,220 |
Tax credit carryforwards | 0 | 2,662 |
Foreign net operating loss carryforwards | 594 | 1,440 |
State net operating loss carryforward | 1,610 | 1,517 |
Other - net | 844 | 1,331 |
Total deferred tax assets before valuation allowance | 41,519 | 49,589 |
Valuation allowance | (1,250) | (1,766) |
Total deferred tax assets, net of valuation allowance | 40,269 | 47,823 |
Deferred tax liabilities: |  |  |
Property, plant and equipment | 17,248 | 15,705 |
Intangibles | 53,314 | 59,396 |
Deferred Tax Liabilities, Convertible Notes | 2,623 | 3,071 |
Total deferred tax liabilities | 73,185 | 78,172 |
Net deferred tax liabilities | 32,916 | 30,349 |
Deferred Tax Assets, Net, Current | (14,675) | (15,282) |
Deferred Tax Assets, Net, Noncurrent | (125) | (654) |
Long-term deferred tax liabilities | 47,716 | 46,285 |
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] |  |  |
Unrecognized Tax Benefits Beginning Balance | 3,339 | 2,440 | 2,468
Additions for tax positions of prior years | 299 | 1,921 | 128
Reductions for tax positions of prior years | (1,921) | 0 | (22)
Unrecognized Tax Benefits, Decreases Resulting from Settlements with Taxing Authorities | 0 | 905 | 0
Lapse of statutes of limitation | (776) | (117) | (134)
Unrecognized Tax Benefits Ending Balance | 941 | 3,339 | 2,440
Unrecognized Tax Benefits that Would Impact Effective Tax Rate | 410 | 851 |
Undistributed Earnings of Foreign Subsidiaries | 159,962 |  |
Income Taxes Paid | 24,977 | 19,193 | 17,130
Accrual for interest and penalties | 93 |  | 106
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense | 8 | 42 | 42
Possible future decreases in unrecognized tax benefits | $ 22 |  |

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- Definition Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Unrecognized Tax Benefit -URI http://asc.fasb.org/extlink&oid=6527854 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6907707&loc=SL6600010-109319 + Details
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- Definition Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6907707&loc=SL6600010-109319 + Details
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- Definition Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=6907707&loc=SL6600010-109319 + Details
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- Definition Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319 + Details
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- Definition Amount of expense for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319 + Details
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- Definition Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6907707&loc=SL6600010-109319 + Details
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- Definition Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (a)(4) -URI http://asc.fasb.org/extlink&oid=6907707&loc=SL6600010-109319 + Details
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- Definition The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6907707&loc=SL6600010-109319 + Details
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