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Income Taxes - Tax Effects of Temporary Differences That Give Rise to the Company's Deferred Tax Assets and Liabilities (Detail) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Income Tax Disclosure [Abstract] |  |  |
Accrued compensation and benefits | $ 1,463 | $ 1,808 |
Inventory valuation reserves | 2,581 | 2,771 |
Benefit plan reserves | 7,773 | 9,468 |
Capital tax loss carryforwards | 0 | 2,034 |
Net operating loss carryforwards | 1,244 | 788 |
Other accrued expenses | 2,926 | 2,480 |
Unrealized foreign exchange | 743 | 58 |
Gross deferred tax assets | 16,730 | 19,407 |
Valuation allowance | (1,420) | (2,329) |
Net deferred tax assets | 15,310 | 17,078 |
Depreciation and other basis differences | (5,533) | (5,276) |
Intangibles | (2,828) | (3,571) |
Other | (132) | (90) |
Deferred tax liabilities | (8,493) | (8,937) |
Net deferred tax assets | 6,817 | 8,141 |
Deferred income tax benefit | 1,105 | 2,927 | 688
Items of other comprehensive income (loss) | (2,692) | (1,033) |
Currency translation | 263 | (254) |
Deferred tax balances from business acquisition | 0 | (1,036) |
Total change in net deferred tax assets | $ (1,324) | $ 604 |

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