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Retirement Plans - Additional Information (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Defined Benefit Plan Disclosure |  |  |
Accumulated other comprehensive income (loss), prior service cost expected to be recognized in 2016 | $ 100 |  |
Fair value of pension plans assets totaled | $ 326,600 |  |
United States Plans |  |  |
Defined Benefit Plan Disclosure |  |  |
Percentage of expected return on plan assets assumption | 4.80% |  |
Discount rate utilized to determine future pension obligations | 4.00% | 3.70% |
Fair value of pension plans assets totaled | $ 298,400 |  |
Contribution to defined benefit pension plans | 8,000 | $ 30,000 |
U.K. Defined Benefit Pension Plan |  |  |
Defined Benefit Plan Disclosure |  |  |
Fair value of pension plans assets totaled | 27,100 |  |
Taiwan Defined Benefit Pension Plan |  |  |
Defined Benefit Plan Disclosure |  |  |
Fair value of pension plans assets totaled | 1,000 |  |
U.S. Supplemental Executive Defined Benefit Pension Plan |  |  |
Defined Benefit Plan Disclosure |  |  |
Contribution to defined benefit pension plans | 2,500 | 1,800 |
Contribution to defined benefit pension plans in 2016 | 2,600 |  |
Non-United States Subsidiaries |  |  |
Defined Benefit Plan Disclosure |  |  |
Contribution to defined benefit pension plans | 800 | $ 1,200 |
Contribution to defined benefit pension plans in 2016 | 800 |  |
Postretirement Benefit Plans |  |  |
Defined Benefit Plan Disclosure |  |  |
Accumulated other comprehensive income (loss), prior service cost expected to be recognized in 2016 | $ (600) |  |
Discount rate utilized to determine future pension obligations | 3.90% | 3.50% | 4.10%
Contribution to defined benefit pension plans | $ 769 | $ 996 |
United States Pension Plans, Defined Benefit |  |  |
Defined Benefit Plan Disclosure |  |  |
Accumulated benefit obligation for defined benefit pension plans | $ 340,100 | $ 357,000 |
Percentage of expected return on plan assets assumption | 4.80% | 5.00% | 5.00%
Discount rate utilized to determine future pension obligations | 4.00% | 3.70% |
Fair value of pension plans assets totaled | $ 298,404 | $ 316,072 | $ 256,373
Contribution to defined benefit pension plans | 10,517 | 31,753 |
Foreign Pension Plans, Defined Benefit |  |  |
Defined Benefit Plan Disclosure |  |  |
Accumulated benefit obligation for defined benefit pension plans | $ 56,600 | $ 49,800 |
Percentage of expected return on plan assets assumption | 2.60% | 3.40% | 3.70%
Discount rate utilized to determine future pension obligations | 2.30% | 2.60% |
Fair value of pension plans assets totaled | $ 28,141 | $ 29,511 | $ 25,756
Contribution to defined benefit pension plans | $ 808 | $ 1,168 |

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- Definition For defined benefit pension plans, the actuarial present value of benefits (whether vested or nonvested) attributed by the pension benefit formula to employee service rendered before a specified date and based on employee service and compensation (if applicable) before that date. The accumulated benefit obligation differs from the projected benefit obligation in that it includes no assumption about future compensation levels. For plans with flat-benefit or nonpay-related pension benefit formulas, the accumulated benefit obligation and the projected benefit obligation are the same. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Accumulated Benefit Obligation -URI http://asc.fasb.org/extlink&oid=6503844 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920 + Details
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- Definition The interest rate used to adjust for the time value of money for the plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (k)(1) -URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920 + Details
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- Definition An assumption as to the rate of return on plan assets reflecting the average rate of earnings expected on the funds invested or to be invested to provide for the benefits included in the benefit obligation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Expected Long-Term Rate of Return on Plan Assets -URI http://asc.fasb.org/extlink&oid=6512046 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (k)(3) -URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920 + Details
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- Definition The increase in the fair value of plan assets from contributions made by the employer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b)(3) -URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those non-benefit obligations may be considered as reductions of plan assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 30 -Section 35 -Paragraph 50 -URI http://asc.fasb.org/extlink&oid=49178875&loc=d3e12355-114930 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920 + Details
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- Definition Amount included in accumulated other comprehensive income (AOCI) related to prior service cost (credit) expected to be recognized as components of net periodic benefit cost for the fiscal year that follows the most recent annual statement of financial position. + References No definition available. + Details
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- Definition Amount of employer's best estimate of contributions expected to be paid to the plan during the next fiscal year beginning after the date of the latest statement of financial position. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920 + Details
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