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RETIREMENT PLANS (Tables) | 62 Months Ended
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Dec. 31, 2012
Defined Benefit Pension Plans |
Defined Benefit Pension and Postretirement Benefit Plan Assets and Obligations | The December 31 balances of these defined benefit pension plans assets and obligations are shown below:
|  | 2012 |  |  | 2011 |
Assets and Obligations |  |  | (in thousands) |
Change in benefit obligation: |  |  |  |  |  |  |  |
Projected benefit obligation: |  |  |  |  |  |  |  |
Beginning of year |  | $ | 390,278 |  |  | $ | 337,796 |
Service cost |  |  | 2,787 |  |  |  | 2,735 |
Interest cost |  |  | 15,670 |  |  |  | 17,466 |
Actuarial loss |  |  | 31,912 |  |  |  | 54,248 |
Benefits paid |  |  | (65,650 | ) |  |  | (13,260 | )
Curtailment |  |  | — |  |  |  | 210 |
Settlement |  |  | — |  |  |  | (7,637 | )
Transfers |  |  | — |  |  |  | (564 | )
Non-U.S. currency movement |  |  | 1,501 |  |  |  | (716 | )
End of year |  |  | 376,498 |  |  |  | 390,278 |
Change in plan assets: |  |  |  |  |  |  |  |
Fair value of plan assets: |  |  |  |  |  |  |  |
Beginning of year |  |  | 339,580 |  |  |  | 294,988 |
Company contributions |  |  | 3,306 |  |  |  | 10,169 |
Plan participants’ contributions |  |  | 108 |  |  |  | 51 |
Actual return on plan assets |  |  | 24,621 |  |  |  | 55,345 |
Benefits paid |  |  | (65,650 | ) |  |  | (13,260 | )
Settlement |  |  | — |  |  |  | (7,637 | )
Non-U.S. currency movement |  |  | 934 |  |  |  | (76 | )
End of year |  |  | 302,899 |  |  |  | 339,580 |
Funded status |  | $ | (73,599 | ) |  | $ | (50,698 | )
Amounts Recorded within Statement of Financial Position | The following table provides amounts recorded within the account line items of the statement of financial position as of December 31:
|  | 2012 |  |  | 2011 |
|  | (in thousands) |
Retirement plans assets |  | $ | 3,282 |  |  | $ | 8,840 |
Accrued employees’ compensation and withholdings |  |  | (2,810 | ) |  |  | (2,524 | )
Retirement plans liabilities |  |  | (74,071 | ) |  |  | (57,014 | )
Funded status |  | $ | (73,599 | ) |  | $ | (50,698 | )
Amounts Recognized in Accumulated Other Comprehensive Loss | The following table provides amounts recognized in accumulated other comprehensive income (loss) as of December 31:
|  | 2012 |  |  | 2011 |
|  | (in thousands) |
Prior service cost |  | $ | 656 |  |  | $ | 888 |
Total recognized in other comprehensive income (loss), before tax |  |  | 656 |  |  |  | 888 |
Deferred taxes |  |  | 321 |  |  |  | 236 |
Total recognized in other comprehensive income (loss), net of tax |  | $ | 977 |  |  | $ | 1,124 |
Pension Plans with Accumulated Benefit Obligation and Projected Benefit Obligation in Excess of Plan Assets | Information for pension plans with an accumulated benefit obligation in excess of plan assets as of December 31:
|  | 2012 |  |  | 2011 |
|  | (in millions) |
Projected benefit obligation |  | $ | 75.6 |  |  | $ | 60.2 |
Accumulated benefit obligation |  |  | 65.7 |  |  |  | 52.2 |
Fair value of plan assets |  |  | 0.8 |  |  |  | 0.7 |
Net Periodic Pension Costs | For the years ended December 31, 2012, 2011 and 2010, Teradyne’s net periodic pension cost was comprised of the following:
|  | 2012 |  |  | 2011 |  |  | 2010 |
|  | (in thousands) |
Components of Net Periodic Pension Cost: |  |  |  |  |  |  |  |  |  |  |  |
Service cost |  | $ | 2,787 |  |  | $ | 2,735 |  |  | $ | 3,655 |
Interest cost |  |  | 15,670 |  |  |  | 17,466 |  |  |  | 17,716 |
Expected return on plan assets |  |  | (15,946 | ) |  |  | (15,602 | ) |  |  | (17,585 | )
Amortization of prior service cost |  |  | 232 |  |  |  | 621 |  |  |  | 726 |
Net actuarial loss (gain) |  |  | 23,237 |  |  |  | 12,583 |  |  |  | (469 | )
Settlement loss (gain) |  |  | — |  |  |  | 1,567 |  |  |  | (3,113 | )
Total net periodic pension cost |  | $ | 25,980 |  |  | $ | 19,370 |  |  | $ | 930 |
Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income: |  |  |  |  |  |  |  |  |  |  |  |
Reversal of amortization items: |  |  |  |  |  |  |  |  |  |  |  |
Prior service cost |  |  | (232 | ) |  |  | (621 | ) |  |  | (726 | )
Total recognized in other comprehensive income |  |  | (232 | ) |  |  | (621 | ) |  |  | (726 | )
Total recognized in net periodic pension cost and other comprehensive income |  | $ | 25,748 |  |  | $ | 18,749 |  |  | $ | 204 |
Weighted Average Assumptions to Determine Net Periodic Pension Cost | Weighted Average Assumptions to Determine Net Periodic Pension Cost at January 1
|  | United States Plans |  |  | Foreign Plans |
|  | 2012 |  |  | 2011 |  |  | 2010 |  |  | 2012 |  |  | 2011 |  |  | 2010 |
Discount rate |  |  | 4.2 | % |  |  | 5.3 | % |  |  | 5.8 | % |  |  | 4.9 | % |  |  | 5.0 | % |  |  | 5.4 | %
Expected return on plan assets |  |  | 5.0 |  |  |  | 5.5 |  |  |  | 7.5 |  |  |  | 3.1 |  |  |  | 3.5 |  |  |  | 3.7 |
Salary progression rate |  |  | 3.0 |  |  |  | 4.0 |  |  |  | 4.0 |  |  |  | 3.4 |  |  |  | 4.0 |  |  |  | 4.2 |
Weighted Average Assumptions to Determine Pension Obligations | Weighted Average Assumptions to Determine Pension Obligations at December 31
|  | United States Plans |  |  | Foreign Plans |
|  | 2012 |  |  | 2011 |  |  | 2012 |  |  | 2011 |
Discount rate |  |  | 3.6 | % |  |  | 4.2 | % |  |  | 3.7 | % |  |  | 4.9 | %
Salary progression rate |  |  | 3.0 |  |  |  | 3.0 |  |  |  | 3.5 |  |  |  | 3.4 |
Weighted Average Pension Asset Allocations by Category | Teradyne’s weighted average pension asset allocation at December 31, 2012 and 2011, by asset category is as follows:
|  | United States Plan |  |  | Foreign Plans |
|  | 2012 |  |  | 2011 |  |  | 2012 |  |  | 2011 |
Fixed Income Securities |  |  | 85.8 | % |  |  | 86.7 | % |  |  | 49.2 | % |  |  | 49.7 | %
Equity Securities |  |  | 13.0 |  |  |  | 12.3 |  |  |  | 49.6 |  |  |  | 48.3 |
Other |  |  | 1.2 |  |  |  | 1.0 |  |  |  | 1.2 |  |  |  | 2.0 |
|  |  | 100.0 | % |  |  | 100.0 | % |  |  | 100.0 | % |  |  | 100.0 | %
Target Asset Allocation and Index for Each Asset Category | The target asset allocation and the index for each asset category for the U.S. Plan, per the investment policy, is as follows:
Asset Category: |  | Policy Index: |  | Target Allocation
Passive and Active Fixed Income |  | Barclays Capital Long Government Credit Index |  | 85%
Equity (Large cap) |  | S&P 500 Stock Index |  | 10
International Equity |  | MSCI EAFE Index (Net Dividends) |  | 5
Changes in Fair Value of Pension Assets | The fair value of pension plan assets by asset category and by level at December 31, 2012 and December 31, 2011 were as follows:
|  | December 31, 2012 |
|  | Level 1 |  |  | Level 2 |  |  | Level 3 |  |  | Total |
|  |  |  |  | (in thousands) |
Fixed income securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate debt securities |  | $ | — |  |  | $ | 157,263 |  |  | $ | — |  |  | $ | 157,263 |
U.S. government securities |  |  | 23,712 |  |  |  | 58,962 |  |  |  | — |  |  |  | 82,674 |
U.K. government securities |  |  | — |  |  |  | 8,593 |  |  |  | — |  |  |  | 8,593 |
Asset backed securities |  |  | — |  |  |  | 2,042 |  |  |  | — |  |  |  | 2,042 |
U.S. equity (large cap) |  |  | — |  |  |  | 23,832 |  |  |  | — |  |  |  | 23,832 |
International equity |  |  | — |  |  |  | 23,990 |  |  |  | — |  |  |  | 23,990 |
Guarantee annuity contract |  |  | — |  |  |  | 3,108 |  |  |  | — |  |  |  | 3,108 |
Other |  |  | — |  |  |  | 839 |  |  |  | — |  |  |  | 839 |
Cash and cash equivalents |  |  | — |  |  |  | 558 |  |  |  | — |  |  |  | 558 |
Total |  | $ | 23,712 |  |  | $ | 279,187 |  |  | $ | — |  |  | $ | 302,899 |
|  | December 31, 2011 |
|  | Level 1 |  |  | Level 2 |  |  | Level 3 |  |  | Total |
|  | (in thousands) |
Fixed income securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate debt securities |  | $ | — |  |  | $ | 172,401 |  |  | $ | — |  |  | $ | 172,401 |
U.S. government securities |  |  | 5,136 |  |  |  | 96,891 |  |  |  | — |  |  |  | 102,027 |
U.K. government securities |  |  | — |  |  |  | 7,553 |  |  |  | — |  |  |  | 7,553 |
Asset backed securities |  |  | — |  |  |  | 4,604 |  |  |  | — |  |  |  | 4,604 |
U.S. equity (large cap) |  |  | — |  |  |  | 27,725 |  |  |  | — |  |  |  | 27,725 |
International equity |  |  | — |  |  |  | 21,285 |  |  |  | — |  |  |  | 21,285 |
Guarantee annuity contract |  |  | — |  |  |  | 2,863 |  |  |  | — |  |  |  | 2,863 |
Other |  |  | — |  |  |  | 711 |  |  |  | — |  |  |  | 711 |
Cash and cash equivalents |  |  | — |  |  |  | 411 |  |  |  | — |  |  |  | 411 |
Total |  | $ | 5,136 |  |  | $ | 334,444 |  |  | $ | — |  |  | $ | 339,580 |
Expected Future Benefit Payments | Future benefit payments are expected to be paid as follows:
|  | United States |  |  | Foreign |
|  | (in thousands) |
2013 |  | $ | 14,398 |  |  | $ | 2,109 |
2014 |  |  | 15,283 |  |  |  | 1,499 |
2015 |  |  | 16,248 |  |  |  | 1,397 |
2016 |  |  | 17,368 |  |  |  | 2,070 |
2017 |  |  | 17,868 |  |  |  | 2,206 |
2018-2022 |  |  | 97,607 |  |  |  | 10,395 |
Post-Retirement Benefit Plans |
Defined Benefit Pension and Postretirement Benefit Plan Assets and Obligations | Teradyne uses a December 31 measurement date for its plan. The December 31 balances of the postretirement assets and obligations are shown below:
|  | 2012 |  |  | 2011 |
|  | (in thousands) |
Assets and Obligations |  |  |  |  |  |  |  |
Change in benefit obligation: |  |  |  |  |  |  |  |
Projected benefit obligation: |  |  |  |  |  |  |  |
Beginning of year |  | $ | 12,793 |  |  | $ | 12,896 |
Service cost |  |  | 67 |  |  |  | 59 |
Interest cost |  |  | 437 |  |  |  | 539 |
Actuarial loss |  |  | 82 |  |  |  | 981 |
Benefits paid |  |  | (1,472 | ) |  |  | (1,682 | )
Plan amendment |  |  | — |  |  |  | — |
End of year |  |  | 11,907 |  |  |  | 12,793 |
Change in plan assets: |  |  |  |  |  |  |  |
Fair value of plan assets: |  |  |  |  |  |  |  |
Beginning of year |  |  | — |  |  |  | — |
Company contributions |  |  | 1,472 |  |  |  | 1,682 |
Benefits paid |  |  | (1,472 | ) |  |  | (1,682 | )
End of year |  |  | — |  |  |  | — |
Funded status |  | $ | (11,907 | ) |  | $ | (12,793 | )
Amounts Recorded within Statement of Financial Position | The following table provides amounts recorded within the account line items of financial position as of December 31:
|  | 2012 |  |  | 2011 |
|  | (in thousands) |
Accrued employees’ compensation and withholdings |  | $ | (1,322 | ) |  | $ | (1,484 | )
Retirement plans liability |  |  | (10,585 | ) |  |  | (11,309 | )
Funded status |  | $ | (11,907 | ) |  | $ | (12,793 | )
Amounts Recognized in Accumulated Other Comprehensive Loss | The following table provides amounts recognized in accumulated other comprehensive loss (income) as of December 31:
|  | 2012 |  |  | 2011 |
|  | (in thousands) |
Prior service credit |  | $ | (3,427 | ) |  | $ | (4,025 | )
Total recognized in other comprehensive (income) loss before tax |  |  | (3,427 | ) |  |  | (4,025 | )
Deferred taxes |  |  | (445 | ) |  |  | (227 | )
Total recognized in other comprehensive income, net of tax |  | $ | (3,872 | ) |  | $ | (4,252 | )
Net Periodic Pension Costs | For the years ended December 31, 2012, 2011 and 2010, Teradyne’s net periodic postretirement benefit (income) cost was comprised of the following:
|  | 2012 |  |  | 2011 |  |  | 2010 |
|  | (in thousands) |
Components of Net Periodic Postretirement Benefit (Income) Cost: |  |  |  |  |  |  |  |  |  |  |  |
Service cost |  | $ | 67 |  |  | $ | 59 |  |  | $ | 57 |
Interest cost |  |  | 437 |  |  |  | 539 |  |  |  | 668 |
Amortization of prior service cost |  |  | (599 | ) |  |  | (598 | ) |  |  | (416 | )
Net actuarial loss (gain) |  |  | 83 |  |  |  | 981 |  |  |  | (882 | )
Total net periodic postretirement (income) cost |  |  | (12 | ) |  |  | 981 |  |  |  | (573 | )
Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income: |  |  |  |  |  |  |  |  |  |  |  |
Net prior service credit arising during period |  |  | — |  |  |  | — |  |  |  | (3,279 | )
Reversal of amortization items: |  |  |  |  |  |  |  |  |  |  |  |
Prior service credit |  |  | 599 |  |  |  | 598 |  |  |  | 416 |
Total recognized in other comprehensive income |  |  | 599 |  |  |  | 598 |  |  |  | (2,863 | )
Total recognized in net periodic postretirement benefit cost and other comprehensive income |  | $ | 587 |  |  | $ | 1,579 |  |  | $ | (3,436 | )
Weighted Average Assumptions to Determine Net Periodic Pension Cost | Weighted Average Assumptions to Determine Net Periodic Postretirement Benefit Cost as of January 1
|  | 2012 |  |  | 2011 |  |  | 2010 |
Discount rate |  |  | 3.7 | % |  |  | 4.5 | % |  |  | 5.1 | %
Initial Health Care Cost Trend Rate |  |  | 9.0 |  |  |  | 8.5 |  |  |  | 8.5 |
Ultimate Health Care Cost Trend Rate |  |  | 5.0 |  |  |  | 5.0 |  |  |  | 5.0 |
Year in which Ultimate Health Care Cost Trend Rate is reached |  |  | 2018 |  |  |  | 2018 |  |  |  | 2018 |
Weighted Average Assumptions to Determine Pension Obligations | Weighted Average Assumptions to Determine Postretirement Benefit Obligation as of December 31
|  | 2012 |  |  | 2011 |  |  | 2010 |
Discount rate |  |  | 3.1 | % |  |  | 3.7 | % |  |  | 4.5 | %
Initial Medical Trend |  |  | 8.5 |  |  |  | 9.0 |  |  |  | 8.5 |
Ultimate Health Care Trend |  |  | 5.0 |  |  |  | 5.0 |  |  |  | 5.0 |
Medical cost trend rate decrease to ultimate rate in year |  |  | 2018 |  |  |  | 2018 |  |  |  | 2018 |
Expected Future Benefit Payments | Future benefit payments are expected to be paid as follows:
|  | Benefits Payments |
|  | (in thousands) |
2013 |  | $ | 1,322 |
2014 |  |  | 1,202 |
2015 |  |  | 1,111 |
2016 |  |  | 1,106 |
2017 |  |  | 966 |
2018-2022 |  |  | 3,943 |
One Percentage Point Change in Assumed Health Care Cost Trend Rates for Year | A one percentage point change in the assumed health care cost trend rates for the year ended December 31, 2012, would have the following effects:
|  | 1 Percentage Point Increase |  |  | 1 Percentage Point Decrease |
|  | (in thousands) |
Effect on total service and interest cost components |  | $ | 16 |  |  | $ | (15 | )
Effect on postretirement benefit obligations |  |  | 322 |  |  |  | (302 | )

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