XML 59 R47.htm IDEA: XBRL DOCUMENT
v3.24.0.1

Retirement Plans (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2023
Defined Benefit Plan Disclosure [Line Items] |
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:
|  | 2023 |  |  | 2022 |
|  | United States |  |  | Foreign |  |  | United States |  |  | Foreign |
|  | (in thousands) |
Assets and Obligations |  |  |  |  |  |  |  |  |  |  |  |
Change in benefit obligation: |  |  |  |  |  |  |  |  |  |  |  |
Projected benefit obligation: |  |  |  |  |  |  |  |  |  |  |  |
Beginning of year |  | $ | 143,814 |  |  | $ | 29,935 |  |  | $ | 192,472 |  |  | $ | 45,774 |
Service cost |  |  | 1,063 |  |  |  | 446 |  |  |  | 1,588 |  |  |  | 784 |
Interest cost |  |  | 6,888 |  |  |  | 1,057 |  |  |  | 4,886 |  |  |  | 482 |
Actuarial loss (gain) |  |  | 3,229 |  |  |  | 2,738 |  |  |  | (45,932 | ) |  |  | (13,181 | )
Benefits paid |  |  | (10,807 | ) |  |  | (947 | ) |  |  | (9,200 | ) |  |  | (863 | )
Liability (gain) loss due to settlement |  |  | — |  |  |  | (254 | ) |  |  | — |  |  |  | — |
Non-U.S. currency movement |  |  | — |  |  |  | 1,009 |  |  |  | — |  |  |  | (3,061 | )
End of year |  |  | 144,187 |  |  |  | 33,984 |  |  |  | 143,814 |  |  |  | 29,935 |
Change in plan assets: |  |  |  |  |  |  |  |  |  |  |  |
Fair value of plan assets: |  |  |  |  |  |  |  |  |  |  |  |
Beginning of year |  |  | 111,760 |  |  |  | 2,087 |  |  |  | 149,578 |  |  |  | 2,017 |
Actual return on plan assets |  |  | 8,613 |  |  |  | 43 |  |  |  | (31,835 | ) |  |  | 153 |
Company contributions |  |  | 3,051 |  |  |  | 1,028 |  |  |  | 3,217 |  |  |  | 949 |
Benefits paid |  |  | (10,807 | ) |  |  | (947 | ) |  |  | (9,200 | ) |  |  | (863 | )
Settlements gain |  |  | — |  |  |  | (254 | ) |  |  | — |  |  |  | — |
Non-U.S. currency movement |  |  | — |  |  |  | (28 | ) |  |  | — |  |  |  | (169 | )
End of year |  |  | 112,617 |  |  |  | 1,929 |  |  |  | 111,760 |  |  |  | 2,087 |
Funded status |  | $ | (31,570 | ) |  | $ | (32,055 | ) |  | $ | (32,054 | ) |  | $ | (27,848 | )
Amounts Recorded within Statement of Financial Position | The following table provides amounts recorded within the account line items of the statements of financial position as of December 31:
|  | 2023 |  |  | 2022 |
|  | United States |  |  | Foreign |  |  | United States |  |  | Foreign |
|  | (in thousands) |
Retirement plans assets |  | $ | 11,504 |  |  | $ | — |  |  | $ | 11,761 |  |  | $ | — |
Accrued employees’ compensation and withholdings |  |  | (3,110 | ) |  |  | (1,255 | ) |  |  | (3,055 | ) |  |  | (1,191 | )
Retirement plans liabilities |  |  | (39,964 | ) |  |  | (30,800 | ) |  |  | (40,760 | ) |  |  | (26,657 | )
Funded status |  | $ | (31,570 | ) |  | $ | (32,055 | ) |  | $ | (32,054 | ) |  | $ | (27,848 | )
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:
|  | 2023 |  |  | 2022 |
|  | United States |  |  | Foreign |  |  | United States |  |  | Foreign |
|  | (in millions) |
Projected benefit obligation |  | $ | 43.1 |  |  | $ | 34.0 |  |  | $ | 43.8 |  |  | $ | 29.9 |
Accumulated benefit obligation |  |  | 42.6 |  |  |  | 32.5 |  |  |  | 42.3 |  |  |  | 28.6 |
Fair value of plan assets |  |  | — |  |  |  | 1.9 |  |  |  | — |  |  |  | 2.1 |
Net Periodic Pension and Postretirement Benefit Cost (Income) | For the years ended December 31, 2023, 2022, and 2021, Teradyne’s net periodic pension cost (income) was comprised of the following:
|  | 2023 |  |  | 2022 |  |  | 2021 |
|  | United States |  |  | Foreign |  |  | United States |  |  | Foreign |  |  | United States |  |  | Foreign |
|  | (in thousands) |
Components of Net Periodic Pension Cost (Income): |  |  |  |  |  |  |  |  |  |  |  |  |
Service cost |  | $ | 1,063 |  |  | $ | 446 |  |  | $ | 1,588 |  |  | $ | 784 |  |  | $ | 1,784 |  |  | $ | 941 |
Interest cost |  |  | 6,888 |  |  |  | 1,057 |  |  |  | 4,886 |  |  |  | 482 |  |  |  | 4,427 |  |  |  | 337 |
Expected return on plan assets |  |  | (5,194 | ) |  |  | (45 | ) |  |  | (2,927 | ) |  |  | (75 | ) |  |  | (3,858 | ) |  |  | (67 | )
Net actuarial loss (gain) |  |  | 18 |  |  |  | 2,735 |  |  |  | (11,170 | ) |  |  | (13,259 | ) |  |  | 643 |  |  |  | (2,223 | )
Settlement (gain) loss |  |  | (209 | ) |  |  | 5 |  |  |  | — |  |  |  | — |  |  |  | (204 | ) |  |  | — |
Total net periodic pension cost (income) |  | $ | 2,566 |  |  | $ | 4,198 |  |  | $ | (7,623 | ) |  | $ | (12,068 | ) |  | $ | 2,792 |  |  | $ | (1,012 | )
Weighted Average Assumptions to Determine Net Periodic Cost and Benefit Obligation | Weighted Average Assumptions to Determine Net Periodic Pension Cost at January 1:
|  | 2023 |  |  | 2022 |  |  | 2021 |
|  | United States |  |  | Foreign |  |  | United States |  |  | Foreign |  |  | United States |  |  | Foreign |
Discount rate |  |  | 3.5 | % |  |  | 3.5 | % |  |  | 2.5 | % |  |  | 1.1 | % |  |  | 2.2 | % |  |  | 0.7 | %
Expected return on plan assets |  |  | 4.8 |  |  |  | 1.8 |  |  |  | 2.0 |  |  |  | 4.0 |  |  |  | 2.4 |  |  |  | 3.5 |
Salary progression rate |  |  | 2.4 |  |  |  | 2.1 |  |  |  | 2.4 |  |  |  | 2.2 |  |  |  | 2.4 |  |  |  | 2.3 |
Weighted Average Assumptions to Determine Pension Obligations at December 31:
|  | 2023 |  |  | 2022 |
|  | United States |  |  | Foreign |  |  | United States |  |  | Foreign |
Discount rate |  |  | 4.7 | % |  |  | 3.0 | % |  |  | 4.9 | % |  |  | 3.5 | %
Salary progression rate |  |  | 2.5 |  |  |  | 2.4 |  |  |  | 2.5 |  |  |  | 2.1 |
Weighted Average Pension Asset Allocations by Category | The following table provides weighted average pension asset allocation by asset category at December 31, 2023 and 2022:
|  | 2023 |  |  | 2022 |
|  | United States |  |  | Foreign |  |  | United States |  |  | Foreign |
Fixed income securities |  |  | 94.0 | % |  |  | — | % |  |  | 94.0 | % |  |  | — | %
Equity securities |  |  | 5.0 |  |  |  | — |  |  |  | 5.0 |  |  |  | — |
Other |  |  | 1.0 |  |  |  | 100.0 |  |  |  | 1.0 |  |  |  | 100.0 |
|  |  | 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, are as follows:
Asset Category: |  | Policy Index: |  | Target Allocation |
U.S. corporate fixed income |  | Bloomberg U.S. Corporate A or Better Index, 20+ Year Index |  |  | 43 | %
U.S. corporate fixed income |  | Bloomberg U.S. Corporate A or Better Index, 5- 20 Year Index |  |  | 32 |
U.S. government fixed income |  | Bloomberg U.S. 3 - 10 year Treasury Bond Index |  |  | 14 |
Global equity |  | MSCI World Index |  |  | 5 |
High yield fixed income |  | ICE BofA BB-B U.S. High Yield Constrained Index |  |  | 5 |
Cash |  | ICE BofA 3-Month Treasury Bill Index |  |  | 1 |
Changes in Fair Value of Pension Assets | The fair value of pension plan assets by asset category and by level at December 31, 2023 and December 31, 2022 were as follows:
|  | December 31, 2023 |
|  | United States |  |  | Foreign |
|  | Level 1 |  |  | Level 2 |  |  | Level 3 |  |  | Total |  |  | Level 1 |  |  | Level 2 |  |  | Level 3 |  |  | Total |
|  | (in thousands) |
Fixed income securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate debt securities |  | $ | — |  |  | $ | 89,971 |  |  | $ | — |  |  | $ | 89,971 |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |
U.S. government securities |  |  | — |  |  |  | 15,817 |  |  |  | — |  |  |  | 15,817 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Global equity |  |  | — |  |  |  | 5,691 |  |  |  | — |  |  |  | 5,691 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Other |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 1,929 |  |  |  | — |  |  |  | 1,929 |
Cash and cash equivalents |  |  | 1,138 |  |  |  | — |  |  |  | — |  |  |  | 1,138 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Total |  | $ | 1,138 |  |  | $ | 111,479 |  |  | $ | — |  |  | $ | 112,617 |  |  | $ | — |  |  | $ | 1,929 |  |  | $ | — |  |  | $ | 1,929 |
|  | December 31, 2022 |
|  | United States |  |  | Foreign |
|  | Level 1 |  |  | Level 2 |  |  | Level 3 |  |  | Total |  |  | Level 1 |  |  | Level 2 |  |  | Level 3 |  |  | Total |
|  | (in thousands) |
Fixed income securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate debt securities |  | $ | — |  |  | $ | 89,403 |  |  | $ | — |  |  | $ | 89,403 |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |
U.S. government securities |  |  | — |  |  |  | 15,631 |  |  |  | — |  |  |  | 15,631 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Global equity |  |  | — |  |  |  | 5,579 |  |  |  | — |  |  |  | 5,579 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Other |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 2,087 |  |  |  | — |  |  |  | 2,087 |
Cash and cash equivalents |  |  | 1,147 |  |  |  | — |  |  |  | — |  |  |  | 1,147 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Total |  | $ | 1,147 |  |  | $ | 110,613 |  |  | $ | — |  |  | $ | 111,760 |  |  | $ | — |  |  | $ | 2,087 |  |  | $ | — |  |  | $ | 2,087 |
Expected Future Benefit Payments | Future benefit payments are expected to be paid as follows:
|  | United States |  |  | Foreign |
|  | (in thousands) |
2024 |  | $ | 10,210 |  |  | $ | 1,312 |
2025 |  |  | 9,720 |  |  |  | 1,068 |
2026 |  |  | 9,863 |  |  |  | 1,191 |
2027 |  |  | 10,792 |  |  |  | 1,301 |
2028 |  |  | 10,795 |  |  |  | 1,238 |
2029-2032 |  |  | 51,857 |  |  |  | 8,832 |
Postretirement Benefit Plans |
Defined Benefit Plan Disclosure [Line Items] |
Defined Benefit Pension and Postretirement Benefit Plan Assets and Obligations | The December 31 balances of the postretirement assets and obligations are shown below:
|  | 2023 |  |  | 2022 |
|  | (in thousands) |
Assets and Obligations |  |  |  |  |  |
Change in benefit obligation: |  |  |  |  |  |
Projected benefit obligation: |  |  |  |  |  |
Beginning of year |  | $ | 5,345 |  |  | $ | 7,210 |
Service cost |  |  | 34 |  |  |  | 64 |
Interest cost |  |  | 299 |  |  |  | 177 |
Actuarial loss (gain) |  |  | 155 |  |  |  | (1,155 | )
Benefits paid |  |  | (1,413 | ) |  |  | (950 | )
Special termination benefits |  |  | 2,513 |  |  |  | — |
End of year |  |  | 6,933 |  |  |  | 5,345 |
Change in plan assets: |  |  |  |  |  |
Fair value of plan assets: |  |  |  |  |  |
Beginning of year |  |  | — |  |  |  | — |
Company contributions |  |  | 1,413 |  |  |  | 950 |
Benefits paid |  |  | (1,413 | ) |  |  | (950 | )
End of year |  |  | — |  |  |  | — |
Funded status |  | $ | (6,933 | ) |  | $ | (5,345 | )
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:
|  | 2023 |  |  | 2022 |
|  | (in thousands) |
Accrued employees’ compensation and withholdings |  | $ | (1,508 | ) |  | $ | (853 | )
Retirement plans liabilities |  |  | (5,425 | ) |  |  | (4,492 | )
Funded status |  | $ | (6,933 | ) |  | $ | (5,345 | )
Amounts Recognized in Accumulated Other Comprehensive Income (loss) | The following table provides amounts recognized in accumulated other comprehensive income (loss) as of December 31:
|  | 2023 |  |  | 2022 |
|  | (in thousands) |
Prior service credit, before tax |  | $ | (23 | ) |  | $ | (31 | )
Deferred taxes |  |  | (1,691 | ) |  |  | (1,689 | )
Total recognized in other comprehensive income (loss), net of tax |  | $ | (1,714 | ) |  | $ | (1,720 | )
Net Periodic Pension and Postretirement Benefit Cost (Income) | For the years ended December 31, 2023, 2022, and 2021, Teradyne’s net periodic postretirement benefit cost (income) was comprised of the following:
|  | 2023 |  |  | 2022 |  |  | 2021 |
|  | (in thousands) |
Components of Net Periodic Postretirement Benefit Cost (income): |
Service cost |  | $ | 34 |  |  | $ | 64 |  |  | $ | 64 |
Interest cost |  |  | 299 |  |  |  | 177 |  |  |  | 170 |
Amortization of prior service credit |  |  | (9 | ) |  |  | (9 | ) |  |  | (9 | )
Net actuarial loss (gain) |  |  | 155 |  |  |  | (1,155 | ) |  |  | (433 | )
Special termination benefits |  |  | 2,513 |  |  |  | — |  |  |  | — |
Total net periodic postretirement benefit cost (income) |  |  | 2,992 |  |  |  | (923 | ) |  |  | (208 | )
Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income: |  |  |  |  |  |  |  |  |
Reversal of amortization items: |  |  |  |  |  |  |  |  |
Prior service credit |  |  | 9 |  |  |  | 9 |  |  |  | 9 |
Total recognized in other comprehensive income |  |  | 9 |  |  |  | 9 |  |  |  | 9 |
Total recognized in net periodic postretirement cost (income) and other comprehensive income |  | $ | 3,001 |  |  | $ | (914 | ) |  | $ | (199 | )
Weighted Average Assumptions to Determine Net Periodic Cost and Benefit Obligation | Weighted Average Assumptions to Determine Net Periodic Postretirement Benefit Income as of January 1:
|  | 2023 |  |  | 2022 |  |  | 2021 |
Discount rate |  |  | 5.0 | % |  |  | 2.6 | % |  |  | 2.2 | %
Initial health care cost trend rate |  |  | 7.2 |  |  |  | 7.3 |  |  |  | 7.3 |
Ultimate health care cost trend rate |  |  | 4.5 |  |  |  | 4.5 |  |  |  | 4.5 |
Year in which ultimate health care cost trend rate is reached |  | 2032 |  |  | 2029 |  |  | 2029 |
Weighted Average Assumptions to Determine Postretirement Benefit Obligation as of December 31:
|  | 2023 |  |  | 2022 |  |  | 2021 |
Discount rate |  |  | 4.7 | % |  |  | 5.0 | % |  |  | 2.6 | %
Initial health care trend |  |  | 7.7 |  |  |  | 7.2 |  |  |  | 7.3 |
Ultimate health care trend |  |  | 4.5 |  |  |  | 4.5 |  |  |  | 4.5 |
Medical cost trend rate decrease to ultimate rate in year |  |  | 2033 |  |  |  | 2032 |  |  |  | 2029 |
Expected Future Benefit Payments | Future benefit payments are expected to be paid as follows:
|  | Benefit Payments |
|  | (in thousands) |
2024 |  | $ | 1,508 |
2025 |  |  | 924 |
2026 |  |  | 701 |
2027 |  |  | 637 |
2028 |  |  | 568 |
2029-2032 |  |  | 2,004 |

X
- Definition Schedule Of Weighted Average Pension Asset Allocations By Category [Table Text Block]. + References No definition available. + Details
Name: | ter_ScheduleOfWeightedAveragePensionAssetAllocationsByCategoryTableTextBlock
Namespace Prefix: | ter_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- 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
Name: | us-gaap_DefinedBenefitPlanDisclosureLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of benefit obligation and plan assets of defined benefit plan with accumulated benefit obligation in excess of plan assets. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 17 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480482/715-20-55-17 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-3 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-3 + Details
Name: | us-gaap_ScheduleOfAccumulatedBenefitObligationsInExcessOfFairValueOfPlanAssetsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the major categories of plan assets of pension plans and/or other employee benefit plans. This information may include, but is not limited to, the target allocation of plan assets, the fair value of each major category of plan assets, and the level within the fair value hierarchy in which the fair value measurements fall. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 715 -SubTopic 20 -Subparagraph (d)(5) -Name Accounting Standards Codification -Paragraph 1 -Section 50 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 + Details
Name: | us-gaap_ScheduleOfAllocationOfPlanAssetsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the amounts related to pension plans and/or other employee benefit plans in accumulated other comprehensive income (loss) expected to be recognized as components of net periodic benefit cost over the next fiscal year, including the net gain (loss), net prior service cost or credit, and net transition asset or obligation. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 + Details
Name: | us-gaap_ScheduleOfAmountsInAccumulatedOtherComprehensiveIncomeLossToBeRecognizedOverNextFiscalYearTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the amounts that are recognized in the balance sheet (or statement of financial position) for pension plans and/or other employee benefit plans, showing separately the assets and current and noncurrent liabilities (if applicable) recognized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 + Details
Name: | us-gaap_ScheduleOfAmountsRecognizedInBalanceSheetTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of assumption used to determine benefit obligation and net periodic benefit cost of defined benefit plan. Includes, but is not limited to, discount rate, rate of compensation increase, expected long-term rate of return on plan assets and interest crediting rate. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (k) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 + Details
Name: | us-gaap_ScheduleOfAssumptionsUsedTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the change in the benefit obligation of pension plans and/or other employee benefit plans from the beginning to the end of the period, showing separately, if applicable, the effects of the following: service cost, interest cost, contributions by plan participants, actuarial gains and losses, foreign currency exchange rate changes, benefits paid, plan amendments, business combinations, divestitures, curtailments, settlements, and special and contractual termination benefits. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 715 -SubTopic 20 -Subparagraph (a) -Name Accounting Standards Codification -Paragraph 1 -Section 50 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 + Details
Name: | us-gaap_ScheduleOfChangesInProjectedBenefitObligationsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the effect of fair value measurements using significant unobservable inputs (Level 3) on changes in plan assets of pension plans and/or other employee benefit plans for the period. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d)(iv)(02) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 + Details
Name: | us-gaap_ScheduleOfEffectOfSignificantUnobservableInputsChangesInPlanAssetsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of benefits expected to be paid by pension plans and/or other employee benefit plans in each of the next five fiscal years and in the aggregate for the five fiscal years thereafter. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 715 -SubTopic 20 -Subparagraph (f) -Name Accounting Standards Codification -Paragraph 1 -Section 50 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 + Details
Name: | us-gaap_ScheduleOfExpectedBenefitPaymentsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 715 -SubTopic 20 -Subparagraph (h) -Name Accounting Standards Codification -Paragraph 1 -Section 50 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 + Details
Name: | us-gaap_ScheduleOfNetBenefitCostsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_RetirementPlanTypeAxis=us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |