XML 55 R35.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Employee Benefit Plans (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2017
Employee Benefit Plans |
Schedule of the fair value of plan assets by asset class | Foreign Pension Plans
| Actual Allocations |  | Mid-point of Target Allocation Range
| 2017 |  | 2016 |  | 2017
Global equity common trust funds | 17 | % |  | 16 | % |  | 14 | %
Global equities | — | % |  | 8 | % |  | — | %
Fixed income common trust funds | 46 | % |  | 30 | % |  | 39 | %
Commingled global fund allocation | 34 | % |  | 20 | % |  | 36 | %
Non-U.S. Government securities | — | % |  | 24 | % |  | 7 | %
Short-term investments (1) | 3 | % |  | 2 | % |  | 4 | %
Total | 100 | % |  | 100 | % |  | 100 | %
___________________________________________________________________
(1) | Short-term investments are generally invested in actively managed common trust funds or interest-bearing accounts.
Actual asset allocation percentages of each class of our domestic and foreign pension plan assets as of December 31, 2017 and 2016, along with the targeted asset investment allocation percentages, each of which is based on the midpoint of an allocation range, were as follows: Domestic Pension Plans
| Actual Allocations |  | Mid-point of Target Allocation Range
| 2017 |  | 2016 |  | 2017
Fixed income common trust funds | 70 | % |  | 44 | % |  | 65 | %
Commingled global fund allocation | 12 | % |  | 19 | % |  | 18 | %
Corporate bonds | 1 | % |  | 11 | % |  | — | %
Global equity common trust funds | 7 | % |  | 12 | % |  | 5 | %
U.S. Government securities | 9 | % |  | 12 | % |  | 10 | %
Short-term investments (1) | 1 | % |  | 2 | % |  | 2 | %
Total | 100 | % |  | 100 | % |  | 100 | %
___________________________________________________________________
(1) | Short-term investments are generally invested in actively managed common trust funds or interest-bearing accounts.
Schedule of net periodic benefit (income) expense | Net periodic pension benefit expense (income) for our domestic and foreign pension plans included the following components: Domestic Pension Plans
| Year ended December 31,
| 2017 |  | 2016 |  | 2015
Service cost | $ | 0.3 |  |  | $ | 0.4 |  |  | $ | 2.5 |
Interest cost | 13.4 |  |  | 13.9 |  |  | 16.5 |
Expected return on plan assets | (10.1 | ) |  | (12.9 | ) |  | (18.0 | )
Amortization of unrecognized prior service credits | (0.1 | ) |  | (0.2 | ) |  | (0.1 | )
Recognized net actuarial losses (1) | 3.9 |  |  | 3.2 |  |  | 18.9 |
Total net periodic pension benefit expense | $ | 7.4 |  |  | $ | 4.4 |  |  | $ | 19.8 |
___________________________________________________________________
(1) | Consists primarily of our reported actuarial (gains) losses, the difference between actual and expected returns on plan assets, settlement gains (losses), and curtailment gains. The actuarial losses for 2016 included $1.8 related to the lump-sum payment actions that took place during the second quarter of the year. The actuarial losses for 2015 included a charge of $11.4 and a curtailment gain of $5.1 related to the freeze of all benefits for non-union participants of the U.S. Plan and the SIARP during the third quarter of the year.
Foreign Pension Plans
| Year ended December 31,
| 2017 |  | 2016 |  | 2015
Service cost | $ | — |  |  | $ | — |  |  | $ | 1.3 |
Interest cost | 4.9 |  |  | 5.6 |  |  | 7.7 |
Expected return on plan assets | (6.4 | ) |  | (6.6 | ) |  | (9.7 | )
Recognized net actuarial losses (1) | 3.1 |  |  | 8.2 |  |  | 3.8 |
Total net periodic pension benefit expense | 1.6 |  |  | 7.2 |  |  | 3.1 |
Less: Net periodic pension expense of discontinued operations | — |  |  | (0.2 | ) |  | (2.2 | )
Net periodic pension benefit expense of continuing operations | $ | 1.6 |  |  | $ | 7.0 |  |  | $ | 0.9 |
___________________________________________________________________
(1) | Consists of our reported actuarial losses and the difference between actual and expected returns on plan assets.
Pension plans |
Employee Benefit Plans |
Schedule of the fair value of plan assets by asset class | The fair values of pension plan assets at December 31, 2017, by asset class, were as follows:
| Total |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  | Significant Observable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3)
Asset class: |  |  |  |  |  |  |
Debt securities: |  |  |  |  |  |  |
Fixed income common trust funds (1) (2) | $ | 270.2 |  |  | $ | — |  |  | $ | 270.2 |  |  | $ | — |
Corporate bonds | 1.6 |  |  | — |  |  | 1.6 |  |  | — |
Non-U.S. Government securities | — |  |  | — |  |  | — |  |  | — |
U.S. Government securities | 25.2 |  |  | — |  |  | 25.2 |  |  | — |
Equity securities: |  |  |  |  |  |  |
Global equity common trust funds (1) (3) | 50.6 |  |  | — |  |  | 50.6 |  |  | — |
Global equities: | — |  |  | — |  |  | — |  |  | — |
Alternative investments: |  |  |  |  |  |  |
Commingled global fund allocations (1) (4) | 95.1 |  |  | — |  |  | 95.1 |  |  | — |
Other: |  |  |  |  |  |  |
Short-term investments (5) | 9.4 |  |  | 9.4 |  |  | — |  |  | — |
Other | 1.0 |  |  | — |  |  | — |  |  | 1.0 |
Total | $ | 453.1 |  |  | $ | 9.4 |  |  | $ | 442.7 |  |  | $ | 1.0 |
The fair values of pension plan assets at December 31, 2016, by asset class, were as follows:
| Total |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  | Significant Observable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3)
Asset class: |  |  |  |  |  |  |
Debt securities: |  |  |  |  |  |  |
Fixed income common trust funds (1) (2) | $ | 163.1 |  |  | $ | — |  |  | $ | 163.1 |  |  | $ | — |
Corporate bonds | 29.1 |  |  | — |  |  | 29.1 |  |  | — |
Non-U.S. Government securities | 39.0 |  |  | — |  |  | 39.0 |  |  | — |
U.S. Government securities | 31.1 |  |  | — |  |  | 31.1 |  |  | — |
Equity securities: |  |  |  |  |  |  |
Global equity common trust funds (1) (3) | 57.6 |  |  | — |  |  | 57.6 |  |  | — |
Global equities: | 13.2 |  |  | — |  |  | 13.2 |  |  | — |
Alternative investments: |  |  |  |  |  |  |  |  |
Commingled global fund allocations (1) (4) | 80.6 |  |  | — |  |  | 80.6 |  |  | — |
Other: |  |  |  |  |  |  |  |  |
Short-term investments (5) | 10.5 |  |  | 10.5 |  |  | — |  |  | — |
Other | 1.0 |  |  | — |  |  | — |  |  | 1.0 |
Total | $ | 425.2 |  |  | $ | 10.5 |  |  | $ | 413.7 |  |  | $ | 1.0 |
(1) | Common/commingled trust funds are similar to mutual funds, with a daily net asset value per share measured by the fund sponsor and used as the basis for current transactions. These investments, however, are not registered with the U.S. Securities and Exchange Commission and participation is not open to the public. The funds are valued at the net asset value per share multiplied by the number of shares held as of the measurement date.
(2) | This class represents investments in actively managed common trust funds that invest in a variety of fixed income investments, which may include corporate bonds, both U.S. and non-U.S. municipal securities, interest rate swaps, options and futures.
(3) | This class represents investments in actively managed common trust funds that invest primarily in equity securities, which may include common stocks, options and futures.
(4) | This class represents investments in actively managed common trust funds with investments in both equity and debt securities. The investments may include common stock, corporate bonds, U.S. and non-U.S. municipal securities, interest rate swaps, options and futures.
(5) | Short-term investments are valued at $1.00/unit, which approximates fair value. Amounts are generally invested in actively managed common trust funds or interest-bearing accounts.
Schedule of changes in the fair value of Level 3 assets | The following table summarizes changes in the fair value of Level 3 assets for the years ended December 31, 2017 and 2016:
| Global Equity Common Trust Funds |  | Commingled Global Fund Allocations |  | Fixed Income Common Trust Funds |  | Other |  | Total
Balance at December 31, 2015 | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 1.0 |  |  | $ | 1.0 |
Transfer from Level 3 to Level 2 assets | — |  |  | — |  |  | — |  |  | — |  |  | — |
Sales | — |  |  | — |  |  | — |  |  | — |  |  | — |
Balance at December 31, 2016 | — |  |  | — |  |  | — |  |  | 1.0 |  |  | 1.0 |
Transfer from Level 3 to Level 2 assets | — |  |  | — |  |  | — |  |  | — |  |  | — |
Sales | — |  |  | — |  |  | — |  |  | — |  |  | — |
Balance at December 31, 2017 | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 1.0 |  |  | $ | 1.0 |
Schedule of estimated minimum benefit payments | Following is a summary, as of December 31, 2017, of the estimated future benefit payments for our pension plans in each of the next five fiscal years and in the aggregate for five fiscal years thereafter. Benefit payments are paid from plan assets or directly by us for our non-funded plans. The expected benefit payments are estimated based on the same assumptions used at December 31, 2017 to measure our obligations and include benefits attributable to estimated future employee service.
Estimated future benefit payments: (Domestic and foreign pension plans)
| Domestic Pension Benefits |  | Foreign Pension Benefits
2018 | $ | 24.8 |  |  | $ | 4.7 |
2019 | 22.6 |  |  | 5.5 |
2020 | 23.1 |  |  | 5.3 |
2021 | 23.3 |  |  | 5.5 |
2022 | 23.9 |  |  | 6.4 |
Subsequent five years | 115.1 |  |  | 36.1 |
Schedule of funded status of the pension plans and amounts recognized in consolidated balance sheets | The following tables show the domestic and foreign pension plans’ funded status and amounts recognized in our consolidated balance sheets:
| Domestic Pension Plans |  | Foreign Pension Plans
| 2017 |  | 2016 |  | 2017 |  | 2016
Change in projected benefit obligation: |  |  |  |  |  |  |
Projected benefit obligation — beginning of year | $ | 348.1 |  |  | $ | 371.1 |  |  | $ | 157.6 |  |  | $ | 155.7 |
Divestiture of Balcke Dürr (1) | — |  |  | — |  |  | — |  |  | (6.7 | )
Service cost | 0.3 |  |  | 0.4 |  |  | — |  |  | — |
Interest cost | 13.4 |  |  | 13.9 |  |  | 4.9 |  |  | 5.6 |
Actuarial losses | 16.5 |  |  | 9.5 |  |  | 6.7 |  |  | 27.4 |
Settlements (2) | — |  |  | (36.4 | ) |  | — |  |  | — |
Curtailment losses | 0.9 |  |  | — |  |  | — |  |  | — |
Benefits paid | (22.1 | ) |  | (10.4 | ) |  | (8.1 | ) |  | (6.4 | )
Foreign exchange and other | — |  |  | — |  |  | 14.1 |  |  | (18.0 | )
Projected benefit obligation — end of year | $ | 357.1 |  |  | $ | 348.1 |  |  | $ | 175.2 |  |  | $ | 157.6 |
___________________________________________________________________
(1) | Represents the transfer of Balcke Dürr’s pension liabilities as a result of the sale.
(2) | Amount in 2016 includes settlement payments of $27.9 in connection with lump-sum payment actions for the U.S. Plan and the SIARP.
| Domestic Pension Plans |  | Foreign Pension Plans
| 2017 |  | 2016 |  | 2017 |  | 2016
Change in plan assets: |  |  |  |  |  |  |
Fair value of plan assets — beginning of year | $ | 261.9 |  |  | $ | 279.2 |  |  | $ | 163.3 |  |  | $ | 163.5 |
Actual return on plan assets | 23.6 |  |  | 19.5 |  |  | 10.6 |  |  | 25.6 |
Contributions (employer and employee) | 6.3 |  |  | 10.0 |  |  | 3.4 |  |  | 0.5 |
Settlements | — |  |  | (36.4 | ) |  | — |  |  | — |
Benefits paid | (22.1 | ) |  | (10.4 | ) |  | (8.7 | ) |  | (6.1 | )
Foreign exchange and other | — |  |  | — |  |  | 14.8 |  |  | (20.2 | )
Fair value of plan assets — end of year | $ | 269.7 |  |  | $ | 261.9 |  |  | $ | 183.4 |  |  | $ | 163.3 |
Funded status at year-end | (87.4 | ) |  | (86.2 | ) |  | 8.2 |  |  | 5.7 |
Amounts recognized in the consolidated balance sheets consist of: |  |  |  |  |  |  |
Other assets | $ | — |  |  | $ | — |  |  | $ | 8.4 |  |  | $ | 6.3 |
Accrued expenses | (5.9 | ) |  | (5.9 | ) |  | — |  |  | — |
Other long-term liabilities | (81.5 | ) |  | (80.3 | ) |  | (0.2 | ) |  | (0.6 | )
Net amount recognized | $ | (87.4 | ) |  | $ | (86.2 | ) |  | $ | 8.2 |  |  | $ | 5.7 |
Amount recognized in accumulated other comprehensive income (pre-tax) consists of — net prior service credits | $ | (0.6 | ) |  | $ | (0.7 | ) |  | $ | — |  |  | $ | — |
Schedule of accumulated benefit obligations in excess of the fair value of plan assets | The following is information about our pension plans that had accumulated benefit obligations in excess of the fair value of their plan assets at December 31, 2017 and 2016:
| Domestic Pension Plans |  | Foreign Pension Plans
| 2017 |  | 2016 |  | 2017 |  | 2016
Projected benefit obligation | $ | 357.1 |  |  | $ | 348.1 |  |  | $ | 0.2 |  |  | $ | 43.8 |
Accumulated benefit obligation | 357.1 |  |  | 347.9 |  |  | 0.2 |  |  | 43.8 |
Fair value of plan assets | 269.7 |  |  | 261.9 |  |  | — |  |  | 43.2 |
Schedule of actuarial assumptions used in accounting for pension plans | Actuarial assumptions used in accounting for our domestic and foreign pension plans were as follows:
| Year ended December 31,
| 2017 |  | 2016 |  | 2015
Domestic Pension Plans |  |  |  |  |
Weighted-average actuarial assumptions used in determining net periodic pension expense: |  |  |  |  |
Discount rate | 3.98 | % |  | 4.06 | % |  | 4.09 | %
Rate of increase in compensation levels | 3.75 | % |  | 3.75 | % |  | 3.75 | %
Expected long-term rate of return on assets | 4.00 | % |  | 5.00 | % |  | 5.75 | %
Weighted-average actuarial assumptions used in determining year-end benefit obligations: |  |  |  |  |
Discount rate | 3.57 | % |  | 3.98 | % |  | 4.24 | %
Rate of increase in compensation levels | 3.75 | % |  | 3.75 | % |  | 3.75 | %
Foreign Pension Plans |  |  |  |  |
Weighted-average actuarial assumptions used in determining net periodic pension expense: |  |  |  |  |
Discount rate | 2.97 | % |  | 3.82 | % |  | 3.68 | %
Rate of increase in compensation levels | N/A |  |  | N/A |  |  | 4.00 | %
Expected long-term rate of return on assets | 4.09 | % |  | 4.57 | % |  | 5.81 | %
Weighted-average actuarial assumptions used in determining year-end benefit obligations: |  |  |  |  |
Discount rate | 2.76 | % |  | 2.97 | % |  | 3.82 | %
Rate of increase in compensation levels | N/A |  |  | N/A |  |  | 4.00 | %
Postretirement Plans |
Employee Benefit Plans |
Schedule of funded status of the pension plans and amounts recognized in consolidated balance sheets | The following tables show the postretirement plans’ funded status and amounts recognized in our consolidated balance sheets:
| Postretirement Benefits
| 2017 |  | 2016
Change in accumulated postretirement benefit obligation: |  |  |
Accumulated postretirement benefit obligation — beginning of year | $ | 115.3 |  |  | $ | 120.8 |
Interest cost | 3.5 |  |  | 4.2 |
Actuarial (gains) losses | (5.4 | ) |  | 0.6 |
Benefits paid | (9.0 | ) |  | (10.3 | )
Plan amendment | (26.8 | ) |  | — |
Accumulated postretirement benefit obligation — end of year | $ | 77.6 |  |  | $ | 115.3 |
Funded status at year-end | $ | (77.6 | ) |  | $ | (115.3 | )
Amounts recognized in the consolidated balance sheets consist of: |  |  |
Accrued expenses | $ | (8.7 | ) |  | $ | (11.7 | )
Other long-term liabilities | (68.9 | ) |  | (103.6 | )
Net amount recognized | $ | (77.6 | ) |  | $ | (115.3 | )
Amount recognized in accumulated other comprehensive income (pre-tax) consists of — net prior service credits | $ | (31.0 | ) |  | $ | (5.9 | )
Schedule of net periodic benefit (income) expense | The net periodic postretirement benefit expense (income) included the following components:
| Year ended December 31,
| 2017 |  | 2016 |  | 2015
Service cost | $ | — |  |  | $ | — |  |  | $ | 0.1 |
Interest cost | 3.5 |  |  | 4.2 |  |  | 4.4 |
Amortization of unrecognized prior service credits | (1.7 | ) |  | (0.8 | ) |  | (0.8 | )
Plan amendment | (2.6 | ) |  | — |  |  | (1.8 | )
Recognized net actuarial (gains) losses | (2.8 | ) |  | 0.6 |  |  | (4.0 | )
Net periodic postretirement benefit expense (income) | $ | (3.6 | ) |  | $ | 4.0 |  |  | $ | (2.1 | )
Schedule of estimated future benefit payments and expected federal subsidies | Following is a summary, as of December 31, 2017, of the estimated future benefit payments for our postretirement plans in each of the next five fiscal years and in the aggregate for five fiscal years thereafter. The expected benefit payments are estimated based on the same assumptions used at December 31, 2017 to measure our obligations and include benefits attributable to estimated future employee service.
| Postretirement Payments
2018 | $ | 8.9 |
2019 | 8.2 |
2020 | 7.5 |
2021 | 6.9 |
2022 | 6.3 |
Subsequent five years | 23.9 |
Schedule of actuarial assumptions used in accounting for plans | Actuarial assumptions used in accounting for our domestic postretirement plans were as follows:
| Year ended December 31,
| 2017 |  | 2016 |  | 2015
Assumed health care cost trend rates: |  |  |  |  |
Health care cost trend rate for next year | 7.25 | % |  | 7.50 | % |  | 6.60 | %
Rate to which the cost trend rate is assumed to decline (the ultimate trend rate) | 5.00 | % |  | 5.00 | % |  | 5.00 | %
Year that the rate reaches the ultimate trend rate | 2027 |  |  | 2027 |  |  | 2024 |
Discount rate used in determining net periodic postretirement benefit expense | 3.60 | % |  | 3.88 | % |  | 3.53 | %
Discount rate used in determining year-end postretirement benefit obligation | 3.34 | % |  | 3.69 | % |  | 3.88 | %

X
- Definition Tabular disclosure of benefits expected to be paid by other employee benefit plans and of the amount of prescription drug subsidy receipts expected in each of the next five fiscal years and in the aggregate for the five fiscal years thereafter. + References No definition available. + Details
Name: | spxc_ScheduleOfExpectedBenefitPaymentsAndFederalSubsidiesTableTextBlock
Namespace Prefix: | spxc_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of net funded status, amounts that are recognized in the balance sheet and accumulated other comprehensive loss before tax of pension plans and/or other employee benefit plans. + References No definition available. + Details
Name: | spxc_ScheduleOfFundedStatusAndAmountsRecognizedInBalanceSheetAndAccumulatedOtherComprehensiveIncomeLossTableTextBlock
Namespace Prefix: | spxc_
Data Type: | nonnum: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_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of accumulated benefit obligations and fair values of plan assets of pension plans and/or other employee benefit plans where the accumulated benefit obligation exceeds the fair value of plan assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e2417-114920 + Details
Name: | us-gaap_ScheduleOfAccumulatedBenefitObligationsInExcessOfFairValueOfPlanAssetsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum: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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(5) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
Name: | us-gaap_ScheduleOfAllocationOfPlanAssetsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the assumptions used to determine for pension plans and/or other employee benefit plans the benefit obligation and net benefit cost, including assumed discount rates, rate increase in compensation increase, and expected long-term rates of return on plan assets. + 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) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
Name: | us-gaap_ScheduleOfAssumptionsUsedTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum: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/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(4) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
Name: | us-gaap_ScheduleOfEffectOfSignificantUnobservableInputsChangesInPlanAssetsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum: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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
Name: | us-gaap_ScheduleOfExpectedBenefitPaymentsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the assumed health care cost trend rates for the next year used to measure the expected cost of benefits covered by the plans, including the ultimate trend rate(s) and when that rate is expected to be achieved. + 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 (l) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
Name: | us-gaap_ScheduleOfHealthCareCostTrendRatesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum: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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
Name: | us-gaap_ScheduleOfNetBenefitCostsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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

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