XML 90 R63.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Employee Benefit Plans (Details 8) (USD $) In Millions, except Share data in Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
The "DC" Plan |  |  |
Defined Contribution Retirement Plans |  |  |
Maximum voluntary contribution by eligible U.S. employees as a percentage of their compensation | 50.00%us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent / us-gaap_DefinedContributionPlanTypeAxis = spw_DefinedContributionRetirementPlanMember |  |
Number of shares contributed | 167 spw_DefinedContributionPlanNumberOfSharesContributed / us-gaap_DefinedContributionPlanTypeAxis = spw_DefinedContributionRetirementPlanMember | 206 spw_DefinedContributionPlanNumberOfSharesContributed / us-gaap_DefinedContributionPlanTypeAxis = spw_DefinedContributionRetirementPlanMember | 266 spw_DefinedContributionPlanNumberOfSharesContributed / us-gaap_DefinedContributionPlanTypeAxis = spw_DefinedContributionRetirementPlanMember
Compensation expense | $ 16.4 us-gaap_DefinedContributionPlanCostRecognized / us-gaap_DefinedContributionPlanTypeAxis = spw_DefinedContributionRetirementPlanMember | $ 15.3 us-gaap_DefinedContributionPlanCostRecognized / us-gaap_DefinedContributionPlanTypeAxis = spw_DefinedContributionRetirementPlanMember | $ 15.5 us-gaap_DefinedContributionPlanCostRecognized / us-gaap_DefinedContributionPlanTypeAxis = spw_DefinedContributionRetirementPlanMember
Supplemental Retirement Savings Plan (SRSP) |  |  |
Defined Contribution Retirement Plans |  |  |
Compensation expense | 0.6 us-gaap_DefinedContributionPlanCostRecognized / us-gaap_DefinedContributionPlanTypeAxis = spw_SupplementalRetirementSavingsPlanBenefitMember | 0.3 us-gaap_DefinedContributionPlanCostRecognized / us-gaap_DefinedContributionPlanTypeAxis = spw_SupplementalRetirementSavingsPlanBenefitMember | 0.3 us-gaap_DefinedContributionPlanCostRecognized / us-gaap_DefinedContributionPlanTypeAxis = spw_SupplementalRetirementSavingsPlanBenefitMember
Supplemental Retirement Savings Plan (SRSP) | Quoted Prices in Active Markets for Identical Assets (Level 1) |  |  |
Defined Contribution Retirement Plans |  |  |
Fair value of plan assets | $ 50.5 us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedContributionPlanTypeAxis = spw_SupplementalRetirementSavingsPlanBenefitMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member | $ 46.2 us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedContributionPlanTypeAxis = spw_SupplementalRetirementSavingsPlanBenefitMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member |

X
- Definition Represents the number of shares contributed by the entity under the defined contribution plan. + References No definition available. + Details
Name: | spw_DefinedContributionPlanNumberOfSharesContributed
Namespace Prefix: | spw_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- 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 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 Reference 2: 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=29635418&loc=d3e12355-114930 + Details
Name: | us-gaap_DefinedBenefitPlanFairValueOfPlanAssets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of the cost recognized during the period for defined contribution plans. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 70 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6414718&loc=d3e28014-114942 + Details
Name: | us-gaap_DefinedContributionPlanCostRecognized
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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

X
- Definition Maximum percentage of employee gross pay the employee may contribute to a defined contribution plan. + References No definition available. + Details
Name: | us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_DefinedContributionPlanTypeAxis=spw_DefinedContributionRetirementPlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedContributionPlanTypeAxis=spw_SupplementalRetirementSavingsPlanBenefitMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |