XML 38 R50.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Summary of Significant Accounting Policies (Details 2) (Domestic qualified pension plan, Historical method) | 12 Months Ended
--- | ---
Dec. 31, 2013
Domestic qualified pension plan | Historical method |
Pension and Postretirement |
Amortization period of plan assets | 5 years

X
- Definition For defined benefit plans, this element represents the amortization period of plan assets. + References No definition available. + Details
Name: | spw_DefinedBenefitPlanAmortizationPeriodOfPlanAssets
Namespace Prefix: | spw_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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