Represents the amount of pension obligations assumed by third party.

No definition available.

Name:	spw_AmountOfPensionObligationAssumedByThirdParty
Namespace Prefix:	spw_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Represents the amount paid for the obligations assumed by third party.

+ References

No definition available.

+ Details

Name:	spw_ConsiderationPaidForObligationsAssumedByThirdParty
Namespace Prefix:	spw_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Represents the percentage of total target assets under the defined benefit plan.

+ References

No definition available.

+ Details

Name:	spw_DefinedBenefitPlanAssetsTargetAllocationPercentageOfAssets
Namespace Prefix:	spw_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the number of eligible former employees intended to be offered with voluntary single lump-sum payment option in lieu of a future pension benefit under the Plan during a designated election period.

+ References

No definition available.

+ Details

Name:	spw_NumberOfEligibleFormerEmployeesIntendedToBeOfferedWithOptionForLumpSumPaymentInLieuOfFuturePensionBenefit
Namespace Prefix:	spw_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the number of retirees that are being irrevocably assumed by third party through the transfer of retiree pension.

+ References

No definition available.

+ Details

Name:	spw_NumberOfRetireesAssumedForFuturePensionPaymentsUnderPensionPlan
Namespace Prefix:	spw_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the number of shares of common stock held by defined benefit plans.

+ References

No definition available.

+ Details

Name:	spw_SharesOfCommonStockHeldByDefinedBenefitPlan
Namespace Prefix:	spw_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Details

Name:	us-gaap_CompensationAndRetirementDisclosureAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_DefinedBenefitPlanDisclosureLineItems
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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of fair value of investments (categorized by debt securities, equity securities, real estate and other plan assets) to the fair value of plan assets held.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 5

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e2446-114920

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (d)(1)

-URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e1928-114920

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 132R

-Paragraph 5

-Subparagraph d(1)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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Employee Benefit Plans (Details) (USD $) In Millions, except Share data, unless otherwise specified	0 Months Ended	12 Months Ended			12 Months Ended		12 Months Ended		12 Months Ended		12 Months Ended		12 Months Ended		12 Months Ended		12 Months Ended		12 Months Ended		12 Months Ended		12 Months Ended		12 Months Ended		12 Months Ended		12 Months Ended
	Nov. 12, 2013 item	Dec. 31, 2013 item	Dec. 31, 2013 Defined benefit pension plans	Dec. 31, 2012 Defined benefit pension plans	Dec. 31, 2013 Domestic Pension Plans	Dec. 31, 2012 Domestic Pension Plans	Dec. 31, 2013 Domestic Pension Plans Global equities	Dec. 31, 2012 Domestic Pension Plans Global equities	Dec. 31, 2013 Domestic Pension Plans Global equity common trust funds	Dec. 31, 2012 Domestic Pension Plans Global equity common trust funds	Dec. 31, 2013 Domestic Pension Plans Fixed income common trust funds	Dec. 31, 2012 Domestic Pension Plans Fixed income common trust funds	Dec. 31, 2013 Domestic Pension Plans Commingled global fund allocations	Dec. 31, 2012 Domestic Pension Plans Commingled global fund allocations	Dec. 31, 2013 Domestic Pension Plans Short term investments	Dec. 31, 2012 Domestic Pension Plans Short term investments	Dec. 31, 2013 Domestic Pension Plans Other	Dec. 31, 2012 Domestic Pension Plans Other	Dec. 31, 2013 Foreign Pension Plans	Dec. 31, 2012 Foreign Pension Plans	Dec. 31, 2013 Foreign Pension Plans Global equity common trust funds	Dec. 31, 2012 Foreign Pension Plans Global equity common trust funds	Dec. 31, 2013 Foreign Pension Plans Fixed income common trust funds	Dec. 31, 2012 Foreign Pension Plans Fixed income common trust funds	Dec. 31, 2013 Foreign Pension Plans Non-U.S. Government securities	Dec. 31, 2012 Foreign Pension Plans Non-U.S. Government securities	Dec. 31, 2013 Foreign Pension Plans Short term investments	Dec. 31, 2012 Foreign Pension Plans Short term investments	Dec. 31, 2013 Foreign Pension Plans Other	Dec. 31, 2012 Foreign Pension Plans Other
Employee Benefit Plans
Number of retirees assumed by third party for future pension payments	16,000	16,000
Amount paid for obligations assumed by third party	$ 663.7	$ 663.7
Obligations assumed by third party	$ 609.0
Number of eligible former employees intended to be offered with voluntary single lump-sum payment option in lieu of a future pension benefit	7,500
Employee benefit plans
Number of shares of common stock held by defined benefit plans			0	0
Actual Allocations (as a percent)					100.00%	100.00%	6.00%	12.00%	25.00%	28.00%	20.00%	29.00%	15.00%	26.00%	33.00%	4.00%	1.00%	1.00%	100.00%	100.00%	43.00%	38.00%	40.00%	40.00%	14.00%	13.00%	2.00%	8.00%	1.00%	1.00%
Mid-point of Target Allocation Range (as a percent)					100.00%		5.00%		10.00%		65.00%		18.00%		0.00%		2.00%		100.00%		43.00%		30.00%		25.00%		1.00%		1.00%