Represents the initial payment to acquire the entity.

No definition available.

Name:	spw_BusinessAcquisitionCostOfAcquiredEntityInitialPayment
Namespace Prefix:	spw_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Represents the amount of deduction from Group EBITDA multiplied by ten.

+ References

No definition available.

+ Details

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

- Definition

Represents the potential earn-out payment equal to number of times of Group EBITDA.

+ References

No definition available.

+ Details

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

- Definition

Represents the amount of acquisition cost of a business combination allocated to the debt assumed and other adjustments from the acquired entity.

+ References

No definition available.

+ Details

Name:	spw_BusinessAcquisitionPurchasePriceAllocationNoncurrentLiabilitiesLongTermDebtAndOther
Namespace Prefix:	spw_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of potential cash payments that could result from the contingent consideration arrangement.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 141

-Paragraph 51

-Subparagraph f

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The carrying amount as of the balance sheet date of the combined total of loss contingency liabilities.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 450

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6952336&loc=d3e14326-108349

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 5

-Paragraph 9, 10, 11, 12

-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.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The portion of the carrying amount as of the balance sheet date of the combined total of loss contingency liabilities which is expected to be resolved after one year or beyond the normal operating cycle, if longer.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The portion of the carrying amount as of the balance sheet date of a recorded receivable related to a loss contingency accrual that is expected to be collected after one year or beyond the normal operating cycle, if longer. For example, an insurance recovery receivable to the extent that the insurance recovery is probable and does not exceed the amount of the loss previously recognized in the financial statements.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 5

-Paragraph 9, 10, 11, 12

-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.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 460

-SubTopic 10

-Section 50

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=6851643&loc=d3e12053-110248

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

CONTINGENT LIABILITIES AND OTHER MATTERS (Details) In Millions, unless otherwise specified						9 Months Ended
	Sep. 28, 2013 USD ($)	Sep. 28, 2013 GBP (£)	Dec. 31, 2012 USD ($)	Dec. 22, 2011 Clyde Union Minimum GBP (£)	Dec. 22, 2011 Clyde Union Maximum GBP (£)	Sep. 28, 2013 Flow Technology Reportable Segment Clyde Union GBP (£) item	Dec. 22, 2011 Flow Technology Reportable Segment Clyde Union GBP (£)	Sep. 28, 2013 Risk management matters USD ($)	Dec. 31, 2012 Risk management matters USD ($)
Contingencies and other matters
Carrying values of accruals	$ 548.8		$ 548.6					$ 502.5	$ 501.3
Accruals included in other long-term liabilities	499.8		497.0
Insurance recovery assets								432.8	430.6
Initial payment							500.0
Debt assumed and other adjustments							11.0
Potential earn-out payment equal to number of times of Group EBITDA						10
Deduction from Group EBITDA x 10						475.0
Earn-out payment		£ 0		£ 0	£ 250.0