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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 29, 2014
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
Repurchase of senior notes, premiums paid	$ 30.6

X

- Definition

Represents the amount of cash outflow for premiums paid on repurchase of senior notes during the period.

+ References

No definition available.

+ Details

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

X

- Details

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