XML 76 R66.htm IDEA: XBRL DOCUMENT v3.21.1

CONTINGENT LIABILITIES AND OTHER MATTERS - Large Power Projects in South Africa (Details) R in Millions								1 Months Ended
	Apr. 28, 2021 USD ($)	Apr. 28, 2021 ZAR (R)	Feb. 22, 2021 USD ($) project	Feb. 22, 2021 ZAR (R) project	Feb. 05, 2021 USD ($)	Jul. 23, 2020 USD ($) dispute	Jul. 23, 2020 ZAR (R)	Apr. 30, 2021 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2020 ZAR (R)	Feb. 28, 2019 USD ($)	Feb. 28, 2019 ZAR (R)	Apr. 03, 2021 USD ($)	Apr. 03, 2021 ZAR (R)	Dec. 31, 2020 USD ($)	Dec. 31, 2020 ZAR (R)	Jul. 31, 2019 USD ($)	Jul. 31, 2019 ZAR (R)	Feb. 26, 2019 USD ($)	Feb. 26, 2019 ZAR (R)
Contingent Liabilities and Other Matters
Number of disputes | dispute						9
Other assets													$ 613,000,000.0		$ 616,600,000
Large Power Projects
Contingent Liabilities and Other Matters
Payment for bonds					$ 6,700,000
SOUTH AFRICA | Large Power Projects
Contingent Liabilities and Other Matters
Gain contingency													74,600,000	R 1,100.0
Unrecorded gain contingency, current proceeding													36,200,000	533.9
Number of disputes | project			2	2
Litigation settlement			$ 8,600,000	R 126.6
Estimate of possible legal claim deemed unlikely																			$ 64,300,000	R 948.0
SOUTH AFRICA | Large Power Projects | Subsequent Event
Contingent Liabilities and Other Matters
Litigation settlement interest	$ 5,100,000	R 75.8
SOUTH AFRICA | Large Power Projects | Demand Bonds
Contingent Liabilities and Other Matters
Original loan balance						$ 2,300,000
SOUTH AFRICA | Large Power Projects | Demand Bonds | MHI
Contingent Liabilities and Other Matters
Litigation settlement						1,100,000	R 18.4
Payment for bonds									$ 14,300,000	R 239.6	$ 16,200,000	R 239.6
Other assets													16,200,000	R 239.6	$ 16,200,000	R 239.6
SOUTH AFRICA | Large Power Projects | Demand Bonds | MHI | Subsequent Event
Contingent Liabilities and Other Matters
Cancelation of debt								$ 22,200,000
SOUTH AFRICA | Large Power Projects | Demand Bonds | Bonds Upon Completion Of Certain Administrative Milestones
Contingent Liabilities and Other Matters
Original loan balance						$ 4,600,000
SOUTH AFRICA | Large Power Projects | Demand Bonds, Performance and Retention Money Guarantees | MHI
Contingent Liabilities and Other Matters
Long-term debt													$ 16,100,000
SOUTH AFRICA | Large Power Projects | MHI April And July 2019 Claims
Contingent Liabilities and Other Matters
Estimate of possible legal claim deemed unlikely																	$ 27,600,000	R 407.2
SOUTH AFRICA | Large Power Projects | MHI Additional Claims
Contingent Liabilities and Other Matters
Estimate of possible legal claim deemed unlikely																	$ 11,900,000	R 176.2

X

- Definition

Gain Contingency, Unrecorded Amount, Current Proceeding

+ References

No definition available.

+ Details

Name:	spxc_GainContingencyUnrecordedAmountCurrentProceeding
Namespace Prefix:	spxc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Loss Contingency, Cancellation Of Debt

+ References

No definition available.

+ Details

Name:	spxc_LossContingencyCancellationOfDebt
Namespace Prefix:	spxc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Number Of Disputes

+ References

No definition available.

+ Details

Name:	spxc_NumberOfDisputes
Namespace Prefix:	spxc_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=119993939&loc=d3e28551-108399

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400

+ Details

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

X

- Definition

The amount or range of possible amounts of gain that could be realized upon the resolution of a contingency.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 30
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6397426&loc=d3e17499-108355

+ Details

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

X

- Definition

Amount awarded from other party in judgment or settlement of litigation.

+ References

No definition available.

+ Details

Name:	us-gaap_LitigationSettlementAmountAwardedFromOtherParty
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Interest expense (income) directly attributable to an award in settlement of litigation.

+ References

No definition available.

+ Details

Name:	us-gaap_LitigationSettlementInterest
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (b)(3)
-URI http://asc.fasb.org/extlink&oid=120520924&loc=SL6031897-161870

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(16))
-URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

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

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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

X

- Definition

Reflects the estimated amount of loss from the specified contingency as of the balance sheet date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121557415&loc=d3e14435-108349

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 9
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121557415&loc=d3e14557-108349

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=121555522&loc=d3e12021-110248

+ Details

Name:	us-gaap_LossContingencyEstimateOfPossibleLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Amount of noncurrent assets classified as other.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.17)
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

Name:	us-gaap_OtherAssetsNoncurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Amount of cash outflow for cost from early extinguishment and prepayment of debt. Includes, but is not limited to, third-party cost, premium paid, and other fee paid to lender directly for debt extinguishment or debt prepayment. Excludes accrued interest.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (g)
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3291-108585

+ Details

Name:	us-gaap_PaymentsOfDebtExtinguishmentCosts
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Details

Name:	us-gaap_TypeOfArrangementAxis=spxc_LargePowerProjectsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_StatementGeographicalAxis=country_ZA
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_LongtermDebtTypeAxis=spxc_DemandBondsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_CounterpartyNameAxis=spxc_MHIMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ContingentConsiderationByTypeAxis=spxc_BondsUponCompletionOfCertainAdministrativeMilestonesMemberMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_LongtermDebtTypeAxis=spxc_DemandBondsPerformanceAndRetentionMoneyGuaranteesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_LitigationCaseAxis=spxc_MHIAprilAndJuly2019ClaimsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_LitigationCaseAxis=spxc_MHIAdditionalClaimsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: