XML 48 R38.htm IDEA: XBRL DOCUMENT v3.25.3

FAIR VALUE (Tables)

9 Months Ended

Sep. 27, 2025

Fair Value Disclosures [Abstract]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis

The following table presents our fair value hierarchy of our financial assets measured at fair value on a recurring basis as of September 27, 2025:

			September 27, 2025
			Level 1						Level 2						Level 3						Total
Assets:
Derivative financial instruments			$	—					$	—					$	—					$	—
Equity security			—						—						39.7						39.7

The following table presents our fair value hierarchy of our financial assets measured at fair value on a recurring basis as of December 31, 2024:

			December 31, 2024
			Level 1						Level 2						Level 3						Total
Assets:
Derivative financial instruments			$	—					$	3.4					$	—					$	3.4
Equity security			—						—						35.2						35.2

Schedule of Equity Security, FV-NI

The following table provides a reconciliation of activity for the equity security for the nine months ended September 27, 2025:

Balance at beginning of period			$	35.2
Change in fair value of equity security			4.5
Balance at end of period			$	39.7

X

- Definition

Schedule Of Equity Security, FV-NI

+ References

No definition available.

+ Details

Name:	spxc_ScheduleOfEquitySecurityFVNITableTextBlock
Namespace Prefix:	spxc_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

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

X

- Definition

Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

+ Details

Name:	us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration