XML 112 R82.htm IDEA: XBRL DOCUMENT v3.25.0.1

Pension Postretirement Benefits Plans - Schedule of Weighted Average Assumption in the Measurement of the Benefit Obligations (Details) - Pension Plan	Dec. 31, 2024	Dec. 31, 2023
U.S.
Defined Benefit Plan Disclosure [Line Items]
Discount rate	5.70%	5.00%
U.S. | Maximum
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase, year one	4.00%	4.00%
U.S. | Minimum
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase, year two and beyond	3.00%	3.00%
Non U.S. | Maximum
Defined Benefit Plan Disclosure [Line Items]
Discount rate	4.60%	4.70%
Rate of compensation increase	4.00%	4.00%
Non U.S. | Minimum
Defined Benefit Plan Disclosure [Line Items]
Discount rate	0.90%	1.30%
Rate of compensation increase	1.60%	2.30%

X

- Definition

Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Rate of Compensation Increase, Year One

+ References

No definition available.

+ Details

Name:	uls_DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncreaseYearOne
Namespace Prefix:	uls_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Rate of Compensation Increase, Year Two And Beyond

+ References

No definition available.

+ Details

Name:	uls_DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncreaseYearTwoAndBeyond
Namespace Prefix:	uls_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Weighted average rate for present value of future retirement benefits cash flows, used to determine benefit obligation of defined benefit plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (k)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480506/715-20-50-1

+ Details

Name:	us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Weighted average rate increase of compensation, used to determine benefit obligation of defined benefit plan. Plan includes, but is not limited to, pay-related defined benefit plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (k)(2)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480506/715-20-50-1

+ Details

Name:	us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
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_DefinedBenefitPlanDisclosureLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_RetirementPlanSponsorLocationAxis=country_US
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_RetirementPlanTypeAxis=us-gaap_PensionPlansDefinedBenefitMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_RetirementPlanSponsorLocationAxis=us-gaap_ForeignPlanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: