XML 86 R76.htm IDEA: XBRL DOCUMENT
v3.25.2

BUSINESS COMBINATIONS - Contingent Consideration (Details) - USD ($) $ in Millions | Mar. 03, 2025 | Oct. 23, 2024
--- | --- | ---
Alternative Power Generation, Inc. |  |
Business Combination, Contingent Consideration Arrangements |  |
Business combination, contingent consideration arrangements, earnout payments, maximum payout | $ 18.0 |
Business combination, contingent consideration arrangements, earnout payments, earnout period | 3 years |
Enica Engineering, PLLC |  |
Business Combination, Contingent Consideration Arrangements |  |
Business combination, contingent consideration arrangements, range of outcomes, value, low |  | $ 12.0
Business combination, contingent consideration arrangements, earnout payments, maximum payout |  | $ 6.0
Business combination, contingent consideration arrangements, earnout payments, earnout period |  | 2 years
Business combination, contingent consideration arrangements, range of outcomes, value, high |  | $ 18.0

X
- References No definition available. + Details
Name: | us-gaap_BusinessCombinationContingentConsiderationArrangementsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Maximum amount of estimate for undiscounted range of outcomes in contingent consideration arrangement in business combination. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 805 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 8 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479328/805-10-50-8 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 805 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 43 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479303/805-10-55-43 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 805 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479581/805-30-50-2 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 805 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c)(3) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479581/805-30-50-1 + Details
Name: | us-gaap_BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueHigh
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Minimum amount of estimate for undiscounted range of outcomes in contingent consideration arrangement in business combination. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 805 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 8 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479328/805-10-50-8 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 805 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 43 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479303/805-10-55-43 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 805 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479581/805-30-50-2 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 805 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c)(3) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479581/805-30-50-1 + Details
Name: | us-gaap_BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueLow
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Business Combination, Contingent Consideration Arrangements, Earnout Payments, Earnout Period + References No definition available. + Details
Name: | wldn_BusinessCombinationContingentConsiderationArrangementsEarnoutPaymentsEarnoutPeriod
Namespace Prefix: | wldn_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Business Combination, Contingent Consideration Arrangements, Earnout Payments, Maximum Payout + References No definition available. + Details
Name: | wldn_BusinessCombinationContingentConsiderationArrangementsEarnoutPaymentsMaximumPayout
Namespace Prefix: | wldn_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=wldn_AlternativePowerGenerationIncMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=wldn_EnicaEngineeringPllcMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |