XML 43 R28.htm IDEA: XBRL DOCUMENT v3.25.0.1

ORGANIZATION AND OPERATIONS OF THE COMPANY (Tables)

12 Months Ended

Dec. 27, 2024

ORGANIZATION AND OPERATIONS OF THE COMPANY

Schedule of contracts by reportable segments and type of contracts

​

Segment	Contract Type	Revenue Recognition Method
​	Time-and-materials	Time-and-materials
Energy	Unit-based	Unit-based
​	Software license	Unit-based
​	Fixed price	Percentage-of-completion
​	Time-and-materials	Time-and-materials
Engineering and Consulting	Unit-based	Unit-based
​	Fixed price	Percentage-of-completion

Schedule of equipment and leasehold improvements

​

​	​	​	​
Category		Estimated Useful Life
Furniture and fixtures		5	years
Computer hardware		3	years
Computer software		3	years
Automobiles and trucks		3	years
Field equipment		5	years

​

​	​	​	​	​	​	​
​	​	December 27,		​	December 29,
​	​	2024			2023
​	​	(in thousands)
Furniture and fixtures	​	$	4,594	​	$	4,379
Computer hardware and software	​		51,904	​		44,594
Leasehold improvements	​		3,804	​		3,382
Equipment under finance leases	​		7,052	​		6,139
Automobiles, trucks, and field equipment	​		3,608	​		3,373
Subtotal	​		70,962	​		61,867
Accumulated depreciation and amortization	​		(41,428)	​		(34,770)
Equipment and leasehold improvements, net	​	$	29,534	​	$	27,097

X

- References

No definition available.

+ Details

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

X

- Definition

Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-SubTopic 10
-Topic 360
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482099/360-10-50-1

+ Details

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

X

- Definition

Tabular disclosure of contracts for revenue generating activities by type and by reporting segment.

+ References

No definition available.

+ Details

Name:	wldn_ScheduleOfByTypeAndReportableSegmentTableTextBlock
Namespace Prefix:	wldn_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration