XML 54 R45.htm IDEA: XBRL DOCUMENT
v3.23.1

LEASES - Rent Expense (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2023 | Apr. 01, 2022
LEASES |  |
Rent expenses | $ 1.6 | $ 1.6

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

X
- Definition Amount of operating lease expense. Excludes sublease income. + References No definition available. + Details
Name: | wldn_OperatingLeaseRentExpenses
Namespace Prefix: | wldn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration