XML 79 R63.htm IDEA: XBRL DOCUMENT v3.22.2

Commitments and Contingencies (Details)	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021
Commitments and Contingencies Disclosure [Abstract]
Ownership interest in subsidiaries	50.00%	50.00%	50.00%

X

- Definition

Consolidated Entities, Ownership Percentage

+ References

No definition available.

+ Details

Name:	strl_ConsolidatedEntitiesOwnershipPercentage
Namespace Prefix:	strl_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

X

- References

No definition available.

+ Details

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