XML 90 R31.htm IDEA: XBRL DOCUMENT v3.24.0.1

Insider Trading Arrangements shares in Thousands	3 Months Ended
	Dec. 31, 2023 shares
Trading Arrangements, by Individual
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false
Joseph Cutillo [Member]
Trading Arrangements, by Individual
Name	Joseph Cutillo
Title	Chief Executive Officer,
Rule 10b5-1 Arrangement Adopted	true
Adoption Date	December 20, 2023
Arrangement Duration	352 days
Joseph Cutillo Trading Arrangement, Common Stock [Member] | Joseph Cutillo [Member]
Trading Arrangements, by Individual
Aggregate Available	300

X

- References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-K
-Number 229
-Section 408
-Subsection a
-Paragraph 1

+ Details

Name:	ecd_NonRule10b51ArrAdoptedFlag
Namespace Prefix:	ecd_
Data Type:	xbrli:booleanItemType
Balance Type:	na
Period Type:	duration

X

- References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-K
-Number 229
-Section 408
-Subsection a
-Paragraph 1

+ Details

Name:	ecd_NonRule10b51ArrTrmntdFlag
Namespace Prefix:	ecd_
Data Type:	xbrli:booleanItemType
Balance Type:	na
Period Type:	duration

X

- References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-K
-Number 229
-Section 408
-Subsection a
-Paragraph 1

+ Details

Name:	ecd_Rule10b51ArrAdoptedFlag
Namespace Prefix:	ecd_
Data Type:	xbrli:booleanItemType
Balance Type:	na
Period Type:	duration

X

- References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-K
-Number 229
-Section 408
-Subsection a
-Paragraph 1

+ Details

Name:	ecd_Rule10b51ArrTrmntdFlag
Namespace Prefix:	ecd_
Data Type:	xbrli:booleanItemType
Balance Type:	na
Period Type:	duration

X

- References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-K
-Number 229
-Section 408
-Subsection a
-Paragraph 2
-Subparagraph A

+ Details

Name:	ecd_TradingArrByIndTable
Namespace Prefix:	ecd_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-K
-Number 229
-Section 408
-Subsection a
-Paragraph 2
-Subparagraph B

+ Details

Name:	ecd_TrdArrAdoptionDate
Namespace Prefix:	ecd_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-K
-Number 229
-Section 408
-Subsection a
-Paragraph 2
-Subparagraph C

+ Details

Name:	ecd_TrdArrDuration
Namespace Prefix:	ecd_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-K
-Number 229
-Section 408
-Subsection a
-Paragraph 2
-Subparagraph A

+ Details

Name:	ecd_TrdArrIndName
Namespace Prefix:	ecd_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-K
-Number 229
-Section 408
-Subsection a
-Paragraph 2
-Subparagraph A

+ Details

Name:	ecd_TrdArrIndTitle
Namespace Prefix:	ecd_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-K
-Number 229
-Section 408
-Subsection a
-Paragraph 2
-Subparagraph D

+ Details

Name:	ecd_TrdArrSecuritiesAggAvailAmt
Namespace Prefix:	ecd_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

X

- Details

Name:	ecd_IndividualAxis=strl_JosephCutilloMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ecd_TradingArrAxis=strl_JosephCutilloTradingArrangementCommonStockMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: