$STRL
STERLING INFRASTRUCTURE, INC. Stock $strl

$strl Overview Financials Valuation SEC Filings Company Website

2023 Q1 Form 10-K Financial Statement

#000087423823000023 Filed on February 28, 2023

Income Statement

Concept	2023 Q1	2022 Q4	2022
Revenue	$403.6M	$291.6M	$1.769B
YoY Change	-1.64%	-27.34%	11.86%
Cost Of Revenue	$341.8M	$223.6M	$1.495B
YoY Change	-3.49%	-35.32%	9.35%
Gross Profit	$61.74M	$68.97M	$274.6M
YoY Change	9.98%	23.87%	27.85%
Gross Profit Margin	15.3%	23.65%	15.52%
Selling, General & Admin	$23.32M	$13.52M	$86.48M
YoY Change	1.08%	-47.89%	10.16%
% of Gross Profit	37.77%	19.6%	31.5%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$13.69M	$13.52M	$52.07M
YoY Change	16.36%	52.46%	52.24%
% of Gross Profit	22.18%	19.6%	18.96%
Operating Expenses	$28.93M	$25.13M	$113.9M
YoY Change	4.74%	-21.5%	9.92%
Operating Profit	$32.63M	$37.04M	$159.9M
YoY Change	15.42%	56.58%	49.01%
Interest Expense	-$5.554M	-$5.712M	-$19.71M
YoY Change	21.35%	55.43%	2.12%
% of Operating Profit	-17.02%	-15.42%	-12.33%
Other Income/Expense, Net
YoY Change
Pretax Income	$27.07M	$34.69M	$140.2M
YoY Change	3.65%	115.35%	55.7%
Income Tax	$7.033M	$12.28M	$41.71M
% Of Pretax Income	25.98%	35.4%	29.76%
Net Earnings	$19.65M	$31.73M	$106.5M
YoY Change	0.65%	190.84%	63.48%
Net Earnings / Revenue	4.87%	10.88%	6.02%
Basic Earnings Per Share	$0.64		$3.53
Diluted Earnings Per Share	$0.64	$1.01	$3.48
COMMON SHARES
Basic Shares Outstanding	30.59M shares	30.33M shares	30.20M shares
Diluted Shares Outstanding	30.79M shares		30.56M shares

Balance Sheet

Concept	2023 Q1	2022 Q4	2022
SHORT-TERM ASSETS
Cash & Short-Term Investments	$202.6M	$181.5M	$181.5M
YoY Change	151.98%	121.83%	121.83%
Cash & Equivalents	$202.6M	$181.5M	$181.5M
Short-Term Investments
Other Short-Term Assets	$16.09M	$29.14M	$29.14M
YoY Change	-26.65%	42.2%	42.2%
Inventory
Prepaid Expenses
Receivables	$355.6M	$372.4M	$372.4M
Other Receivables	$13.65M	$14.12M	$14.12M
Total Short-Term Assets	$588.0M	$597.3M	$597.3M
YoY Change	34.89%	37.4%	37.4%
LONG-TERM ASSETS
Property, Plant & Equipment	$277.5M	$274.9M	$274.9M
YoY Change	11.02%	20.13%	20.13%
Goodwill	$262.7M	$262.7M
YoY Change	4.09%	1.12%
Intangibles	$295.4M	$299.1M
YoY Change	-1.56%	-1.35%
Long-Term Investments
YoY Change
Other Assets	$7.615M	$7.654M	$7.654M
YoY Change	69.67%	71.81%	71.81%
Total Long-Term Assets	$843.2M	$844.4M	$844.4M
YoY Change	4.5%	6.04%	6.04%
TOTAL ASSETS
Total Short-Term Assets	$588.0M	$597.3M	$597.3M
Total Long-Term Assets	$843.2M	$844.4M	$844.4M
Total Assets	$1.431B	$1.442B	$1.442B
YoY Change	15.16%	17.11%	17.11%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$119.5M	$121.9M	$121.9M
YoY Change	-16.7%	-15.93%	-15.93%
Accrued Expenses	$34.28M	$43.85M	$43.85M
YoY Change	-4.6%	38.58%	38.58%
Deferred Revenue	$242.3M	$239.3M
YoY Change	108.57%	87.05%
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$35.06M	$32.61M	$32.61M
YoY Change	15.45%	15.52%	15.52%
Total Short-Term Liabilities	$444.7M	$446.6M	$446.6M
YoY Change	30.98%	26.96%	26.96%
LONG-TERM LIABILITIES
Long-Term Debt	$365.5M	$398.7M	$398.7M
YoY Change	-12.41%	-6.97%	-6.97%
Other Long-Term Liabilities	$4.666M	$5.116M	$66.82M
YoY Change	5.8%	6.16%	-11.81%
Total Long-Term Liabilities	$370.2M	$403.9M	$465.6M
YoY Change	-12.22%	-6.82%	-7.69%
TOTAL LIABILITIES
Total Short-Term Liabilities	$444.7M	$446.6M	$446.6M
Total Long-Term Liabilities	$370.2M	$403.9M	$465.6M
Total Liabilities	$932.9M	$963.8M	$967.0M
YoY Change	7.83%	10.69%	10.87%
SHAREHOLDERS EQUITY
Retained Earnings	$206.0M	$186.4M
YoY Change	107.75%	133.21%
Common Stock	$308.0K	$306.0K
YoY Change	1.99%	2.68%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$494.7M	$474.6M	$474.6M
YoY Change
Total Liabilities & Shareholders Equity	$1.431B	$1.442B	$1.442B
YoY Change	15.16%	17.11%	17.11%

Cashflow Statement

Concept	2023 Q1	2022 Q4	2022
OPERATING ACTIVITIES
Net Income	$19.65M	$31.73M	$106.5M
YoY Change	0.65%	190.84%	63.48%
Depreciation, Depletion And Amortization	$13.69M	$13.52M	$52.07M
YoY Change	16.36%	52.46%	52.24%
Cash From Operating Activities	$49.06M	$88.47M	$219.1M
YoY Change	155.74%	458.09%	44.54%
INVESTING ACTIVITIES
Capital Expenditures	$14.22M	$13.08M	$60.91M
YoY Change	-5.0%	-278.26%	30.56%
Acquisitions	$0.00		$18.00M
YoY Change			-90.05%
Other Investing Activities	$20.73M	-$28.86M	-$28.85M
YoY Change	5004.93%	-83.87%	-83.68%
Cash From Investing Activities	$6.505M	-$41.93M	-$89.76M
YoY Change	-144.67%	-77.48%	-59.83%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net	$30.84M		$23.37M
YoY Change	420.29%		-51.58%
Cash From Financing Activities	-$35.13M	-15.18M	-$32.79M
YoY Change	492.63%	-111.27%	-137.3%
NET CHANGE
Cash From Operating Activities	$49.06M	88.47M	$219.1M
Cash From Investing Activities	$6.505M	-41.93M	-$89.76M
Cash From Financing Activities	-$35.13M	-15.18M	-$32.79M
Net Change In Cash	$20.43M	31.36M	$96.57M
YoY Change	-1662.08%	-187.78%	501.66%
FREE CASH FLOW
Cash From Operating Activities	$49.06M	$88.47M	$219.1M
Capital Expenditures	$14.22M	$13.08M	$60.91M
Free Cash Flow	$34.84M	$75.39M	$158.2M
YoY Change	726.7%	225.13%	50.76%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2022	dei	Entity Central Index Key EntityCentralIndexKey	0000874238
CY2022	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2022
CY2022	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2022	dei	Amendment Flag AmendmentFlag	false
CY2021Q4	us-gaap	Finance Lease Right Of Use Asset Statement Of Financial Position Extensible List FinanceLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2022#PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization
CY2022Q4	us-gaap	Finance Lease Right Of Use Asset Statement Of Financial Position Extensible List FinanceLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2022#PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization
CY2022Q4	us-gaap	Finance Lease Liability Current Statement Of Financial Position Extensible List FinanceLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2022#LongTermDebtCurrent
CY2021Q4	us-gaap	Finance Lease Liability Current Statement Of Financial Position Extensible List FinanceLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2022#LongTermDebtCurrent
CY2022Q4	us-gaap	Finance Lease Liability Noncurrent Statement Of Financial Position Extensible List FinanceLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2022#LongTermDebtNoncurrent
CY2021Q4	us-gaap	Finance Lease Liability Noncurrent Statement Of Financial Position Extensible List FinanceLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2022#LongTermDebtNoncurrent
CY2022	dei	Document Type DocumentType	10-K
CY2022	dei	Document Annual Report DocumentAnnualReport	true
CY2022	dei	Document Period End Date DocumentPeriodEndDate	2022-12-31
CY2022	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2022	dei	Document Transition Report DocumentTransitionReport	false
CY2022	dei	Entity File Number EntityFileNumber	1-31993
CY2022	dei	Entity Registrant Name EntityRegistrantName	STERLING INFRASTRUCTURE, INC.
CY2022	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2022	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	25-1655321
CY2022	dei	Entity Address Address Line1 EntityAddressAddressLine1	1800 Hughes Landing Blvd.
CY2022	dei	Entity Address City Or Town EntityAddressCityOrTown	The Woodlands
CY2022	dei	Entity Address State Or Province EntityAddressStateOrProvince	TX
CY2022	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	77380
CY2022	dei	City Area Code CityAreaCode	281
CY2022	dei	Local Phone Number LocalPhoneNumber	214-0777
CY2022	dei	Security12b Title Security12bTitle	Common Stock, $0.01 par value per share
CY2022	dei	Trading Symbol TradingSymbol	STRL
CY2022	dei	Security Exchange Name SecurityExchangeName	NASDAQ
CY2022	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2022	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2022	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2022	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2022	dei	Entity Filer Category EntityFilerCategory	Accelerated Filer
CY2022	dei	Entity Small Business EntitySmallBusiness	false
CY2022	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2022	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2022	dei	Entity Shell Company EntityShellCompany	false
CY2022Q2	dei	Entity Public Float EntityPublicFloat	637500000	usd
CY2023Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	30586938	shares
CY2022	dei	Auditor Firm AuditorFirmId	248
CY2022	dei	Auditor Name AuditorName	GRANT THORNTON LLP
CY2022	dei	Auditor Location AuditorLocation	Houston, Texas
CY2022	dei	Auditor Name AuditorName	GRANT THORNTON LLP
CY2022	dei	Auditor Location AuditorLocation	Houston, Texas
CY2022	dei	Auditor Location AuditorLocation	Houston, Texas
CY2022	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1769436000	usd
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1414374000	usd
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1226738000	usd
CY2022	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	1494869000	usd
CY2021	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	1210842000	usd
CY2020	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	1047108000	usd
CY2022	us-gaap	Gross Profit GrossProfit	274567000	usd
CY2021	us-gaap	Gross Profit GrossProfit	203532000	usd
CY2020	us-gaap	Gross Profit GrossProfit	179630000	usd
CY2022	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	86480000	usd
CY2021	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	69153000	usd
CY2020	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	64308000	usd
CY2022	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	14100000	usd
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	11464000	usd
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	11436000	usd
CY2022	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	827000	usd
CY2021	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	3877000	usd
CY2020	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	1026000	usd
CY2022	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	-13290000	usd
CY2021	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	-12027000	usd
CY2020	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	-10245000	usd
CY2022	us-gaap	Operating Income Loss OperatingIncomeLoss	159870000	usd
CY2021	us-gaap	Operating Income Loss OperatingIncomeLoss	107011000	usd
CY2020	us-gaap	Operating Income Loss OperatingIncomeLoss	92615000	usd
CY2022	us-gaap	Interest Income Other InterestIncomeOther	885000	usd
CY2021	us-gaap	Interest Income Other InterestIncomeOther	45000	usd
CY2020	us-gaap	Interest Income Other InterestIncomeOther	149000	usd
CY2022	strl	Interest Expense And Accreted Interest InterestExpenseAndAccretedInterest	20591000	usd
CY2021	strl	Interest Expense And Accreted Interest InterestExpenseAndAccretedInterest	19311000	usd
CY2020	strl	Interest Expense And Accreted Interest InterestExpenseAndAccretedInterest	29332000	usd
CY2022	strl	Gain Loss On Extinguishment Of Debt Continuing Operations GainLossOnExtinguishmentOfDebtContinuingOperations	0	usd
CY2021	strl	Gain Loss On Extinguishment Of Debt Continuing Operations GainLossOnExtinguishmentOfDebtContinuingOperations	1064000	usd
CY2020	strl	Gain Loss On Extinguishment Of Debt Continuing Operations GainLossOnExtinguishmentOfDebtContinuingOperations	-301000	usd
CY2022	strl	Income Before Income Taxes And Earnings Attributable To Noncontrolling Interests IncomeBeforeIncomeTaxesAndEarningsAttributableToNoncontrollingInterests	140164000	usd
CY2021	strl	Income Before Income Taxes And Earnings Attributable To Noncontrolling Interests IncomeBeforeIncomeTaxesAndEarningsAttributableToNoncontrollingInterests	88809000	usd
CY2020	strl	Income Before Income Taxes And Earnings Attributable To Noncontrolling Interests IncomeBeforeIncomeTaxesAndEarningsAttributableToNoncontrollingInterests	63131000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	41707000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	24874000	usd
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	19410000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	98457000	usd
CY2021	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	63935000	usd
CY2020	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	43721000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Attributable To Noncontrolling Entity IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity	1740000	usd
CY2021	us-gaap	Income Loss From Continuing Operations Attributable To Noncontrolling Entity IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity	2478000	usd
CY2020	us-gaap	Income Loss From Continuing Operations Attributable To Noncontrolling Entity IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity	598000	usd
CY2022	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	96717000	usd
CY2021	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	61457000	usd
CY2020	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	43123000	usd
CY2022	strl	Discontinued Operation Income Loss From Discontinued Operation Before Income Tax And Gain On Disposition DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTaxAndGainOnDisposition	-4848000	usd
CY2021	strl	Discontinued Operation Income Loss From Discontinued Operation Before Income Tax And Gain On Disposition DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTaxAndGainOnDisposition	1214000	usd
CY2020	strl	Discontinued Operation Income Loss From Discontinued Operation Before Income Tax And Gain On Disposition DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTaxAndGainOnDisposition	2244000	usd
CY2022	us-gaap	Discontinued Operation Gain Loss From Disposal Of Discontinued Operation Before Income Tax DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax	16687000	usd
CY2021	us-gaap	Discontinued Operation Gain Loss From Disposal Of Discontinued Operation Before Income Tax DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax	0	usd
CY2020	us-gaap	Discontinued Operation Gain Loss From Disposal Of Discontinued Operation Before Income Tax DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax	0	usd
CY2022	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	2095000	usd
CY2021	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	26000	usd
CY2020	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	3061000	usd
CY2022	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	9744000	usd
CY2021	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	1188000	usd
CY2020	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-817000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	106461000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	62645000	usd
CY2020	us-gaap	Net Income Loss NetIncomeLoss	42306000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	3.20
CY2021	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	2.15
CY2020	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	1.55
CY2022	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	3.16
CY2021	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	2.11
CY2020	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	1.53
CY2022	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Basic Share DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare	0.32
CY2021	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Basic Share DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare	0.04
CY2020	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Basic Share DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare	-0.03
CY2022	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Diluted Share DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare	0.32
CY2021	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Diluted Share DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare	0.04
CY2020	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Diluted Share DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare	-0.03
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.53
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.19
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.52
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.48
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.15
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.50
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	30199000	shares
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	28600000	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	27859000	shares
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	30564000	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	29101000	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	28195000	shares
CY2022	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	98457000	usd
CY2021	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	63935000	usd
CY2020	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	43721000	usd
CY2022	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	9744000	usd
CY2021	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	1188000	usd
CY2020	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-817000	usd
CY2022	us-gaap	Profit Loss ProfitLoss	108201000	usd
CY2021	us-gaap	Profit Loss ProfitLoss	65123000	usd
CY2020	us-gaap	Profit Loss ProfitLoss	42904000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	1723000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	3541000	usd
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-5055000	usd
CY2022	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	109924000	usd
CY2021	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	68664000	usd
CY2020	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	37849000	usd
CY2022	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	1740000	usd
CY2021	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	2478000	usd
CY2020	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	598000	usd
CY2022	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	108184000	usd
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	66186000	usd
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	37251000	usd
CY2022Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	181544000	usd
CY2021Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	60945000	usd
CY2022Q4	us-gaap	Receivables Long Term Contracts Or Programs ReceivablesLongTermContractsOrPrograms	262646000	usd
CY2021Q4	us-gaap	Receivables Long Term Contracts Or Programs ReceivablesLongTermContractsOrPrograms	200185000	usd
CY2022Q4	us-gaap	Capitalized Contract Cost Gross CapitalizedContractCostGross	109803000	usd
CY2021Q4	us-gaap	Capitalized Contract Cost Gross CapitalizedContractCostGross	75796000	usd
CY2022Q4	strl	Receivables From And Equity In Construction Joint Venture ReceivablesFromAndEquityInConstructionJointVenture	14122000	usd
CY2021Q4	strl	Receivables From And Equity In Construction Joint Venture ReceivablesFromAndEquityInConstructionJointVenture	9839000	usd
CY2022Q4	us-gaap	Assets Of Disposal Group Including Discontinued Operation Current AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent	0	usd
CY2021Q4	us-gaap	Assets Of Disposal Group Including Discontinued Operation Current AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent	71886000	usd
CY2022Q4	us-gaap	Other Assets Current OtherAssetsCurrent	29139000	usd
CY2021Q4	us-gaap	Other Assets Current OtherAssetsCurrent	16040000	usd
CY2022Q4	us-gaap	Assets Current AssetsCurrent	597254000	usd
CY2021Q4	us-gaap	Assets Current AssetsCurrent	434691000	usd
CY2022Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	215482000	usd
CY2021Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	193896000	usd
CY2022Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	59415000	usd
CY2021Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	19473000	usd
CY2022Q4	us-gaap	Goodwill Goodwill	262692000	usd
CY2021Q4	us-gaap	Goodwill Goodwill	258290000	usd
CY2022Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	299123000	usd
CY2021Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	303223000	usd
CY2022Q4	us-gaap	Disposal Group Including Discontinued Operation Assets Noncurrent DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent	0	usd
CY2021Q4	us-gaap	Disposal Group Including Discontinued Operation Assets Noncurrent DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent	20746000	usd
CY2022Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	7654000	usd
CY2021Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	4455000	usd
CY2022Q4	us-gaap	Assets Assets	1441620000	usd
CY2021Q4	us-gaap	Assets Assets	1234774000	usd
CY2022Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	121887000	usd
CY2021Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	112746000	usd
CY2022Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	239297000	usd
CY2021Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	118672000	usd
CY2022Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	32610000	usd
CY2021Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	23373000	usd
CY2022Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	19715000	usd
CY2021Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	6557000	usd
CY2022Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	24136000	usd
CY2021Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	20415000	usd
CY2022Q4	us-gaap	Liabilities Of Disposal Group Including Discontinued Operation Current LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent	0	usd
CY2021Q4	us-gaap	Liabilities Of Disposal Group Including Discontinued Operation Current LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent	51914000	usd
CY2022Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	8966000	usd
CY2021Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	18083000	usd
CY2022Q4	us-gaap	Liabilities Current LiabilitiesCurrent	446611000	usd
CY2021Q4	us-gaap	Liabilities Current LiabilitiesCurrent	351760000	usd
CY2022Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	398735000	usd
CY2021Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	428507000	usd
CY2022Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	40103000	usd
CY2021Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	13068000	usd
CY2022Q4	strl	Members Interest Subject To Mandatory Redemption And Undistributed Earnings MembersInterestSubjectToMandatoryRedemptionAndUndistributedEarnings	21597000	usd
CY2021Q4	strl	Members Interest Subject To Mandatory Redemption And Undistributed Earnings MembersInterestSubjectToMandatoryRedemptionAndUndistributedEarnings	19322000	usd
CY2022Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	51659000	usd
CY2021Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	18434000	usd
CY2022Q4	us-gaap	Liabilities Of Disposal Group Including Discontinued Operation Noncurrent LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent	0	usd
CY2021Q4	us-gaap	Liabilities Of Disposal Group Including Discontinued Operation Noncurrent LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent	38637000	usd
CY2022Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	5116000	usd
CY2021Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	4819000	usd
CY2022Q4	us-gaap	Liabilities Liabilities	963821000	usd
CY2021Q4	us-gaap	Liabilities Liabilities	874547000	usd
CY2022Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2021Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2022Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2021Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2021Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	38000000	shares
CY2022Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	38000000	shares
CY2022Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	30585000	shares
CY2022Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	30585000	shares
CY2021Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	29838000	shares
CY2021Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	29838000	shares
CY2022Q4	us-gaap	Common Stock Value CommonStockValue	306000	usd
CY2021Q4	us-gaap	Common Stock Value CommonStockValue	298000	usd
CY2022Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	287914000	usd
CY2021Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	280274000	usd
CY2022Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	186379000	usd
CY2021Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	79918000	usd
CY2022Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	0	usd
CY2021Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-1723000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	474599000	usd
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	358767000	usd
CY2022Q4	us-gaap	Minority Interest MinorityInterest	3200000	usd
CY2021Q4	us-gaap	Minority Interest MinorityInterest	1460000	usd
CY2022Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	477799000	usd
CY2021Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	360227000	usd
CY2022Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1441620000	usd
CY2021Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1234774000	usd
CY2022	us-gaap	Profit Loss ProfitLoss	108201000	usd
CY2021	us-gaap	Profit Loss ProfitLoss	65123000	usd
CY2020	us-gaap	Profit Loss ProfitLoss	42904000	usd
CY2022	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	52066000	usd
CY2021	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	34201000	usd
CY2020	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	32785000	usd
CY2022	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	2136000	usd
CY2021	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	2242000	usd
CY2020	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	3193000	usd
CY2022	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	2637000	usd
CY2021	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	1396000	usd
CY2020	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	1495000	usd
CY2022	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	2428000	usd
CY2021	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	2032000	usd
CY2020	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-301000	usd
CY2022	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	16687000	usd
CY2021	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	0	usd
CY2020	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	0	usd
CY2022	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	36492000	usd
CY2021	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	21428000	usd
CY2020	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	19439000	usd
CY2022	us-gaap	Share Based Compensation ShareBasedCompensation	12726000	usd
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	11771000	usd
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	11643000	usd
CY2022	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	203000	usd
CY2021	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	32000	usd
CY2020	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	-265000	usd
CY2022	us-gaap	Increase Decrease In Operating Capital IncreaseDecreaseInOperatingCapital	-29450000	usd
CY2021	us-gaap	Increase Decrease In Operating Capital IncreaseDecreaseInOperatingCapital	-27627000	usd
CY2020	us-gaap	Increase Decrease In Operating Capital IncreaseDecreaseInOperatingCapital	-13861000	usd
CY2022	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	219116000	usd
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	158932000	usd
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	122896000	usd
CY2022	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	18004000	usd
CY2021	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	180911000	usd
CY2020	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	usd
CY2022	us-gaap	Proceeds From Divestiture Of Businesses Net Of Cash Divested ProceedsFromDivestitureOfBusinessesNetOfCashDivested	-15789000	usd
CY2021	us-gaap	Proceeds From Divestiture Of Businesses Net Of Cash Divested ProceedsFromDivestitureOfBusinessesNetOfCashDivested	0	usd
CY2020	us-gaap	Proceeds From Divestiture Of Businesses Net Of Cash Divested ProceedsFromDivestitureOfBusinessesNetOfCashDivested	0	usd
CY2022	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	60909000	usd
CY2021	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	46651000	usd
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	32864000	usd
CY2022	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	4947000	usd
CY2021	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	4113000	usd
CY2020	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	2373000	usd
CY2022	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-89755000	usd
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-223449000	usd
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-30491000	usd
CY2022	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	0	usd
CY2021	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	140000000	usd
CY2020	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	0	usd
CY2022	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	23373000	usd
CY2021	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	48273000	usd
CY2020	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	77745000	usd
CY2022	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	0	usd
CY2021	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	2477000	usd
CY2020	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	432000	usd
CY2022	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	9416000	usd
CY2021	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	7338000	usd
CY2020	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	1985000	usd
CY2022	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	0	usd
CY2021	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	1340000	usd
CY2020	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	0	usd
CY2022	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	0	usd
CY2021	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-4000	usd
CY2020	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	9837000	usd
CY2022	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-32789000	usd
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	80568000	usd
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-70325000	usd
CY2022	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	96572000	usd
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	16051000	usd
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	22080000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	88693000	usd
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	72642000	usd
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	50562000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	185265000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	88693000	usd
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	72642000	usd
CY2022Q4	strl	Restricted Cash Other Current Assets Disposal Group Including Continued Operations RestrictedCashOtherCurrentAssetsDisposalGroupIncludingContinuedOperations	3721000	usd
CY2021Q4	strl	Restricted Cash Other Current Assets Disposal Group Including Continued Operations RestrictedCashOtherCurrentAssetsDisposalGroupIncludingContinuedOperations	3821000	usd
CY2020Q4	strl	Restricted Cash Other Current Assets Disposal Group Including Continued Operations RestrictedCashOtherCurrentAssetsDisposalGroupIncludingContinuedOperations	4571000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Disposal Group Including Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsDisposalGroupIncludingDiscontinuedOperations	0	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Disposal Group Including Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsDisposalGroupIncludingDiscontinuedOperations	23927000	usd
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Disposal Group Including Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsDisposalGroupIncludingDiscontinuedOperations	20415000	usd
CY2022Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	181544000	usd
CY2021Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	60945000	usd
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	47656000	usd
CY2022	us-gaap	Interest Paid Net InterestPaidNet	19322000	usd
CY2021	us-gaap	Interest Paid Net InterestPaidNet	17236000	usd
CY2020	us-gaap	Interest Paid Net InterestPaidNet	26941000	usd
CY2022	us-gaap	Income Taxes Paid IncomeTaxesPaid	5602000	usd
CY2021	us-gaap	Income Taxes Paid IncomeTaxesPaid	3061000	usd
CY2020	us-gaap	Income Taxes Paid IncomeTaxesPaid	4745000	usd
CY2022	us-gaap	Business Combination Consideration Transferred Equity Interests Issued And Issuable BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable	4851000	usd
CY2021	us-gaap	Business Combination Consideration Transferred Equity Interests Issued And Issuable BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable	20406000	usd
CY2020	us-gaap	Business Combination Consideration Transferred Equity Interests Issued And Issuable BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable	0	usd
CY2022	strl	Noncash Or Part Noncash Acquisition Notes Payable And Deferred Payments Incurred NoncashOrPartNoncashAcquisitionNotesPayableAndDeferredPaymentsIncurred	18000000	usd
CY2021	strl	Noncash Or Part Noncash Acquisition Notes Payable And Deferred Payments Incurred NoncashOrPartNoncashAcquisitionNotesPayableAndDeferredPaymentsIncurred	0	usd
CY2020	strl	Noncash Or Part Noncash Acquisition Notes Payable And Deferred Payments Incurred NoncashOrPartNoncashAcquisitionNotesPayableAndDeferredPaymentsIncurred	0	usd
CY2022	strl	Business Combination Consideration Transferred Tax Gross Up Payment And Other Payments Due To Sellers BusinessCombinationConsiderationTransferredTaxGrossUpPaymentAndOtherPaymentsDueToSellers	0	usd
CY2021	strl	Business Combination Consideration Transferred Tax Gross Up Payment And Other Payments Due To Sellers BusinessCombinationConsiderationTransferredTaxGrossUpPaymentAndOtherPaymentsDueToSellers	10833000	usd
CY2020	strl	Business Combination Consideration Transferred Tax Gross Up Payment And Other Payments Due To Sellers BusinessCombinationConsiderationTransferredTaxGrossUpPaymentAndOtherPaymentsDueToSellers	0	usd
CY2022	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	1925000	usd
CY2021	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	264000	usd
CY2020	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	0	usd
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	221211000	usd
CY2020	us-gaap	Profit Loss ProfitLoss	42904000	usd
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-5055000	usd
CY2020	us-gaap	Stock Issued During Period Value Share Based Compensation Gross StockIssuedDuringPeriodValueShareBasedCompensationGross	11643000	usd
CY2020	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	432000	usd
CY2020	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	530000	usd
CY2020	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	1985000	usd
CY2020	us-gaap	Adjustments To Additional Paid In Capital Other AdjustmentsToAdditionalPaidInCapitalOther	-87000	usd
CY2020Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	268729000	usd
CY2021	us-gaap	Profit Loss ProfitLoss	65123000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	3541000	usd
CY2021	us-gaap	Stock Issued During Period Value Share Based Compensation Gross StockIssuedDuringPeriodValueShareBasedCompensationGross	11771000	usd
CY2021	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	2477000	usd
CY2021	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	20406000	usd
CY2021	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	475000	usd
CY2021	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	7338000	usd
CY2021	us-gaap	Adjustments To Additional Paid In Capital Other AdjustmentsToAdditionalPaidInCapitalOther	-3000	usd
CY2021Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	360227000	usd
CY2022	us-gaap	Profit Loss ProfitLoss	108201000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	1723000	usd
CY2022	us-gaap	Stock Issued During Period Value Share Based Compensation Gross StockIssuedDuringPeriodValueShareBasedCompensationGross	11526000	usd
CY2022	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	4851000	usd
CY2022	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	687000	usd
CY2022	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	9416000	usd
CY2022Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	477799000	usd
CY2022	us-gaap	Nature Of Operations NatureOfOperations	<div style="margin-bottom:4pt;margin-top:9pt"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:60.672%"><tr><td style="width:1.0%"/><td style="width:5.406%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:92.394%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">1.</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">NATURE OF OPERATIONS</span></td></tr></table></div><div style="margin-bottom:9pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Business Summary</span></div><div style="margin-bottom:9pt;text-align:justify;text-indent:18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Sterling Infrastructure, Inc., (“Sterling,” “the Company,” “we,” “our” or “us”), a Delaware corporation, operates through a variety of subsidiaries within three segments specializing in E-Infrastructure, Transportation and Building Solutions in the United States (the “U.S.”), primarily across the Southern, Northeastern and Mid-Atlantic U.S., the Rocky Mountain States, and Hawaii, as well as other areas with strategic construction opportunities. E-Infrastructure Solutions projects include advanced, large-scale site development systems and services for data centers, e-commerce distribution centers, warehousing, transportation, energy and more. Transportation Solutions includes infrastructure and rehabilitation projects for highways, roads, bridges, airports, ports, light rail and storm drainage systems. Building Solutions projects include residential and commercial concrete foundations for single-family and multi-family homes, parking structures, elevated slabs and other concrete work. From strategy to operations, we are committed to sustainability by operating responsibly to safeguard and improve society’s quality of life. Caring for our people and our communities, our customers and our investors – that is The Sterling Way.</span></div><div style="margin-bottom:9pt;text-align:justify;text-indent:18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">On November 30, 2022, we completed the disposition of our 50% ownership interest in our partnership with Myers & Sons Construction L.P. (“Myers”), which represented a strategic shift that had a major effect on our operations and consolidated financial results. Accordingly, the historical results of Myers have been presented as discontinued operations in our Consolidated Statements of Operations and Consolidated Balance Sheets. Prior to being disclosed as a discontinued operation, the results of Myers were included within our Transportation Solutions segment. The following footnotes reflect continuing operations only, unless otherwise indicated.</span></div>
CY2022	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	3	segment
CY2022Q4	strl	Consolidated Entities Ownership Percentage ConsolidatedEntitiesOwnershipPercentage	0.50
CY2022Q4	strl	Consolidated Entities Ownership Percentage ConsolidatedEntitiesOwnershipPercentage	0.50
CY2022	us-gaap	Use Of Estimates UseOfEstimates	<span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Estimates and Judgments—</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The preparation of the accompanying Consolidated Financial Statements in conformance with GAAP requires management to make estimates and judgments that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Certain accounting estimates of the Company require a higher degree of judgment than others in their application. These include the recognition of revenue and earnings from construction contracts over time, the valuation of long-lived assets, goodwill and purchase accounting estimates. Management continually evaluates all of its estimates and judgments based on available information and experience; however, actual results could differ from these estimates.</span>
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CY2021Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	0	usd
CY2022Q4	strl	Contract With Customer Retainage Asset Current ContractWithCustomerRetainageAssetCurrent	65682000	usd
CY2021Q4	strl	Contract With Customer Retainage Asset Current ContractWithCustomerRetainageAssetCurrent	43767000	usd
CY2022Q4	strl	Contract With Customer Retainage Liability Current ContractWithCustomerRetainageLiabilityCurrent	63848000	usd
CY2021Q4	strl	Contract With Customer Retainage Liability Current ContractWithCustomerRetainageLiabilityCurrent	45639000	usd
CY2022Q4	strl	Contracts Receivable Retainage Percentage Estimated To Be Collected In Next Fiscal Year ContractsReceivableRetainagePercentageEstimatedToBeCollectedInNextFiscalYear	0.70
CY2022	strl	Increase Decrease In Contract With Customer Retainage Asset IncreaseDecreaseInContractWithCustomerRetainageAsset	34007000	usd
CY2021	strl	Increase Decrease In Contract With Customer Retainage Liability IncreaseDecreaseInContractWithCustomerRetainageLiability	120625000	usd
CY2021	strl	Contract With Customer Liability Revenue Recognized During The Period ContractWithCustomerLiabilityRevenueRecognizedDuringThePeriod	95883000	usd
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CY2022Q4	strl	Consolidated Entities Ownership Percentage ConsolidatedEntitiesOwnershipPercentage	0.50
CY2022Q4	strl	Consolidated Entities Ownership Percentage ConsolidatedEntitiesOwnershipPercentage	0.50
CY2022Q4	strl	Consolidated Entities Ownership Percentage ConsolidatedEntitiesOwnershipPercentage	0.50
CY2022Q4	us-gaap	Restricted Cash RestrictedCash	3721000	usd
CY2021Q4	us-gaap	Restricted Cash RestrictedCash	3821000	usd
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CY2021	us-gaap	Cash Provided By Used In Operating Activities Discontinued Operations CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations	11384000	usd
CY2020	us-gaap	Cash Provided By Used In Operating Activities Discontinued Operations CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations	10313000	usd
CY2022	us-gaap	Cash Provided By Used In Investing Activities Discontinued Operations CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations	-723000	usd
CY2021	us-gaap	Cash Provided By Used In Investing Activities Discontinued Operations CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations	-5964000	usd
CY2020	us-gaap	Cash Provided By Used In Investing Activities Discontinued Operations CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations	-1908000	usd
CY2022	us-gaap	Cash Provided By Used In Financing Activities Discontinued Operations CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations	-81000	usd
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CY2020	us-gaap	Cash Provided By Used In Financing Activities Discontinued Operations CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations	6805000	usd
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CY2022Q4	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P12M
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CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1414374000	usd
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1226738000	usd
CY2022	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1769436000	usd
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1414374000	usd
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1226738000	usd
CY2022Q4	strl	Consolidated Entities Ownership Percentage ConsolidatedEntitiesOwnershipPercentage	0.50
CY2022Q4	strl	Consolidated Entities Ownership Percentage ConsolidatedEntitiesOwnershipPercentage	0.50
CY2022Q4	strl	Death And Disability Insurance Policies Per Policy Amount DeathAndDisabilityInsurancePoliciesPerPolicyAmount	20000000	usd
CY2022Q4	strl	Members Interest Subject To Mandatory Redemption MembersInterestSubjectToMandatoryRedemption	20000000	usd
CY2021Q4	strl	Members Interest Subject To Mandatory Redemption MembersInterestSubjectToMandatoryRedemption	20000000	usd
CY2022Q4	strl	Undistributed Earnings Of Domestic Subsidiaries Net UndistributedEarningsOfDomesticSubsidiariesNet	1597000	usd
CY2021Q4	strl	Undistributed Earnings Of Domestic Subsidiaries Net UndistributedEarningsOfDomesticSubsidiariesNet	-678000	usd
CY2022Q4	strl	Members Interest Subject To Mandatory Redemption And Undistributed Earnings MembersInterestSubjectToMandatoryRedemptionAndUndistributedEarnings	21597000	usd
CY2021Q4	strl	Members Interest Subject To Mandatory Redemption And Undistributed Earnings MembersInterestSubjectToMandatoryRedemptionAndUndistributedEarnings	19322000	usd
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CY2021Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	128415000	usd
CY2022Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	215482000	usd
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CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	18256000	usd
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CY2022Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	224000	usd
CY2022	strl	Self Insurance General Liability Amount Per Occurrence SelfInsuranceGeneralLiabilityAmountPerOccurrence	5900000	usd
CY2022Q4	strl	Commercial Insurance Coverage CommercialInsuranceCoverage	75000000	usd
CY2022Q4	strl	Consolidated Entities Ownership Percentage ConsolidatedEntitiesOwnershipPercentage	0.50
CY2022	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	9221000	usd
CY2021	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	3512000	usd
CY2020	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	3033000	usd
CY2022	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	32486000	usd
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	21362000	usd
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	16377000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	41707000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	24874000	usd
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	19410000	usd
CY2022	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	29435000	usd
CY2022	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2021	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	18650000	usd
CY2021	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2020	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	13258000	usd
CY2020	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2022	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	11064000	usd
CY2022	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.079
CY2021	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	5579000	usd
CY2021	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.063
CY2020	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	4840000	usd
CY2020	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.077
CY2022	us-gaap	Income Tax Reconciliation Equity In Earnings Losses Of Unconsolidated Subsidiary IncomeTaxReconciliationEquityInEarningsLossesOfUnconsolidatedSubsidiary	366000	usd
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Equity In Earnings Losses Of Unconsolidated Subsidiary EffectiveIncomeTaxRateReconciliationEquityInEarningsLossesOfUnconsolidatedSubsidiary	0.003
CY2021	us-gaap	Income Tax Reconciliation Equity In Earnings Losses Of Unconsolidated Subsidiary IncomeTaxReconciliationEquityInEarningsLossesOfUnconsolidatedSubsidiary	521000	usd
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Equity In Earnings Losses Of Unconsolidated Subsidiary EffectiveIncomeTaxRateReconciliationEquityInEarningsLossesOfUnconsolidatedSubsidiary	0.006
CY2020	us-gaap	Income Tax Reconciliation Equity In Earnings Losses Of Unconsolidated Subsidiary IncomeTaxReconciliationEquityInEarningsLossesOfUnconsolidatedSubsidiary	130000	usd
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Equity In Earnings Losses Of Unconsolidated Subsidiary EffectiveIncomeTaxRateReconciliationEquityInEarningsLossesOfUnconsolidatedSubsidiary	0.002
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Amount EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount	1366000	usd
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Percent EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitPercent	0.010
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Amount EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount	1698000	usd
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Percent EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitPercent	0.019
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Amount EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount	1881000	usd
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Percent EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitPercent	0.030
CY2022	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	208000	usd
CY2022	strl	Effective Income Tax Rate Reconciliation Other Permanent Differences EffectiveIncomeTaxRateReconciliationOtherPermanentDifferences	0.001
CY2021	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-532000	usd
CY2021	strl	Effective Income Tax Rate Reconciliation Other Permanent Differences EffectiveIncomeTaxRateReconciliationOtherPermanentDifferences	-0.006
CY2020	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-439000	usd
CY2020	strl	Effective Income Tax Rate Reconciliation Other Permanent Differences EffectiveIncomeTaxRateReconciliationOtherPermanentDifferences	-0.007
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	41707000	usd
CY2022	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.298
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	24874000	usd
CY2021	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.280
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	19410000	usd
CY2020	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.307
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits	3287000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits	5237000	usd
CY2022Q4	strl	Deferred Tax Assets Noncontrolling Interest DeferredTaxAssetsNoncontrollingInterest	2642000	usd
CY2021Q4	strl	Deferred Tax Assets Noncontrolling Interest DeferredTaxAssetsNoncontrollingInterest	2030000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Contingencies DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsContingencies	4783000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Contingencies DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsContingencies	4604000	usd
CY2022Q4	strl	Deferred Tax Assets Right Of Use Liability DeferredTaxAssetsRightOfUseLiability	15259000	usd
CY2021Q4	strl	Deferred Tax Assets Right Of Use Liability DeferredTaxAssetsRightOfUseLiability	4600000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Derivative Instruments DeferredTaxAssetsDerivativeInstruments	0	usd
CY2021Q4	us-gaap	Deferred Tax Assets Derivative Instruments DeferredTaxAssetsDerivativeInstruments	515000	usd
CY2022Q4	strl	Deferred Tax Assets Deferred Payments DeferredTaxAssetsDeferredPayments	23000	usd
CY2021Q4	strl	Deferred Tax Assets Deferred Payments DeferredTaxAssetsDeferredPayments	960000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	1320000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	8955000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	27314000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	26901000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	40770000	usd
CY2021Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	25775000	usd
CY2022Q4	strl	Deferred Tax Liabilities Right Of Use Asset DeferredTaxLiabilitiesRightOfUseAsset	15157000	usd
CY2021Q4	strl	Deferred Tax Liabilities Right Of Use Asset DeferredTaxLiabilitiesRightOfUseAsset	4565000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Goodwill DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsGoodwill	16047000	usd
CY2021Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Goodwill DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsGoodwill	10493000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	6999000	usd
CY2021Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	4502000	usd
CY2022Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	78973000	usd
CY2021Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	45335000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	51659000	usd
CY2021Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	18434000	usd
CY2021	strl	Class Of Warrant Or Right Number Of Warrants Exercised ClassOfWarrantOrRightNumberOfWarrantsExercised	530000	shares
CY2021	strl	Stock Issued During Period Shares Warrants Exercised StockIssuedDuringPeriodSharesWarrantsExercised	315000	shares
CY2021	strl	Stock Issued During Period Value Warrants Exercised StockIssuedDuringPeriodValueWarrantsExercised	8082000	usd
CY2020	strl	Class Of Warrant Or Right Number Of Warrants Exercised ClassOfWarrantOrRightNumberOfWarrantsExercised	470000	shares
CY2020	strl	Stock Issued During Period Shares Warrants Exercised StockIssuedDuringPeriodSharesWarrantsExercised	110000	shares
CY2020	strl	Stock Issued During Period Value Warrants Exercised StockIssuedDuringPeriodValueWarrantsExercised	1477000	usd
CY2021Q4	us-gaap	Class Of Warrant Or Right Outstanding ClassOfWarrantOrRightOutstanding	0	shares
CY2022	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	96717000	usd
CY2021	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	61457000	usd
CY2020	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	43123000	usd
CY2022	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	9744000	usd
CY2021	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	1188000	usd
CY2020	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	-817000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	106461000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	62645000	usd
CY2020	us-gaap	Net Income Loss NetIncomeLoss	42306000	usd
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	30199000	shares
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	28600000	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	27859000	shares
CY2022	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	365000	shares
CY2021	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	501000	shares
CY2020	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	336000	shares
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	30564000	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	29101000	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	28195000	shares
CY2022	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	3.20
CY2021	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	2.15
CY2020	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	1.55
CY2022	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	3.16
CY2021	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	2.11
CY2020	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	1.53
CY2022	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Basic Share DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare	0.32
CY2021	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Basic Share DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare	0.04
CY2020	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Basic Share DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare	-0.03
CY2022	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Diluted Share DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare	0.32
CY2021	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Diluted Share DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare	0.04
CY2020	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Diluted Share DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare	-0.03
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.53
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.19
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.52
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.48
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.15
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.50
CY2022	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	3029000	usd
CY2021	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	3147000	usd
CY2020	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	2630000	usd
CY2022Q4	dei	Entity Number Of Employees EntityNumberOfEmployees	3200	employee
CY2022Q4	strl	Entity Numberof Employees Field Personnel EntityNumberofEmployeesFieldPersonnel	2500	employee
CY2022	us-gaap	Multiemployer Plan Employer Contribution Cost MultiemployerPlanEmployerContributionCost	18847000	usd
CY2021	us-gaap	Multiemployer Plan Employer Contribution Cost MultiemployerPlanEmployerContributionCost	14905000	usd
CY2020	us-gaap	Multiemployer Plan Employer Contribution Cost MultiemployerPlanEmployerContributionCost	14980000	usd
CY2022	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	-63285000	usd
CY2021	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	-8300000	usd
CY2020	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	-8552000	usd
CY2022	us-gaap	Increase Decrease In Contract With Customer Asset IncreaseDecreaseInContractWithCustomerAsset	-77692000	usd
CY2021	us-gaap	Increase Decrease In Contract With Customer Asset IncreaseDecreaseInContractWithCustomerAsset	-12906000	usd
CY2020	us-gaap	Increase Decrease In Contract With Customer Asset IncreaseDecreaseInContractWithCustomerAsset	-65963000	usd
CY2022	strl	Increase Decrease In Receivables From And Equity In Construction Joint Ventures IncreaseDecreaseInReceivablesFromAndEquityInConstructionJointVentures	5034000	usd
CY2021	strl	Increase Decrease In Receivables From And Equity In Construction Joint Ventures IncreaseDecreaseInReceivablesFromAndEquityInConstructionJointVentures	243000	usd
CY2020	strl	Increase Decrease In Receivables From And Equity In Construction Joint Ventures IncreaseDecreaseInReceivablesFromAndEquityInConstructionJointVentures	7457000	usd
CY2022	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-1849000	usd
CY2021	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	4533000	usd
CY2020	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	6233000	usd
CY2022	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	11888000	usd
CY2021	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	26605000	usd
CY2020	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-42392000	usd
CY2022	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	7224000	usd
CY2021	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	-170000	usd
CY2020	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	10245000	usd
CY2022	strl	Increase Decrease In Members Interest Subject To Mandatory Redemption And Undistributed Earnings IncreaseDecreaseInMembersInterestSubjectToMandatoryRedemptionAndUndistributedEarnings	-884000	usd
CY2021	strl	Increase Decrease In Members Interest Subject To Mandatory Redemption And Undistributed Earnings IncreaseDecreaseInMembersInterestSubjectToMandatoryRedemptionAndUndistributedEarnings	1362000	usd
CY2020	strl	Increase Decrease In Members Interest Subject To Mandatory Redemption And Undistributed Earnings IncreaseDecreaseInMembersInterestSubjectToMandatoryRedemptionAndUndistributedEarnings	2287000	usd
CY2022	us-gaap	Increase Decrease In Operating Capital IncreaseDecreaseInOperatingCapital	-29450000	usd
CY2021	us-gaap	Increase Decrease In Operating Capital IncreaseDecreaseInOperatingCapital	-27627000	usd
CY2020	us-gaap	Increase Decrease In Operating Capital IncreaseDecreaseInOperatingCapital	-13861000	usd
CY2022	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	3	segment
CY2022	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1769436000	usd
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1414374000	usd
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1226738000	usd
CY2022	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	827000	usd
CY2021	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	3877000	usd
CY2020	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	1026000	usd
CY2022	us-gaap	Operating Income Loss OperatingIncomeLoss	159870000	usd
CY2021	us-gaap	Operating Income Loss OperatingIncomeLoss	107011000	usd
CY2020	us-gaap	Operating Income Loss OperatingIncomeLoss	92615000	usd
CY2022Q4	us-gaap	Assets Assets	1441620000	usd
CY2021Q4	us-gaap	Assets Assets	1234774000	usd
CY2022Q1	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	255000	usd
CY2022Q2	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	230000	usd
CY2022Q3	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	77000	usd
CY2022Q4	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	265000	usd
CY2022	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	827000	usd
CY2022Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	29363000	usd
CY2022Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	43989000	usd
CY2022Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	49475000	usd
CY2022Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	37043000	usd
CY2022	us-gaap	Operating Income Loss OperatingIncomeLoss	159870000	usd
CY2021Q1	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	0	usd
CY2021Q2	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	0	usd
CY2021Q3	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	0	usd
CY2021Q4	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	3877000	usd
CY2021	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	3877000	usd
CY2021Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	22429000	usd
CY2021Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	32514000	usd
CY2021Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	32010000	usd
CY2021Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	20058000	usd
CY2021	us-gaap	Operating Income Loss OperatingIncomeLoss	107011000	usd
CY2020Q1	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	473000	usd
CY2020Q2	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	139000	usd
CY2020Q3	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	401000	usd
CY2020Q4	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	13000	usd
CY2020	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	1026000	usd
CY2020Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	12013000	usd
CY2020Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	32534000	usd
CY2020Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	27887000	usd
CY2020Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	20181000	usd
CY2020	us-gaap	Operating Income Loss OperatingIncomeLoss	92615000	usd
CY2022Q1	us-gaap	Gross Profit GrossProfit	55149000	usd
CY2022Q2	us-gaap	Gross Profit GrossProfit	71008000	usd
CY2022Q3	us-gaap	Gross Profit GrossProfit	79444000	usd
CY2022Q4	us-gaap	Gross Profit GrossProfit	68966000	usd
CY2022Q1	strl	Income Before Income Taxes And Earnings Attributable To Noncontrolling Interests IncomeBeforeIncomeTaxesAndEarningsAttributableToNoncontrollingInterests	24721000	usd
CY2022Q2	strl	Income Before Income Taxes And Earnings Attributable To Noncontrolling Interests IncomeBeforeIncomeTaxesAndEarningsAttributableToNoncontrollingInterests	39540000	usd
CY2022Q3	strl	Income Before Income Taxes And Earnings Attributable To Noncontrolling Interests IncomeBeforeIncomeTaxesAndEarningsAttributableToNoncontrollingInterests	44505000	usd
CY2022Q4	strl	Income Before Income Taxes And Earnings Attributable To Noncontrolling Interests IncomeBeforeIncomeTaxesAndEarningsAttributableToNoncontrollingInterests	31398000	usd
CY2021Q1	us-gaap	Gross Profit GrossProfit	42479000	usd
CY2021Q2	us-gaap	Gross Profit GrossProfit	53663000	usd
CY2021Q3	us-gaap	Gross Profit GrossProfit	54878000	usd
CY2021Q4	us-gaap	Gross Profit GrossProfit	52512000	usd
CY2021Q1	strl	Income Before Income Taxes And Earnings Attributable To Noncontrolling Interests IncomeBeforeIncomeTaxesAndEarningsAttributableToNoncontrollingInterests	16117000	usd
CY2021Q2	strl	Income Before Income Taxes And Earnings Attributable To Noncontrolling Interests IncomeBeforeIncomeTaxesAndEarningsAttributableToNoncontrollingInterests	28206000	usd
CY2021Q3	strl	Income Before Income Taxes And Earnings Attributable To Noncontrolling Interests IncomeBeforeIncomeTaxesAndEarningsAttributableToNoncontrollingInterests	28091000	usd
CY2021Q4	strl	Income Before Income Taxes And Earnings Attributable To Noncontrolling Interests IncomeBeforeIncomeTaxesAndEarningsAttributableToNoncontrollingInterests	16395000	usd
CY2020Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	345674000	usd
CY2020Q1	us-gaap	Gross Profit GrossProfit	33535000	usd
CY2020Q2	us-gaap	Gross Profit GrossProfit	56831000	usd
CY2020Q3	us-gaap	Gross Profit GrossProfit	46297000	usd
CY2020Q4	us-gaap	Gross Profit GrossProfit	42967000	usd
CY2020Q1	strl	Income Before Income Taxes And Earnings Attributable To Noncontrolling Interests IncomeBeforeIncomeTaxesAndEarningsAttributableToNoncontrollingInterests	4306000	usd
CY2020Q2	strl	Income Before Income Taxes And Earnings Attributable To Noncontrolling Interests IncomeBeforeIncomeTaxesAndEarningsAttributableToNoncontrollingInterests	24999000	usd
CY2020Q3	strl	Income Before Income Taxes And Earnings Attributable To Noncontrolling Interests IncomeBeforeIncomeTaxesAndEarningsAttributableToNoncontrollingInterests	20757000	usd
CY2020Q4	strl	Income Before Income Taxes And Earnings Attributable To Noncontrolling Interests IncomeBeforeIncomeTaxesAndEarningsAttributableToNoncontrollingInterests	13069000	usd

Files In Submission

Name	View Source	Status
0000874238-23-000023-index-headers.html	Edgar Link	pending
0000874238-23-000023-index.html	Edgar Link	pending
0000874238-23-000023.txt	Edgar Link	pending
0000874238-23-000023-xbrl.zip	Edgar Link	pending
a2022123110-kexhibit211.htm	Edgar Link	pending
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a2022123110-kexhibt1031.htm	Edgar Link	pending
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strl-20221231.htm	Edgar Link	pending
strl-20221231.xsd	Edgar Link	pending
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strl-20221231_g2.jpg	Edgar Link	pending
strl-20221231_cal.xml	Edgar Link	unprocessable
strl-20221231_def.xml	Edgar Link	unprocessable
strl-20221231_lab.xml	Edgar Link	unprocessable
strl-20221231_pre.xml	Edgar Link	unprocessable
strl-20221231_htm.xml	Edgar Link	completed

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$STRL
STERLING INFRASTRUCTURE, INC. Stock $strl

2023 Q1 Form 10-K Financial Statement

#000087423823000023 Filed on February 28, 2023

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$STRL STERLING INFRASTRUCTURE, INC. Stock $strl

2023 Q1 Form 10-K Financial Statement

#000087423823000023 Filed on February 28, 2023

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$STRL
STERLING INFRASTRUCTURE, INC. Stock $strl