10-K Filing

STERLING INFRASTRUCTURE, INC. CIK: 874238 FY 2018

Filing Information

Form Type	10-K
Accession Number	`0000874238-19-000044`
Period End Date	20181231
Filing Date	20190305
Fiscal Year	2018
Fiscal Period	FY
XBRL Instance	strl-20181231.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 86 Income Statement 102 Cash Flow Statement 129 Stockholders Equity 25 Comprehensive Income 17

Balance Sheet 86 line items

Line Item	Tag	Value	Unit	Period
Preferred stock, par value (in dollars per share)	`PreferredStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Preferred stock, par value (in dollars per share)	`PreferredStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Preferred stock, shares authorized (in shares)	`PreferredStockSharesAuthorized`	1.00M	shares	Point-in-time
Preferred stock, shares authorized (in shares)	`PreferredStockSharesAuthorized`	1.00M	shares	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$94.09M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$42.78M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$83.95M	USD	Point-in-time
Preferred stock, shares issued (in shares)	`PreferredStockSharesIssued`	0.00	shares	Point-in-time
Preferred stock, shares issued (in shares)	`PreferredStockSharesIssued`	0.00	shares	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$4.43M	USD	Point-in-time
Receivables, including retainage	`ReceivablesLongTermContractsOrPrograms`	$145.03M	USD	Point-in-time
Common stock, par value (in dollars per share)	`CommonStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Receivables, including retainage	`ReceivablesLongTermContractsOrPrograms`	$133.93M	USD	Point-in-time
Common stock, par value (in dollars per share)	`CommonStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Common stock, shares authorized (in shares)	`CommonStockSharesAuthorized`	38.00M	shares	Point-in-time
Costs and estimated earnings in excess of billings on uncompleted contracts	`CapitalizedContractCostNetCurrent`	$37.11M	USD	Point-in-time
Costs and estimated earnings in excess of billings on uncompleted contracts	`CapitalizedContractCostNetCurrent`	$41.54M	USD	Point-in-time
Common stock, shares authorized (in shares)	`CommonStockSharesAuthorized`	38.00M	shares	Point-in-time
Common stock, shares issued (in shares)	`CommonStockSharesIssued`	27.06M	shares	Point-in-time
Common stock, shares issued (in shares)	`CommonStockSharesIssued`	27.05M	shares	Point-in-time
Inventories	`InventoryNet`	$3.16M	USD	Point-in-time
Inventories	`InventoryNet`	$4.62M	USD	Point-in-time
Treasury stock (in shares)	`TreasuryStockShares`	466,519.00	shares	Point-in-time
Sterlings receivables from and equity in construction joint ventures	`ReceivablesFromAndEquityInConstructionJointVenture`	$10.72M	USD	Point-in-time
Treasury stock (in shares)	`TreasuryStockShares`	0.00	shares	Point-in-time
Sterlings receivables from and equity in construction joint ventures	`ReceivablesFromAndEquityInConstructionJointVenture`	$11.38M	USD	Point-in-time
Other current assets	`OtherAssetsCurrent`	$7.53M	USD	Point-in-time
Other current assets	`OtherAssetsCurrent`	$8.07M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$302.62M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$278.53M	USD	Point-in-time
Property and equipment, net	`PropertyPlantAndEquipmentNet`	$54.41M	USD	Point-in-time
Property and equipment, net	`PropertyPlantAndEquipmentNet`	$52.00M	USD	Point-in-time
Goodwill	`Goodwill`	$85.23M	USD	Point-in-time
Goodwill	`Goodwill`	$85.23M	USD	Point-in-time
Intangibles, net	`IntangibleAssetsNetExcludingGoodwill`	$44.82M	USD	Point-in-time
Intangibles, net	`IntangibleAssetsNetExcludingGoodwill`	$42.42M	USD	Point-in-time
Other assets, net	`OtherAssetsNoncurrent`	$317.00K	USD	Point-in-time
Other assets, net	`OtherAssetsNoncurrent`	$309.00K	USD	Point-in-time
Total assets	`Assets`	$463.30M	USD	Point-in-time
Total assets	`Assets`	$482.57M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$97.46M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$99.43M	USD	Point-in-time
Billings in excess of costs and estimated earnings on uncompleted contracts	`ContractWithCustomerLiabilityCurrent`	$62.41M	USD	Point-in-time
Billings in excess of costs and estimated earnings on uncompleted contracts	`ContractWithCustomerLiabilityCurrent`	$62.37M	USD	Point-in-time
Current maturities of long-term debt	`LongTermDebtCurrent`	$2.90M	USD	Point-in-time
Current maturities of long-term debt	`LongTermDebtCurrent`	$3.98M	USD	Point-in-time
Income taxes payable	`AccruedIncomeTaxesCurrent`	$81.00K	USD	Point-in-time
Income taxes payable	`AccruedIncomeTaxesCurrent`	$318.00K	USD	Point-in-time
Accrued compensation	`EmployeeRelatedLiabilitiesCurrent`	$9.45M	USD	Point-in-time
Accrued compensation	`EmployeeRelatedLiabilitiesCurrent`	$9.05M	USD	Point-in-time
Other current liabilities	`AccruedLiabilitiesCurrent`	$4.68M	USD	Point-in-time
Other current liabilities	`AccruedLiabilitiesCurrent`	$9.35M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$179.17M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$182.29M	USD	Point-in-time
Long-term debt, net of current maturities	`LongTermDebtNoncurrent`	$79.12M	USD	Point-in-time
Long-term debt, net of current maturities	`LongTermDebtNoncurrent`	$86.16M	USD	Point-in-time
Members interest subject to mandatory redemption and undistributed earnings	`MembersInterestSubjectToMandatoryRedemptionAndUndistributedEarnings`	$47.39M	USD	Point-in-time
Members interest subject to mandatory redemption and undistributed earnings	`MembersInterestSubjectToMandatoryRedemptionAndUndistributedEarnings`	$49.34M	USD	Point-in-time
Deferred taxes	`DeferredIncomeTaxLiabilitiesNet`	-	USD	Point-in-time
Deferred taxes	`DeferredIncomeTaxLiabilitiesNet`	$1.45M	USD	Point-in-time
Other long-term liabilities	`LiabilitiesOtherThanLongtermDebtNoncurrent`	$1.27M	USD	Point-in-time
Other long-term liabilities	`LiabilitiesOtherThanLongtermDebtNoncurrent`	$1.23M	USD	Point-in-time
Total long-term liabilities	`LiabilitiesNoncurrent`	$134.82M	USD	Point-in-time
Total long-term liabilities	`LiabilitiesNoncurrent`	$131.14M	USD	Point-in-time
Commitments and Contingencies	`CommitmentsAndContingencies`	-	USD	Point-in-time
Commitments and Contingencies	`CommitmentsAndContingencies`	-	USD	Point-in-time
Preferred stock, par value $0.01 per share; 1,000,000 shares authorized, none issued	`PreferredStockValue`	-	USD	Point-in-time
Preferred stock, par value $0.01 per share; 1,000,000 shares authorized, none issued	`PreferredStockValue`	-	USD	Point-in-time
Common stock, par value $0.01 per share; 38,000,000 shares authorized, 27,063,974 and 27,051,468 shares issued	`CommonStockValue`	$271.00K	USD	Point-in-time
Common stock, par value $0.01 per share; 38,000,000 shares authorized, 27,063,974 and 27,051,468 shares issued	`CommonStockValue`	$271.00K	USD	Point-in-time
Additional paid in capital	`AdditionalPaidInCapital`	$231.18M	USD	Point-in-time
Additional paid in capital	`AdditionalPaidInCapital`	$233.79M	USD	Point-in-time
Treasury Stock at cost, 466,519 shares at December 31, 2018	`TreasuryStockValue`	-	USD	Point-in-time
Treasury Stock at cost, 466,519 shares at December 31, 2018	`TreasuryStockValue`	$4.73M	USD	Point-in-time
Retained deficit	`RetainedEarningsAccumulatedDeficit`	$-90.12M	USD	Point-in-time
Retained deficit	`RetainedEarningsAccumulatedDeficit`	$-64.93M	USD	Point-in-time
Total Sterling common stockholders equity	`StockholdersEquity`	$164.40M	USD	Point-in-time
Total Sterling common stockholders equity	`StockholdersEquity`	$141.33M	USD	Point-in-time
Noncontrolling interests	`MinorityInterest`	$4.86M	USD	Point-in-time
Noncontrolling interests	`MinorityInterest`	$7.86M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$146.19M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$172.26M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$108.09M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$95.75M	USD	Point-in-time
Total liabilities and equity	`LiabilitiesAndStockholdersEquity`	$482.57M	USD	Point-in-time
Total liabilities and equity	`LiabilitiesAndStockholdersEquity`	$463.30M	USD	Point-in-time

Income Statement 102 line items

Line Item	Tag	Value	Unit	Period
Revenues	`RevenueFromContractWithCustomerExcludingAssessedTax`	$255.18M	USD	1 Quarter
Revenues	`RevenueFromContractWithCustomerExcludingAssessedTax`	$1.04B	USD	Annual
Revenues	`RevenueFromContractWithCustomerExcludingAssessedTax`	$291.27M	USD	1 Quarter
Revenues	`RevenueFromContractWithCustomerExcludingAssessedTax`	$253.91M	USD	1 Quarter
Revenues	`RevenueFromContractWithCustomerExcludingAssessedTax`	$957.96M	USD	Annual
Revenues	`RevenueFromContractWithCustomerExcludingAssessedTax`	$268.73M	USD	1 Quarter
Revenues	`RevenueFromContractWithCustomerExcludingAssessedTax`	$153.42M	USD	1 Quarter
Revenues	`RevenueFromContractWithCustomerExcludingAssessedTax`	$304.22M	USD	1 Quarter
Revenues	`RevenueFromContractWithCustomerExcludingAssessedTax`	$246.41M	USD	1 Quarter
Revenues	`RevenueFromContractWithCustomerExcludingAssessedTax`	$222.49M	USD	1 Quarter
Revenues	`RevenueFromContractWithCustomerExcludingAssessedTax`	$690.12M	USD	Annual
Cost of revenues	`CostOfGoodsAndServicesSold`	$648.07M	USD	Annual
Cost of revenues	`CostOfGoodsAndServicesSold`	$927.34M	USD	Annual
Cost of revenues	`CostOfGoodsAndServicesSold`	$868.87M	USD	Annual
Gross profit	`GrossProfit`	$20.59M	USD	1 Quarter
Gross profit	`GrossProfit`	$31.46M	USD	1 Quarter
Gross profit	`GrossProfit`	$110.33M	USD	Annual
Gross profit	`GrossProfit`	$23.97M	USD	1 Quarter
Gross profit	`GrossProfit`	$89.09M	USD	Annual
Gross profit	`GrossProfit`	$25.20M	USD	1 Quarter
Gross profit	`GrossProfit`	$30.63M	USD	1 Quarter
Gross profit	`GrossProfit`	$42.06M	USD	Annual
Gross profit	`GrossProfit`	$26.74M	USD	1 Quarter
Gross profit	`GrossProfit`	$31.53M	USD	1 Quarter
Gross profit	`GrossProfit`	$9.29M	USD	1 Quarter
General and administrative expenses	`GeneralAndAdministrativeExpense`	$36.84M	USD	Annual
General and administrative expenses	`GeneralAndAdministrativeExpense`	$50.62M	USD	Annual
General and administrative expenses	`GeneralAndAdministrativeExpense`	$48.35M	USD	Annual
Other operating expense, net	`OtherOperatingIncomeExpenseNet`	$-14.56M	USD	Annual
Other operating expense, net	`OtherOperatingIncomeExpenseNet`	$-9.94M	USD	Annual
Other operating expense, net	`OtherOperatingIncomeExpenseNet`	$-17.10M	USD	Annual
Operating income (loss)	`OperatingIncomeLoss`	$26.18M	USD	Annual
Operating income (loss)	`OperatingIncomeLoss`	$-4.73M	USD	Annual
Operating income (loss)	`OperatingIncomeLoss`	$42.61M	USD	Annual
Interest income	`InterestIncomeOther`	$1.02M	USD	Annual
Interest income	`InterestIncomeOther`	$33.00K	USD	Annual
Interest income	`InterestIncomeOther`	$314.00K	USD	Annual
Interest expense	`InterestExpenseAndAccretedInterest`	$12.35M	USD	Annual
Interest expense	`InterestExpenseAndAccretedInterest`	$2.63M	USD	Annual
Interest expense	`InterestExpenseAndAccretedInterest`	$9.80M	USD	Annual
Loss on extinguishment of debt	`GainsLossesOnExtinguishmentOfDebt`	$-755.00K	USD	Annual
Loss on extinguishment of debt	`GainsLossesOnExtinguishmentOfDebt`	-	USD	Annual
Loss on extinguishment of debt	`GainsLossesOnExtinguishmentOfDebt`	-	USD	Annual
Income (loss) before income taxes and noncontrolling interests in earnings	`IncomeBeforeIncomeTaxesAndEarningsAttributableToNoncontrollingInterests`	$3.72M	USD	1 Quarter
Income (loss) before income taxes and noncontrolling interests in earnings	`IncomeBeforeIncomeTaxesAndEarningsAttributableToNoncontrollingInterests`	$3.96M	USD	1 Quarter
Income (loss) before income taxes and noncontrolling interests in earnings	`IncomeBeforeIncomeTaxesAndEarningsAttributableToNoncontrollingInterests`	$4.66M	USD	1 Quarter
Income (loss) before income taxes and noncontrolling interests in earnings	`IncomeBeforeIncomeTaxesAndEarningsAttributableToNoncontrollingInterests`	$9.17M	USD	1 Quarter
Income (loss) before income taxes and noncontrolling interests in earnings	`IncomeBeforeIncomeTaxesAndEarningsAttributableToNoncontrollingInterests`	$31.28M	USD	Annual
Income (loss) before income taxes and noncontrolling interests in earnings	`IncomeBeforeIncomeTaxesAndEarningsAttributableToNoncontrollingInterests`	$9.24M	USD	1 Quarter
Income (loss) before income taxes and noncontrolling interests in earnings	`IncomeBeforeIncomeTaxesAndEarningsAttributableToNoncontrollingInterests`	$-7.32M	USD	Annual
Income (loss) before income taxes and noncontrolling interests in earnings	`IncomeBeforeIncomeTaxesAndEarningsAttributableToNoncontrollingInterests`	$11.58M	USD	1 Quarter
Income (loss) before income taxes and noncontrolling interests in earnings	`IncomeBeforeIncomeTaxesAndEarningsAttributableToNoncontrollingInterests`	$6.74M	USD	1 Quarter
Income (loss) before income taxes and noncontrolling interests in earnings	`IncomeBeforeIncomeTaxesAndEarningsAttributableToNoncontrollingInterests`	$15.94M	USD	Annual
Income (loss) before income taxes and noncontrolling interests in earnings	`IncomeBeforeIncomeTaxesAndEarningsAttributableToNoncontrollingInterests`	$-1.86M	USD	1 Quarter
Income tax expense	`IncomeTaxExpenseBenefit`	$118.00K	USD	Annual
Income tax expense	`IncomeTaxExpenseBenefit`	$88.00K	USD	Annual
Income tax expense	`IncomeTaxExpenseBenefit`	$1.74M	USD	Annual
Net income (loss)	`ProfitLoss`	$15.82M	USD	Annual
Net income (loss)	`ProfitLoss`	$-7.41M	USD	Annual
Net income (loss)	`ProfitLoss`	$29.54M	USD	Annual
Noncontrolling interests in earnings	`NoncontrollingInterestInNetIncomeLossOtherNoncontrollingInterestsRedeemable`	$4.35M	USD	Annual
Noncontrolling interests in earnings	`NoncontrollingInterestInNetIncomeLossOtherNoncontrollingInterestsRedeemable`	$1.83M	USD	Annual
Noncontrolling interests in earnings	`NoncontrollingInterestInNetIncomeLossOtherNoncontrollingInterestsRedeemable`	$4.20M	USD	Annual
Net income (loss) attributable to Sterling common stockholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$-9.24M	USD	Annual
Net income (loss) attributable to Sterling common stockholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$3.66M	USD	1 Quarter
Net income (loss) attributable to Sterling common stockholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$3.08M	USD	1 Quarter
Net income (loss) attributable to Sterling common stockholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$-2.26M	USD	1 Quarter
Net income (loss) attributable to Sterling common stockholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$8.18M	USD	1 Quarter
Net income (loss) attributable to Sterling common stockholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$5.61M	USD	1 Quarter
Net income (loss) attributable to Sterling common stockholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$7.13M	USD	1 Quarter
Net income (loss) attributable to Sterling common stockholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$2.49M	USD	1 Quarter
Net income (loss) attributable to Sterling common stockholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$11.62M	USD	Annual
Net income (loss) attributable to Sterling common stockholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$25.19M	USD	Annual
Net income (loss) attributable to Sterling common stockholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$8.91M	USD	1 Quarter
Basic (in dollars per share)	`EarningsPerShareBasic`	$0.22	USD	1 Quarter
Basic (in dollars per share)	`EarningsPerShareBasic`	$0.94	USD	Annual
Basic (in dollars per share)	`EarningsPerShareBasic`	$-0.09	USD	1 Quarter
Basic (in dollars per share)	`EarningsPerShareBasic`	$0.09	USD	1 Quarter
Basic (in dollars per share)	`EarningsPerShareBasic`	$0.30	USD	1 Quarter
Basic (in dollars per share)	`EarningsPerShareBasic`	$0.27	USD	1 Quarter
Basic (in dollars per share)	`EarningsPerShareBasic`	$0.33	USD	1 Quarter
Basic (in dollars per share)	`EarningsPerShareBasic`	$-0.40	USD	Annual
Basic (in dollars per share)	`EarningsPerShareBasic`	$0.11	USD	1 Quarter
Basic (in dollars per share)	`EarningsPerShareBasic`	$0.14	USD	1 Quarter
Basic (in dollars per share)	`EarningsPerShareBasic`	$0.44	USD	Annual
Diluted (in dollars per share)	`EarningsPerShareDiluted`	$0.33	USD	1 Quarter
Diluted (in dollars per share)	`EarningsPerShareDiluted`	$0.11	USD	1 Quarter
Diluted (in dollars per share)	`EarningsPerShareDiluted`	$0.93	USD	Annual
Diluted (in dollars per share)	`EarningsPerShareDiluted`	$0.43	USD	Annual
Diluted (in dollars per share)	`EarningsPerShareDiluted`	$0.26	USD	1 Quarter
Diluted (in dollars per share)	`EarningsPerShareDiluted`	$-0.09	USD	1 Quarter
Diluted (in dollars per share)	`EarningsPerShareDiluted`	$0.21	USD	1 Quarter
Diluted (in dollars per share)	`EarningsPerShareDiluted`	$0.09	USD	1 Quarter
Diluted (in dollars per share)	`EarningsPerShareDiluted`	$0.13	USD	1 Quarter
Diluted (in dollars per share)	`EarningsPerShareDiluted`	$-0.40	USD	Annual
Diluted (in dollars per share)	`EarningsPerShareDiluted`	$0.30	USD	1 Quarter
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	26.90M	shares	Annual
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	26.27M	shares	Annual
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	23.14M	shares	Annual
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	27.19M	shares	Annual
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	23.14M	shares	Annual
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	26.71M	shares	Annual

Cash Flow Statement 129 line items

Line Item	Tag	Value	Unit	Period
Shares issued in acquisition of business (in shares)	`BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued`	1.88M	shares	Annual
Warrants issued during the period (in shares)	`ClassOfWarrantOrRightIssuedDuringThePeriod`	1.00M	shares	Annual
Net income (loss) attributable to Sterling common stockholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$-9.24M	USD	Annual
Net income (loss) attributable to Sterling common stockholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$3.66M	USD	1 Quarter
Net income (loss) attributable to Sterling common stockholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$3.08M	USD	1 Quarter
Net income (loss) attributable to Sterling common stockholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$-2.26M	USD	1 Quarter
Net income (loss) attributable to Sterling common stockholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$8.18M	USD	1 Quarter
Net income (loss) attributable to Sterling common stockholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$5.61M	USD	1 Quarter
Net income (loss) attributable to Sterling common stockholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$7.13M	USD	1 Quarter
Net income (loss) attributable to Sterling common stockholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$2.49M	USD	1 Quarter
Net income (loss) attributable to Sterling common stockholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$11.62M	USD	Annual
Net income (loss) attributable to Sterling common stockholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$25.19M	USD	Annual
Net income (loss) attributable to Sterling common stockholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$8.91M	USD	1 Quarter
Plus: Noncontrolling owners interests in earnings of subsidiaries and joint ventures	`NetIncomeLossAttributableToNoncontrollingInterest`	$4.35M	USD	Annual
Plus: Noncontrolling owners interests in earnings of subsidiaries and joint ventures	`NetIncomeLossAttributableToNoncontrollingInterest`	$1.83M	USD	Annual
Plus: Noncontrolling owners interests in earnings of subsidiaries and joint ventures	`NetIncomeLossAttributableToNoncontrollingInterest`	$4.20M	USD	Annual
Net income (loss)	`ProfitLoss`	$15.82M	USD	Annual
Net income (loss)	`ProfitLoss`	$-7.41M	USD	Annual
Net income (loss)	`ProfitLoss`	$29.54M	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$15.70M	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$16.77M	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$16.99M	USD	Annual
Amortization of deferred loan costs	`AmortizationOfFinancingCosts`	$2.56M	USD	Annual
Amortization of deferred loan costs	`AmortizationOfFinancingCosts`	$349.00K	USD	Annual
Amortization of deferred loan costs	`AmortizationOfFinancingCosts`	$3.25M	USD	Annual
Loss (gain) on disposal of property and equipment	`GainLossOnSaleOfPropertyPlantEquipment`	$580.00K	USD	Annual
Loss (gain) on disposal of property and equipment	`GainLossOnSaleOfPropertyPlantEquipment`	$367.00K	USD	Annual
Loss (gain) on disposal of property and equipment	`GainLossOnSaleOfPropertyPlantEquipment`	$-171.00K	USD	Annual
Loss on debt extinguishment	`GainsLossesOnExtinguishmentOfDebt`	$-755.00K	USD	Annual
Loss on debt extinguishment	`GainsLossesOnExtinguishmentOfDebt`	-	USD	Annual
Loss on debt extinguishment	`GainsLossesOnExtinguishmentOfDebt`	-	USD	Annual
Deferred tax expense	`DeferredIncomeTaxExpenseBenefit`	$1.45M	USD	Annual
Deferred tax expense	`DeferredIncomeTaxExpenseBenefit`	-	USD	Annual
Deferred tax expense	`DeferredIncomeTaxExpenseBenefit`	-	USD	Annual
Stock-based compensation expense	`ShareBasedCompensation`	$2.84M	USD	Annual
Stock-based compensation expense	`ShareBasedCompensation`	$1.81M	USD	Annual
Stock-based compensation expense	`ShareBasedCompensation`	$3.06M	USD	Annual
Receivables, including retainage	`IncreaseDecreaseInAccountsReceivable`	$2.02M	USD	Annual
Receivables, including retainage	`IncreaseDecreaseInAccountsReceivable`	$29.92M	USD	Annual
Receivables, including retainage	`IncreaseDecreaseInAccountsReceivable`	$11.09M	USD	Annual
Net amount of billings in excess of costs and estimated earnings on uncompleted contracts	`IncreaseDecreaseInContractWithCustomerAsset`	$3.49M	USD	Annual
Net amount of billings in excess of costs and estimated earnings on uncompleted contracts	`IncreaseDecreaseInContractWithCustomerAsset`	$-27.74M	USD	Annual
Net amount of billings in excess of costs and estimated earnings on uncompleted contracts	`IncreaseDecreaseInContractWithCustomerAsset`	$4.40M	USD	Annual
Receivables from and equity in construction joint ventures	`IncreaseDecreaseInReceivablesFromAndEquityInConstructionJointVentures`	$-5.80M	USD	Annual
Receivables from and equity in construction joint ventures	`IncreaseDecreaseInReceivablesFromAndEquityInConstructionJointVentures`	$-659.00K	USD	Annual
Receivables from and equity in construction joint ventures	`IncreaseDecreaseInReceivablesFromAndEquityInConstructionJointVentures`	$4.25M	USD	Annual
Other assets	`IncreaseDecreaseInOtherOperatingAssets`	$578.00K	USD	Annual
Other assets	`IncreaseDecreaseInOtherOperatingAssets`	$-924.00K	USD	Annual
Other assets	`IncreaseDecreaseInOtherOperatingAssets`	$-929.00K	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$8.14M	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$13.58M	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$1.97M	USD	Annual
Accrued compensation and other liabilities	`IncreaseDecreaseInAccruedLiabilities`	$-4.04M	USD	Annual
Accrued compensation and other liabilities	`IncreaseDecreaseInAccruedLiabilities`	$6.62M	USD	Annual
Accrued compensation and other liabilities	`IncreaseDecreaseInAccruedLiabilities`	$319.00K	USD	Annual
Members interest subject to mandatory redemption and undistributed earnings	`IncreaseDecreaseInMembersInterestSubjectToMandatoryRedemptionAndUndistributedEarnings`	$1.96M	USD	Annual
Members interest subject to mandatory redemption and undistributed earnings	`IncreaseDecreaseInMembersInterestSubjectToMandatoryRedemptionAndUndistributedEarnings`	$2.16M	USD	Annual
Members interest subject to mandatory redemption and undistributed earnings	`IncreaseDecreaseInMembersInterestSubjectToMandatoryRedemptionAndUndistributedEarnings`	$-5.21M	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$39.47M	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$24.77M	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$44.27M	USD	Annual
Tealstone acquisition, net of cash acquired	`PaymentsToAcquireBusinessesNetOfCashAcquired`	$54.86M	USD	Annual
Tealstone acquisition, net of cash acquired	`PaymentsToAcquireBusinessesNetOfCashAcquired`	-	USD	Annual
Tealstone acquisition, net of cash acquired	`PaymentsToAcquireBusinessesNetOfCashAcquired`	-	USD	Annual
Additions to property and equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$9.42M	USD	Annual
Additions to property and equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$13.17M	USD	Annual
Additions to property and equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$10.89M	USD	Annual
Proceeds from sale of property and equipment	`ProceedsFromSaleOfPropertyPlantAndEquipment`	$2.71M	USD	Annual
Proceeds from sale of property and equipment	`ProceedsFromSaleOfPropertyPlantAndEquipment`	$8.38M	USD	Annual
Proceeds from sale of property and equipment	`ProceedsFromSaleOfPropertyPlantAndEquipment`	$1.79M	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-8.17M	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-55.90M	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-11.38M	USD	Annual
Cash received - Oaktree Facility	`ProceedsFromLinesOfCredit`	$85.00M	USD	Annual
Cash received - Oaktree Facility	`ProceedsFromLinesOfCredit`	-	USD	Annual
Cash received - Oaktree Facility	`ProceedsFromLinesOfCredit`	-	USD	Annual
Repayments - equipment-based term loan and other	`RepaymentsOfOtherDebt`	$14.97M	USD	Annual
Repayments - equipment-based term loan and other	`RepaymentsOfOtherDebt`	$1.13M	USD	Annual
Repayments - equipment-based term loan and other	`RepaymentsOfOtherDebt`	$4.71M	USD	Annual
Repayments - Oaktree Facility	`RepaymentsOfSecuredDebt`	-	USD	Annual
Repayments - Oaktree Facility	`RepaymentsOfSecuredDebt`	$10.43M	USD	Annual
Repayments - Oaktree Facility	`RepaymentsOfSecuredDebt`	-	USD	Annual
Distributions to noncontrolling interest owners	`PaymentsToMinorityShareholders`	-	USD	Annual
Distributions to noncontrolling interest owners	`PaymentsToMinorityShareholders`	$1.08M	USD	Annual
Distributions to noncontrolling interest owners	`PaymentsToMinorityShareholders`	$1.35M	USD	Annual
Net proceeds from stock issued	`ProceedsFromIssuanceOfCommonStock`	-	USD	Annual
Net proceeds from stock issued	`ProceedsFromIssuanceOfCommonStock`	-	USD	Annual
Net proceeds from stock issued	`ProceedsFromIssuanceOfCommonStock`	$19.14M	USD	Annual
Purchase of Treasury Stock	`PaymentsForRepurchaseOfCommonStock`	$4.73M	USD	Annual
Purchase of Treasury Stock	`PaymentsForRepurchaseOfCommonStock`	-	USD	Annual
Purchase of Treasury Stock	`PaymentsForRepurchaseOfCommonStock`	-	USD	Annual
Debt issuance costs	`PaymentsOfFinancingCosts`	-	USD	Annual
Debt issuance costs	`PaymentsOfFinancingCosts`	-	USD	Annual
Debt issuance costs	`PaymentsOfFinancingCosts`	$6.87M	USD	Annual
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	$-835.00K	USD	Annual
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	$-314.00K	USD	Annual
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	$-1.12M	USD	Annual
Net cash provided by (used in) financing activities	`NetCashProvidedByUsedInFinancingActivities`	$72.30M	USD	Annual
Net cash provided by (used in) financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-17.95M	USD	Annual
Net cash provided by (used in) financing activities	`NetCashProvidedByUsedInFinancingActivities`	$2.26M	USD	Annual
Net increase in cash and cash equivalents	`CashAndCashEquivalentsPeriodIncreaseDecrease`	$10.14M	USD	Annual
Net increase in cash and cash equivalents	`CashAndCashEquivalentsPeriodIncreaseDecrease`	$41.17M	USD	Annual
Net increase in cash and cash equivalents	`CashAndCashEquivalentsPeriodIncreaseDecrease`	$38.36M	USD	Annual
Cash and cash equivalents at beginning of period	`CashAndCashEquivalentsAtCarryingValue`	$94.09M	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashAndCashEquivalentsAtCarryingValue`	$42.78M	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashAndCashEquivalentsAtCarryingValue`	$83.95M	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashAndCashEquivalentsAtCarryingValue`	$4.43M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashAndCashEquivalentsAtCarryingValue`	$94.09M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashAndCashEquivalentsAtCarryingValue`	$42.78M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashAndCashEquivalentsAtCarryingValue`	$83.95M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashAndCashEquivalentsAtCarryingValue`	$4.43M	USD	Point-in-time
Cash paid during the period for interest	`InterestPaidNet`	$2.63M	USD	Annual
Cash paid during the period for interest	`InterestPaidNet`	$9.80M	USD	Annual
Cash paid during the period for interest	`InterestPaidNet`	$10.83M	USD	Annual
Cash paid during the period for income taxes	`IncomeTaxesPaid`	$276.00K	USD	Annual
Cash paid during the period for income taxes	`IncomeTaxesPaid`	$72.00K	USD	Annual
Cash paid during the period for income taxes	`IncomeTaxesPaid`	$279.00K	USD	Annual
Share consideration given for Tealstone acquisition (1,882,058 shares)	`BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable`	-	USD	Annual
Share consideration given for Tealstone acquisition (1,882,058 shares)	`BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable`	$17.06M	USD	Annual
Share consideration given for Tealstone acquisition (1,882,058 shares)	`BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable`	-	USD	Annual
Notes and deferred payments to sellers	`NoncashOrPartNoncashAcquisitionNotesPayableAndDeferredPaymentsIncurred`	-	USD	Annual
Notes and deferred payments to sellers	`NoncashOrPartNoncashAcquisitionNotesPayableAndDeferredPaymentsIncurred`	-	USD	Annual
Notes and deferred payments to sellers	`NoncashOrPartNoncashAcquisitionNotesPayableAndDeferredPaymentsIncurred`	$11.59M	USD	Annual
Warrants issued to lenders (1,000,000 Warrants)	`OtherSignificantNoncashTransactionValueOfConsiderationGiven1`	-	USD	Annual
Warrants issued to lenders (1,000,000 Warrants)	`OtherSignificantNoncashTransactionValueOfConsiderationGiven1`	-	USD	Annual
Warrants issued to lenders (1,000,000 Warrants)	`OtherSignificantNoncashTransactionValueOfConsiderationGiven1`	$3.50M	USD	Annual
Transportation and construction equipment acquired through financing arrangements	`NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1`	-	USD	Annual
Transportation and construction equipment acquired through financing arrangements	`NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1`	$70.00K	USD	Annual
Transportation and construction equipment acquired through financing arrangements	`NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1`	$740.00K	USD	Annual

Stockholders Equity 25 line items

Line Item	Tag	Value	Unit	Period
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$146.19M	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$172.26M	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$108.09M	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$95.75M	USD	Point-in-time
Net (loss) income	`ProfitLoss`	$15.82M	USD	Annual
Net (loss) income	`ProfitLoss`	$-7.41M	USD	Annual
Net (loss) income	`ProfitLoss`	$29.54M	USD	Annual
Stock-based compensation	`StockIssuedDuringPeriodValueShareBasedCompensationGross`	$1.81M	USD	Annual
Stock-based compensation	`StockIssuedDuringPeriodValueShareBasedCompensationGross`	$3.06M	USD	Annual
Stock-based compensation	`StockIssuedDuringPeriodValueShareBasedCompensationGross`	$2.84M	USD	Annual
Stock issued for Tealstone acquisition	`StockIssuedDuringPeriodValueAcquisitions`	$17.06M	USD	Annual
Stock issued in equity offering, net of expense	`StockIssuedDuringPeriodValueNewIssues`	$19.14M	USD	Annual
Distribution to owners	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	-	USD	Annual
Distribution to owners	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$1.35M	USD	Annual
Distribution to owners	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$1.08M	USD	Annual
Repurchase of common stock (in shares)	`TreasuryStockSharesAcquired`	466,519.00	shares	Annual
Repurchase of common stock	`TreasuryStockValueAcquiredCostMethod`	$4.73M	USD	Annual
Warrants issued to lenders	`AdjustmentsToAdditionalPaidInCapitalWarrantIssued`	$3.50M	USD	Annual
Other	`AdjustmentsToAdditionalPaidInCapitalOther`	$-452.00K	USD	Annual
Other	`AdjustmentsToAdditionalPaidInCapitalOther`	$-1.12M	USD	Annual
Other	`AdjustmentsToAdditionalPaidInCapitalOther`	$-125.00K	USD	Annual
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$146.19M	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$172.26M	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$108.09M	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$95.75M	USD	Point-in-time

Comprehensive Income 17 line items

Line Item	Tag	Value	Unit	Period
Net income attributable to Sterling common stockholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$-9.24M	USD	Annual
Net income attributable to Sterling common stockholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$3.66M	USD	1 Quarter
Net income attributable to Sterling common stockholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$3.08M	USD	1 Quarter
Net income attributable to Sterling common stockholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$-2.26M	USD	1 Quarter
Net income attributable to Sterling common stockholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$8.18M	USD	1 Quarter
Net income attributable to Sterling common stockholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$5.61M	USD	1 Quarter
Net income attributable to Sterling common stockholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$7.13M	USD	1 Quarter
Net income attributable to Sterling common stockholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$2.49M	USD	1 Quarter
Net income attributable to Sterling common stockholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$11.62M	USD	Annual
Net income attributable to Sterling common stockholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$25.19M	USD	Annual
Net income attributable to Sterling common stockholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$8.91M	USD	1 Quarter
Net income attributable to noncontrolling interest included in equity	`NetincomeAttributableToNoncontrollingInterestIncludedInequity`	$1.83M	USD	Annual
Net income attributable to noncontrolling interest included in equity	`NetincomeAttributableToNoncontrollingInterestIncludedInequity`	$4.20M	USD	Annual
Net income attributable to noncontrolling interest included in equity	`NetincomeAttributableToNoncontrollingInterestIncludedInequity`	$4.35M	USD	Annual
Comprehensive income (loss)	`ComprehensiveIncomeNetOfTax`	$-7.41M	USD	Annual
Comprehensive income (loss)	`ComprehensiveIncomeNetOfTax`	$29.54M	USD	Annual
Comprehensive income (loss)	`ComprehensiveIncomeNetOfTax`	$15.82M	USD	Annual

Data is extracted from SEC EDGAR XBRL filings. Values shown are as reported in the filing.