10-K/A Filing

STERLING INFRASTRUCTURE, INC. CIK: 874238 FY 2021

Filing Information

Form Type	10-K/A
Accession Number	`0000874238-22-000044`
Period End Date	20211231
Filing Date	20220324
Fiscal Year	2021
Fiscal Period	FY
XBRL Instance	strl-20211231_htm.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 118 Income Statement 60 Cash Flow Statement 98 Stockholders Equity 31 Comprehensive Income 15

Balance Sheet 118 line items

Line Item	Tag	Value	Unit	Period
Cash and cash equivalents ($35,378 and $26,122 related to variable interest entities (VIEs))	`CashAndCashEquivalentsAtCarryingValue`	$81.84M	USD	Point-in-time
Cash and cash equivalents ($35,378 and $26,122 related to variable interest entities (VIEs))	`CashAndCashEquivalentsAtCarryingValue`	$66.19M	USD	Point-in-time
Cash and cash equivalents ($35,378 and $26,122 related to variable interest entities (VIEs))	`CashAndCashEquivalentsAtCarryingValue`	$45.73M	USD	Point-in-time
Accounts receivable ($26,176 and $25,789 related to VIEs)	`ReceivablesLongTermContractsOrPrograms`	$177.42M	USD	Point-in-time
Accounts receivable ($26,176 and $25,789 related to VIEs)	`ReceivablesLongTermContractsOrPrograms`	$232.15M	USD	Point-in-time
Contract assets ($10,249 and $8,370 related to VIEs)	`CapitalizedContractCostGross`	$83.31M	USD	Point-in-time
Contract assets ($10,249 and $8,370 related to VIEs)	`CapitalizedContractCostGross`	$84.97M	USD	Point-in-time
Receivables from and equity in construction joint ventures ($7,058 and $9,708 related to VIEs)	`ReceivablesFromAndEquityInConstructionJointVenture`	$16.90M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashAndCashEquivalentsAtCarryingValue`	$81.84M	USD	Point-in-time
Receivables from and equity in construction joint ventures ($7,058 and $9,708 related to VIEs)	`ReceivablesFromAndEquityInConstructionJointVenture`	$16.65M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashAndCashEquivalentsAtCarryingValue`	$66.19M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashAndCashEquivalentsAtCarryingValue`	$45.73M	USD	Point-in-time
Accounts receivable	`ReceivablesLongTermContractsOrPrograms`	$177.42M	USD	Point-in-time
Accounts receivable	`ReceivablesLongTermContractsOrPrograms`	$232.15M	USD	Point-in-time
Other current assets ($1,087 and $1,493 related to VIEs)	`OtherAssetsCurrent`	$20.49M	USD	Point-in-time
Other current assets ($1,087 and $1,493 related to VIEs)	`OtherAssetsCurrent`	$16.31M	USD	Point-in-time
Contract assets	`CapitalizedContractCostGross`	$83.31M	USD	Point-in-time
Contract assets	`CapitalizedContractCostGross`	$84.97M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$361.54M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$434.69M	USD	Point-in-time
Property and equipment, net ($10,420 and $6,010 related to VIEs)	`PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization`	$126.67M	USD	Point-in-time
Sterlings receivables from and equity in construction joint ventures	`ReceivablesFromAndEquityInConstructionJointVenture`	$16.90M	USD	Point-in-time
Property and equipment, net ($10,420 and $6,010 related to VIEs)	`PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization`	$204.32M	USD	Point-in-time
Sterlings receivables from and equity in construction joint ventures	`ReceivablesFromAndEquityInConstructionJointVenture`	$16.65M	USD	Point-in-time
Operating lease right-of-use assets, net ($5,097 and $4,213 related to VIEs)	`OperatingLeaseRightOfUseAsset`	$16.52M	USD	Point-in-time
Other current assets	`OtherAssetsCurrent`	$20.49M	USD	Point-in-time
Operating lease right-of-use assets, net ($5,097 and $4,213 related to VIEs)	`OperatingLeaseRightOfUseAsset`	$24.52M	USD	Point-in-time
Other current assets	`OtherAssetsCurrent`	$16.31M	USD	Point-in-time
Goodwill ($1,501 and $1,501 related to VIEs)	`Goodwill`	$192.01M	USD	Point-in-time
Goodwill ($1,501 and $1,501 related to VIEs)	`Goodwill`	$259.79M	USD	Point-in-time
Property and equipment, net	`PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization`	$126.67M	USD	Point-in-time
Property and equipment, net	`PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization`	$204.32M	USD	Point-in-time
Other intangibles, net	`IntangibleAssetsNetExcludingGoodwill`	$303.22M	USD	Point-in-time
Operating lease right-of-use assets	`OperatingLeaseRightOfUseAsset`	$16.52M	USD	Point-in-time
Other intangibles, net	`IntangibleAssetsNetExcludingGoodwill`	$244.89M	USD	Point-in-time
Operating lease right-of-use assets	`OperatingLeaseRightOfUseAsset`	$24.52M	USD	Point-in-time
Other non-current assets, net	`OtherAssetsNoncurrent`	$4.46M	USD	Point-in-time
Goodwill	`Goodwill`	$192.01M	USD	Point-in-time
Goodwill	`Goodwill`	$259.79M	USD	Point-in-time
Other non-current assets, net	`OtherAssetsNoncurrent`	$11.07M	USD	Point-in-time
Total assets	`Assets`	$1.23B	USD	Point-in-time
Total assets	`Assets`	$952.69M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$144.98M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$95.20M	USD	Point-in-time
Contract liabilities	`ContractWithCustomerLiabilityCurrent`	$127.93M	USD	Point-in-time
Contract liabilities	`ContractWithCustomerLiabilityCurrent`	$114.02M	USD	Point-in-time
Current maturities of long-term debt	`LongTermDebtCurrent`	$77.43M	USD	Point-in-time
Current maturities of long-term debt	`LongTermDebtCurrent`	$28.23M	USD	Point-in-time
Current portion of long-term lease obligations	`OperatingLeaseLiabilityCurrent`	$7.59M	USD	Point-in-time
Current portion of long-term lease obligations	`OperatingLeaseLiabilityCurrent`	$8.84M	USD	Point-in-time
Accounts payable ($23,611 and $19,505 related to VIEs)	`AccountsPayableCurrent`	$144.98M	USD	Point-in-time
Accounts payable ($23,611 and $19,505 related to VIEs)	`AccountsPayableCurrent`	$95.20M	USD	Point-in-time
Accrued compensation	`EmployeeRelatedLiabilitiesCurrent`	$18.01M	USD	Point-in-time
Accrued compensation	`EmployeeRelatedLiabilitiesCurrent`	$22.80M	USD	Point-in-time
Contract liabilities ($22,583 and $17,678 related to VIEs)	`ContractWithCustomerLiabilityCurrent`	$127.93M	USD	Point-in-time
Contract liabilities ($22,583 and $17,678 related to VIEs)	`ContractWithCustomerLiabilityCurrent`	$114.02M	USD	Point-in-time
Current maturities of long-term debt ($4,857 and $6,793 related to VIEs)	`LongTermDebtCurrent`	$77.43M	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$9.63M	USD	Point-in-time
Current maturities of long-term debt ($4,857 and $6,793 related to VIEs)	`LongTermDebtCurrent`	$28.23M	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$18.97M	USD	Point-in-time
Current portion of long-term lease obligations ($2,334 and $1,801 related to VIEs)	`OperatingLeaseLiabilityCurrent`	$7.59M	USD	Point-in-time
Current portion of long-term lease obligations ($2,334 and $1,801 related to VIEs)	`OperatingLeaseLiabilityCurrent`	$8.84M	USD	Point-in-time
Total long-term debt	`LongTermDebtNoncurrent`	$428.59M	USD	Point-in-time
Total long-term debt	`LongTermDebtNoncurrent`	$291.25M	USD	Point-in-time
Accrued compensation ($2,388 and $2,141 related to VIEs)	`EmployeeRelatedLiabilitiesCurrent`	$18.01M	USD	Point-in-time
Accrued compensation ($2,388 and $2,141 related to VIEs)	`EmployeeRelatedLiabilitiesCurrent`	$22.80M	USD	Point-in-time
Long-term lease obligations	`OperatingLeaseLiabilityNoncurrent`	$15.83M	USD	Point-in-time
Long-term lease obligations	`OperatingLeaseLiabilityNoncurrent`	$8.96M	USD	Point-in-time
Other long-term liabilities	`OtherLiabilitiesNoncurrent`	$4.82M	USD	Point-in-time
Other current liabilities ($889 and $1,374 related to VIEs)	`OtherLiabilitiesCurrent`	$9.63M	USD	Point-in-time
Other current liabilities ($889 and $1,374 related to VIEs)	`OtherLiabilitiesCurrent`	$18.97M	USD	Point-in-time
Other long-term liabilities	`OtherLiabilitiesNoncurrent`	$10.58M	USD	Point-in-time
Common stock, par value (in dollars per share)	`CommonStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$321.88M	USD	Point-in-time
Common stock, par value (in dollars per share)	`CommonStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$351.76M	USD	Point-in-time
Common stock, shares authorized (in shares)	`CommonStockSharesAuthorized`	38.00M	shares	Point-in-time
Common stock, shares authorized (in shares)	`CommonStockSharesAuthorized`	38.00M	shares	Point-in-time
Long-term debt ($81 and $53 related to VIEs)	`LongTermDebtNoncurrent`	$428.59M	USD	Point-in-time
Long-term debt ($81 and $53 related to VIEs)	`LongTermDebtNoncurrent`	$291.25M	USD	Point-in-time
Common stock, shares issued (in shares)	`CommonStockSharesIssued`	28.28M	shares	Point-in-time
Common stock, shares issued (in shares)	`CommonStockSharesIssued`	29.84M	shares	Point-in-time
Long-term lease obligations ($2,763 and $2,412 related to VIEs)	`OperatingLeaseLiabilityNoncurrent`	$15.83M	USD	Point-in-time
Long-term lease obligations ($2,763 and $2,412 related to VIEs)	`OperatingLeaseLiabilityNoncurrent`	$8.96M	USD	Point-in-time
Members interest subject to mandatory redemption and undistributed earnings	`MembersInterestSubjectToMandatoryRedemptionAndUndistributedEarnings`	$51.29M	USD	Point-in-time
Common stock, shares outstanding (in shares)	`CommonStockSharesOutstanding`	28.18M	shares	Point-in-time
Common stock, shares outstanding (in shares)	`CommonStockSharesOutstanding`	29.84M	shares	Point-in-time
Members interest subject to mandatory redemption and undistributed earnings	`MembersInterestSubjectToMandatoryRedemptionAndUndistributedEarnings`	$55.12M	USD	Point-in-time
Deferred tax liability, net	`DeferredIncomeTaxLiabilitiesNet`	$14.66M	USD	Point-in-time
Treasury stock (in shares)	`TreasuryStockShares`	95,000.00	shares	Point-in-time
Treasury stock (in shares)	`TreasuryStockShares`	0.00	shares	Point-in-time
Deferred tax liability, net	`DeferredIncomeTaxLiabilitiesNet`	-	USD	Point-in-time
Other long-term liabilities ($0 and $722 related to VIEs)	`OtherLiabilitiesNoncurrent`	$4.82M	USD	Point-in-time
Other long-term liabilities ($0 and $722 related to VIEs)	`OtherLiabilitiesNoncurrent`	$10.58M	USD	Point-in-time
Total liabilities	`Liabilities`	$870.77M	USD	Point-in-time
Total liabilities	`Liabilities`	$683.97M	USD	Point-in-time
Commitments and contingencies (Note 12)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Commitments and contingencies (Note 12)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Common stock, par value $0.01 per share; 38,000 shares authorized, 29,838 and 28,279 shares issued, 29,838 and 28,184 shares outstanding	`CommonStockValue`	$298.00K	USD	Point-in-time
Common stock, par value $0.01 per share; 38,000 shares authorized, 29,838 and 28,279 shares issued, 29,838 and 28,184 shares outstanding	`CommonStockValue`	$283.00K	USD	Point-in-time
Additional paid in capital	`AdditionalPaidInCapital`	$280.27M	USD	Point-in-time
Additional paid in capital	`AdditionalPaidInCapital`	$256.42M	USD	Point-in-time
Treasury stock, at cost: 0 and 95 shares	`TreasuryStockValue`	-	USD	Point-in-time
Treasury stock, at cost: 0 and 95 shares	`TreasuryStockValue`	$1.45M	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$79.92M	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$17.27M	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-5.26M	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-1.72M	USD	Point-in-time
Total Sterling stockholders equity	`StockholdersEquity`	$267.27M	USD	Point-in-time
Total Sterling stockholders equity	`StockholdersEquity`	$358.77M	USD	Point-in-time
Noncontrolling interests	`MinorityInterest`	$1.46M	USD	Point-in-time
Noncontrolling interests	`MinorityInterest`	$1.46M	USD	Point-in-time
Total stockholders equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$221.21M	USD	Point-in-time
Total stockholders equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$172.26M	USD	Point-in-time
Total stockholders equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$360.23M	USD	Point-in-time
Total stockholders equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$268.73M	USD	Point-in-time
Total liabilities and stockholders equity	`LiabilitiesAndStockholdersEquity`	$1.23B	USD	Point-in-time
Total liabilities and stockholders equity	`LiabilitiesAndStockholdersEquity`	$952.69M	USD	Point-in-time

Income Statement 60 line items

Line Item	Tag	Value	Unit	Period
Revenues	`RevenueFromContractWithCustomerExcludingAssessedTax`	$1.58B	USD	Annual
Revenues	`RevenueFromContractWithCustomerExcludingAssessedTax`	$1.13B	USD	Annual
Revenues	`RevenueFromContractWithCustomerExcludingAssessedTax`	$1.43B	USD	Annual
Cost of revenues	`CostOfGoodsAndServicesSold`	$1.37B	USD	Annual
Cost of revenues	`CostOfGoodsAndServicesSold`	$1.02B	USD	Annual
Cost of revenues	`CostOfGoodsAndServicesSold`	$1.24B	USD	Annual
Gross profit	`GrossProfit`	$191.37M	USD	Annual
Gross profit	`GrossProfit`	$214.76M	USD	Annual
Gross profit	`GrossProfit`	$107.79M	USD	Annual
General and administrative expense	`GeneralAndAdministrativeExpense`	$49.20M	USD	Annual
General and administrative expense	`GeneralAndAdministrativeExpense`	$71.42M	USD	Annual
General and administrative expense	`GeneralAndAdministrativeExpense`	$78.51M	USD	Annual
Intangible asset amortization	`AmortizationOfIntangibleAssets`	$11.44M	USD	Annual
Intangible asset amortization	`AmortizationOfIntangibleAssets`	$4.70M	USD	Annual
Intangible asset amortization	`AmortizationOfIntangibleAssets`	$11.46M	USD	Annual
Acquisition related costs	`BusinessCombinationAcquisitionRelatedCosts`	$4.31M	USD	Annual
Acquisition related costs	`BusinessCombinationAcquisitionRelatedCosts`	$1.03M	USD	Annual
Acquisition related costs	`BusinessCombinationAcquisitionRelatedCosts`	$3.88M	USD	Annual
Other operating expense, net	`OtherOperatingIncomeExpenseNet`	$-13.62M	USD	Annual
Other operating expense, net	`OtherOperatingIncomeExpenseNet`	$-12.60M	USD	Annual
Other operating expense, net	`OtherOperatingIncomeExpenseNet`	$-11.84M	USD	Annual
Operating income	`OperatingIncomeLoss`	$107.29M	USD	Annual
Operating income	`OperatingIncomeLoss`	$94.89M	USD	Annual
Operating income	`OperatingIncomeLoss`	$37.75M	USD	Annual
Interest income	`InterestIncomeOther`	$52.00K	USD	Annual
Interest income	`InterestIncomeOther`	$1.14M	USD	Annual
Interest income	`InterestIncomeOther`	$161.00K	USD	Annual
Interest expense	`InterestExpenseAndAccretedInterest`	$19.35M	USD	Annual
Interest expense	`InterestExpenseAndAccretedInterest`	$29.38M	USD	Annual
Interest expense	`InterestExpenseAndAccretedInterest`	$16.69M	USD	Annual
Gain (loss) on extinguishment of debt, net	`GainsLossesOnExtinguishmentOfDebt`	$2.03M	USD	Annual
Gain (loss) on extinguishment of debt, net	`GainsLossesOnExtinguishmentOfDebt`	$-301.00K	USD	Annual
Gain (loss) on extinguishment of debt, net	`GainsLossesOnExtinguishmentOfDebt`	$-7.73M	USD	Annual
Income before income taxes	`IncomeBeforeIncomeTaxesAndEarningsAttributableToNoncontrollingInterests`	$90.02M	USD	Annual
Income before income taxes	`IncomeBeforeIncomeTaxesAndEarningsAttributableToNoncontrollingInterests`	$14.48M	USD	Annual
Income before income taxes	`IncomeBeforeIncomeTaxesAndEarningsAttributableToNoncontrollingInterests`	$65.38M	USD	Annual
Income tax (expense) benefit	`IncomeTaxExpenseBenefit`	$-26.22M	USD	Annual
Income tax (expense) benefit	`IncomeTaxExpenseBenefit`	$24.90M	USD	Annual
Income tax (expense) benefit	`IncomeTaxExpenseBenefit`	$22.47M	USD	Annual
Net income	`ProfitLoss`	$65.12M	USD	Annual
Net income	`ProfitLoss`	$40.70M	USD	Annual
Net income	`ProfitLoss`	$42.90M	USD	Annual
Less: Net income attributable to noncontrolling interests	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$794.00K	USD	Annual
Less: Net income attributable to noncontrolling interests	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$2.48M	USD	Annual
Less: Net income attributable to noncontrolling interests	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$598.00K	USD	Annual
Net income attributable to Sterling common stockholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$62.65M	USD	Annual
Net income attributable to Sterling common stockholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$42.31M	USD	Annual
Net income attributable to Sterling common stockholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$39.90M	USD	Annual
Basic (in dollars per share)	`EarningsPerShareBasic`	$1.50	USD	Annual
Basic (in dollars per share)	`EarningsPerShareBasic`	$2.19	USD	Annual
Basic (in dollars per share)	`EarningsPerShareBasic`	$1.52	USD	Annual
Diluted (in dollars per share)	`EarningsPerShareDiluted`	$1.47	USD	Annual
Diluted (in dollars per share)	`EarningsPerShareDiluted`	$1.50	USD	Annual
Diluted (in dollars per share)	`EarningsPerShareDiluted`	$2.15	USD	Annual
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	28.60M	shares	Annual
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	26.67M	shares	Annual
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	27.86M	shares	Annual
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	27.12M	shares	Annual
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	29.10M	shares	Annual
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	28.20M	shares	Annual

Cash Flow Statement 98 line items

Line Item	Tag	Value	Unit	Period
Net income	`ProfitLoss`	$65.12M	USD	Annual
Net income	`ProfitLoss`	$40.70M	USD	Annual
Net income	`ProfitLoss`	$42.90M	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$20.74M	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$34.20M	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$32.78M	USD	Annual
Amortization of debt issuance costs and non-cash interest	`AmortizationOfFinancingCostsAndDiscounts`	$3.19M	USD	Annual
Amortization of debt issuance costs and non-cash interest	`AmortizationOfFinancingCostsAndDiscounts`	$2.24M	USD	Annual
Amortization of debt issuance costs and non-cash interest	`AmortizationOfFinancingCostsAndDiscounts`	$3.39M	USD	Annual
Gain on disposal of property and equipment	`GainLossOnSaleOfPropertyPlantEquipment`	$1.40M	USD	Annual
Gain on disposal of property and equipment	`GainLossOnSaleOfPropertyPlantEquipment`	$527.00K	USD	Annual
Gain on disposal of property and equipment	`GainLossOnSaleOfPropertyPlantEquipment`	$1.50M	USD	Annual
(Gain) loss on debt extinguishment	`GainLossOnExtinguishmentOfDebtRelatedToCashPortion`	$-4.33M	USD	Annual
(Gain) loss on debt extinguishment	`GainLossOnExtinguishmentOfDebtRelatedToCashPortion`	$2.03M	USD	Annual
(Gain) loss on debt extinguishment	`GainLossOnExtinguishmentOfDebtRelatedToCashPortion`	$-301.00K	USD	Annual
Deferred taxes	`DeferredIncomeTaxExpenseBenefit`	$19.44M	USD	Annual
Deferred taxes	`DeferredIncomeTaxExpenseBenefit`	$21.43M	USD	Annual
Deferred taxes	`DeferredIncomeTaxExpenseBenefit`	$-27.40M	USD	Annual
Stock-based compensation expense	`ShareBasedCompensation`	$3.79M	USD	Annual
Stock-based compensation expense	`ShareBasedCompensation`	$11.77M	USD	Annual
Stock-based compensation expense	`ShareBasedCompensation`	$11.64M	USD	Annual
Change in fair value of interest rate swap	`UnrealizedGainLossOnDerivatives`	$32.00K	USD	Annual
Change in fair value of interest rate swap	`UnrealizedGainLossOnDerivatives`	$-265.00K	USD	Annual
Change in fair value of interest rate swap	`UnrealizedGainLossOnDerivatives`	$30.00K	USD	Annual
Changes in operating assets and liabilities	`IncreaseDecreaseInOperatingCapital`	$-20.29M	USD	Annual
Changes in operating assets and liabilities	`IncreaseDecreaseInOperatingCapital`	$2.93M	USD	Annual
Changes in operating assets and liabilities	`IncreaseDecreaseInOperatingCapital`	$-11.88M	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$151.59M	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$120.91M	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$42.07M	USD	Annual
Acquisitions, net of cash acquired	`PaymentsToAcquireBusinessesNetOfCashAcquired`	$180.91M	USD	Annual
Acquisitions, net of cash acquired	`PaymentsToAcquireBusinessesNetOfCashAcquired`	$396.32M	USD	Annual
Acquisitions, net of cash acquired	`PaymentsToAcquireBusinessesNetOfCashAcquired`	-	USD	Annual
Capital expenditures	`PaymentsToAcquirePropertyPlantAndEquipment`	$46.65M	USD	Annual
Capital expenditures	`PaymentsToAcquirePropertyPlantAndEquipment`	$15.40M	USD	Annual
Capital expenditures	`PaymentsToAcquirePropertyPlantAndEquipment`	$32.86M	USD	Annual
Proceeds from sale of property and equipment	`ProceedsFromSaleOfPropertyPlantAndEquipment`	$1.33M	USD	Annual
Proceeds from sale of property and equipment	`ProceedsFromSaleOfPropertyPlantAndEquipment`	$4.11M	USD	Annual
Proceeds from sale of property and equipment	`ProceedsFromSaleOfPropertyPlantAndEquipment`	$2.37M	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-410.39M	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-30.49M	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-223.45M	USD	Annual
Cash received from credit facility	`ProceedsFromLinesOfCredit`	-	USD	Annual
Cash received from credit facility	`ProceedsFromLinesOfCredit`	$140.00M	USD	Annual
Cash received from credit facility	`ProceedsFromLinesOfCredit`	$430.00M	USD	Annual
Repayments of debt	`RepaymentsOfLongTermDebt`	$87.62M	USD	Annual
Repayments of debt	`RepaymentsOfLongTermDebt`	$48.27M	USD	Annual
Repayments of debt	`RepaymentsOfLongTermDebt`	$77.75M	USD	Annual
Distributions to noncontrolling interest owners	`PaymentsToMinorityShareholders`	$2.48M	USD	Annual
Distributions to noncontrolling interest owners	`PaymentsToMinorityShareholders`	$7.36M	USD	Annual
Distributions to noncontrolling interest owners	`PaymentsToMinorityShareholders`	$432.00K	USD	Annual
Purchase of treasury stock	`PaymentsForRepurchaseOfCommonStock`	-	USD	Annual
Purchase of treasury stock	`PaymentsForRepurchaseOfCommonStock`	$3.20M	USD	Annual
Purchase of treasury stock	`PaymentsForRepurchaseOfCommonStock`	-	USD	Annual
Debt issuance costs	`PaymentsOfDebtIssuanceCosts`	-	USD	Annual
Debt issuance costs	`PaymentsOfDebtIssuanceCosts`	$1.34M	USD	Annual
Debt issuance costs	`PaymentsOfDebtIssuanceCosts`	$10.69M	USD	Annual
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	$-4.00K	USD	Annual
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	$-199.00K	USD	Annual
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	$9.84M	USD	Annual
Net cash provided by (used in) financing activities	`NetCashProvidedByUsedInFinancingActivities`	$87.91M	USD	Annual
Net cash provided by (used in) financing activities	`NetCashProvidedByUsedInFinancingActivities`	$320.93M	USD	Annual
Net cash provided by (used in) financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-68.34M	USD	Annual
Net change in cash, cash equivalents, and restricted cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$-47.39M	USD	Annual
Net change in cash, cash equivalents, and restricted cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$22.08M	USD	Annual
Net change in cash, cash equivalents, and restricted cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$16.05M	USD	Annual
Cash, cash equivalents, and restricted cash at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$72.64M	USD	Point-in-time
Cash, cash equivalents, and restricted cash at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$50.56M	USD	Point-in-time
Cash, cash equivalents, and restricted cash at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$97.95M	USD	Point-in-time
Cash, cash equivalents, and restricted cash at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$88.69M	USD	Point-in-time
Cash, cash equivalents, and restricted cash at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$72.64M	USD	Point-in-time
Cash, cash equivalents, and restricted cash at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$50.56M	USD	Point-in-time
Cash, cash equivalents, and restricted cash at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$97.95M	USD	Point-in-time
Cash, cash equivalents, and restricted cash at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$88.69M	USD	Point-in-time
Less: restricted cash (Other current assets)	`RestrictedCash`	$6.46M	USD	Point-in-time
Less: restricted cash (Other current assets)	`RestrictedCash`	$4.83M	USD	Point-in-time
Less: restricted cash (Other current assets)	`RestrictedCash`	$6.85M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashAndCashEquivalentsAtCarryingValue`	$81.84M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashAndCashEquivalentsAtCarryingValue`	$66.19M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashAndCashEquivalentsAtCarryingValue`	$45.73M	USD	Point-in-time
Cash paid during the period for interest	`InterestPaidNet`	$17.24M	USD	Annual
Cash paid during the period for interest	`InterestPaidNet`	$11.57M	USD	Annual
Cash paid during the period for interest	`InterestPaidNet`	$26.94M	USD	Annual
Cash paid during the period for income taxes	`IncomeTaxesPaid`	$3.06M	USD	Annual
Cash paid during the period for income taxes	`IncomeTaxesPaid`	$94.00K	USD	Annual
Cash paid during the period for income taxes	`IncomeTaxesPaid`	$4.75M	USD	Annual
Equity consideration transferred	`BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable`	$20.41M	USD	Annual
Equity consideration transferred	`BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable`	$16.20M	USD	Annual
Equity consideration transferred	`BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable`	-	USD	Annual
Notes and deferred payments to sellers	`NoncashOrPartNoncashAcquisitionNotesPayableAndDeferredPaymentsIncurred`	$10.00M	USD	Annual
Notes and deferred payments to sellers	`NoncashOrPartNoncashAcquisitionNotesPayableAndDeferredPaymentsIncurred`	-	USD	Annual
Notes and deferred payments to sellers	`NoncashOrPartNoncashAcquisitionNotesPayableAndDeferredPaymentsIncurred`	-	USD	Annual
Tax basis election and other payments due to sellers	`BusinessCombinationConsiderationTransferredTaxGrossUpPaymentAndOtherPaymentsDueToSellers`	$5.01M	USD	Annual
Tax basis election and other payments due to sellers	`BusinessCombinationConsiderationTransferredTaxGrossUpPaymentAndOtherPaymentsDueToSellers`	-	USD	Annual
Tax basis election and other payments due to sellers	`BusinessCombinationConsiderationTransferredTaxGrossUpPaymentAndOtherPaymentsDueToSellers`	$10.83M	USD	Annual
Capital expenditures	`CapitalExpendituresIncurredButNotYetPaid`	-	USD	Annual
Capital expenditures	`CapitalExpendituresIncurredButNotYetPaid`	$264.00K	USD	Annual
Capital expenditures	`CapitalExpendituresIncurredButNotYetPaid`	-	USD	Annual

Stockholders Equity 31 line items

Line Item	Tag	Value	Unit	Period
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$221.21M	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$172.26M	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$360.23M	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$268.73M	USD	Point-in-time
Net income	`ProfitLoss`	$65.12M	USD	Annual
Net income	`ProfitLoss`	$40.70M	USD	Annual
Net income	`ProfitLoss`	$42.90M	USD	Annual
Change in interest rate swap	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax`	$3.54M	USD	Annual
Change in interest rate swap	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax`	$-5.05M	USD	Annual
Change in interest rate swap	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax`	$-209.00K	USD	Annual
Stock-based compensation	`StockIssuedDuringPeriodValueShareBasedCompensationGross`	$11.77M	USD	Annual
Stock-based compensation	`StockIssuedDuringPeriodValueShareBasedCompensationGross`	$11.64M	USD	Annual
Stock-based compensation	`StockIssuedDuringPeriodValueShareBasedCompensationGross`	$3.79M	USD	Annual
Distributions to owners	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$432.00K	USD	Annual
Distributions to owners	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$7.36M	USD	Annual
Distributions to owners	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$2.48M	USD	Annual
Purchase of treasury stock	`StockRepurchasedDuringPeriodValue`	$3.20M	USD	Annual
Stock issued for acquisition	`StockIssuedDuringPeriodValueAcquisitions`	$20.41M	USD	Annual
Stock issued for acquisition	`StockIssuedDuringPeriodValueAcquisitions`	$16.20M	USD	Annual
Issuance of stock	`StockIssuedDuringPeriodValueNewIssues`	$152.00K	USD	Annual
Issuance of stock	`StockIssuedDuringPeriodValueNewIssues`	$475.00K	USD	Annual
Issuance of stock	`StockIssuedDuringPeriodValueNewIssues`	$530.00K	USD	Annual
Shares withheld for taxes	`AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation`	$7.34M	USD	Annual
Shares withheld for taxes	`AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation`	$1.11M	USD	Annual
Shares withheld for taxes	`AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation`	$1.99M	USD	Annual
Other	`AdjustmentsToAdditionalPaidInCapitalOther`	$-3.00K	USD	Annual
Other	`AdjustmentsToAdditionalPaidInCapitalOther`	$-87.00K	USD	Annual
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$221.21M	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$172.26M	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$360.23M	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$268.73M	USD	Point-in-time

Comprehensive Income 15 line items

Line Item	Tag	Value	Unit	Period
Net income	`ProfitLoss`	$65.12M	USD	Annual
Net income	`ProfitLoss`	$40.70M	USD	Annual
Net income	`ProfitLoss`	$42.90M	USD	Annual
Change in interest rate swap	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax`	$3.54M	USD	Annual
Change in interest rate swap	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax`	$-5.05M	USD	Annual
Change in interest rate swap	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax`	$-209.00K	USD	Annual
Total comprehensive income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$68.66M	USD	Annual
Total comprehensive income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$37.85M	USD	Annual
Total comprehensive income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$40.49M	USD	Annual
Less: Net income attributable to noncontrolling interests	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$794.00K	USD	Annual
Less: Net income attributable to noncontrolling interests	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$2.48M	USD	Annual
Less: Net income attributable to noncontrolling interests	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$598.00K	USD	Annual
Comprehensive income attributable to Sterling common stockholders	`ComprehensiveIncomeNetOfTax`	$39.69M	USD	Annual
Comprehensive income attributable to Sterling common stockholders	`ComprehensiveIncomeNetOfTax`	$66.19M	USD	Annual
Comprehensive income attributable to Sterling common stockholders	`ComprehensiveIncomeNetOfTax`	$37.25M	USD	Annual

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