$AMRC
Ameresco, Inc. Stock $amrc

$amrc Overview Financials Valuation SEC Filings Company Website

2013 Q2 Form 10-Q Financial Statement

#000148813913000026 Filed on August 09, 2013

Income Statement

Concept	2013 Q2	2012 Q2	2012 Q1
Revenue	$126.3M	$164.1M	$146.6M
YoY Change	-23.06%	99064.86%	100004.49%
Cost Of Revenue	$102.9M	$132.9M	$117.3M
YoY Change	-22.62%	-0.29%	-0.92%
Gross Profit	$23.38M	$31.16M	$29.22M
YoY Change	-24.95%	-3.09%	4.43%
Gross Profit Margin	18.52%	18.99%	19.94%
Selling, General & Admin	$24.60M	$19.10M	$21.60M
YoY Change	28.8%	41.48%	41.18%
% of Gross Profit	105.2%	61.3%	73.91%
Research & Development		$3.800M	$4.200M
YoY Change		-28.3%	-4.55%
% of Gross Profit		12.2%	14.37%
Depreciation & Amortization	$4.150M	$4.769M	$4.939M
YoY Change	-12.98%	67.35%	84.3%
% of Gross Profit	17.75%	15.31%	16.9%
Operating Expenses	$25.29M	$22.90M	$25.80M
YoY Change	10.45%	121743.34%	130992.58%
Operating Profit	-$1.910M	$8.259M	$3.425M
YoY Change	-123.13%	61725.3%	41147.62%
Interest Expense	$1.013M	$929.6K	$1.209M
YoY Change	8.97%	-3.12%	-234.3%
% of Operating Profit		11.26%	35.29%
Other Income/Expense, Net	-$448.0K	-$1.413M	-$1.108M
YoY Change	-68.29%	98624.25%	175452.93%
Pretax Income	-$2.358M	$6.846M	$2.317M
YoY Change	-134.44%	57298.17%	30101.39%
Income Tax	-$577.0K	$2.027M	$581.9K
% Of Pretax Income		29.6%	25.11%
Net Earnings	-$1.781M	$4.819M	$1.735M
YoY Change	-136.96%	57337.43%	31121.88%
Net Earnings / Revenue	-1.41%	2.94%	1.18%
Basic Earnings Per Share	-$0.04	$0.11	$0.04
Diluted Earnings Per Share	-$0.04	$0.10	$0.04
COMMON SHARES
Basic Shares Outstanding	45.47M shares	44.54M shares	44.15M shares
Diluted Shares Outstanding	45.47M shares	46.36M shares	46.13M shares

Balance Sheet

Concept	2013 Q2	2012 Q2	2012 Q1
SHORT-TERM ASSETS
Cash & Short-Term Investments	$17.60M	$28.90M	$38.40M
YoY Change	-39.1%	-51.67%	31.06%
Cash & Equivalents	$17.63M	$28.91M	$38.44M
Short-Term Investments
Other Short-Term Assets	$105.7M	$96.40M	$83.60M
YoY Change	9.65%	15.31%	6.91%
Inventory	$11.55M	$9.146M	$8.776M
Prepaid Expenses	$11.02M	$10.68M	$6.184M
Receivables	$101.5M	$120.7M	$105.5M
Other Receivables	$5.800M	$8.200M	$10.30M
Total Short-Term Assets	$242.2M	$263.3M	$246.6M
YoY Change	-8.02%	0.65%	13.54%
LONG-TERM ASSETS
Property, Plant & Equipment	$9.422M	$8.186M	$7.695M
YoY Change	15.1%	32.66%	-94.83%
Goodwill	$55.24M	$47.88M	$47.92M
YoY Change	15.38%	132.63%
Intangibles	$11.49M	$9.757M	$11.07M
YoY Change	17.77%
Long-Term Investments
YoY Change
Other Assets	$5.141M	$4.713M	$3.990M
YoY Change	9.08%	-2.92%	-46.08%
Total Long-Term Assets	$377.7M	$397.3M	$379.4M
YoY Change	-4.93%	-0.4%	-3.47%
TOTAL ASSETS
Total Short-Term Assets	$242.2M	$263.3M	$246.6M
Total Long-Term Assets	$377.7M	$397.3M	$379.4M
Total Assets	$619.9M	$660.7M	$626.0M
YoY Change	-6.16%	0.01%	2.59%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$67.32M	$80.90M	$71.42M
YoY Change	-16.78%	4.01%	-1.35%
Accrued Expenses	$10.67M	$11.97M	$10.76M
YoY Change	-10.88%	70.3%	-16.62%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$13.92M	$12.27M	$12.37M
YoY Change	13.48%	11.16%	12.46%
Total Short-Term Liabilities	$114.4M	$140.4M	$122.5M
YoY Change	-18.47%	12.94%	0.98%
LONG-TERM LIABILITIES
Long-Term Debt	$186.4M	$207.8M	$197.3M
YoY Change	-10.33%	-21.1%	-14.93%
Other Long-Term Liabilities	$26.00M	$28.64M	$28.14M
YoY Change	-9.22%	-7.58%	-22.7%
Total Long-Term Liabilities	$243.5M	$271.8M	$225.4M
YoY Change	-10.4%	-7.69%	-15.98%
TOTAL LIABILITIES
Total Short-Term Liabilities	$114.4M	$140.4M	$122.5M
Total Long-Term Liabilities	$243.5M	$271.8M	$225.4M
Total Liabilities	$357.9M	$412.1M	$260.8M
YoY Change	-13.15%	30.03%	-35.8%
SHAREHOLDERS EQUITY
Retained Earnings	$173.5M	$168.0M	$162.8M
YoY Change	3.25%	19.38%
Common Stock
YoY Change
Preferred Stock
YoY Change
Treasury Stock (at cost)	$9.183M	$9.183M	-$9.183M
YoY Change	0.0%	-200.0%
Treasury Stock Shares	4.833M shares	4.833M shares	4.833M shares
Shareholders Equity	$262.0M	$248.5M	$242.6M
YoY Change
Total Liabilities & Shareholders Equity	$619.9M	$660.7M	$626.0M
YoY Change	-6.16%	0.01%	2.59%

Cashflow Statement

Concept	2013 Q2	2012 Q2	2012 Q1
OPERATING ACTIVITIES
Net Income	-$1.781M	$4.819M	$1.735M
YoY Change	-136.96%	57337.43%	31121.88%
Depreciation, Depletion And Amortization	$4.150M	$4.769M	$4.939M
YoY Change	-12.98%	67.35%	84.3%
Cash From Operating Activities	$6.883M	$6.267M	$33.21M
YoY Change	9.83%	294.28%	-229.61%
INVESTING ACTIVITIES
Capital Expenditures	$446.2K	$1.105M	$1.277M
YoY Change	-59.62%	21.25%	42.59%
Acquisitions	$7.538M	$0.00	$0.00
YoY Change
Other Investing Activities	-$7.240M	$0.00	$3.840M
YoY Change			-42.69%
Cash From Investing Activities	-$26.45M	-$10.80M	-$7.441M
YoY Change	144.9%	19.46%	841.0%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net	$2.935M	$1.327M	$807.5K
YoY Change	121.09%	-19.19%	-11.45%
Cash From Financing Activities	$17.13M	-$4.939M	-$13.71M
YoY Change	-446.94%	-113.04%	-227.45%
NET CHANGE
Cash From Operating Activities	$6.883M	$6.267M	$33.21M
Cash From Investing Activities	-$26.45M	-$10.80M	-$7.441M
Cash From Financing Activities	$17.13M	-$4.939M	-$13.71M
Net Change In Cash	-$2.433M	-$9.472M	$12.06M
YoY Change	-74.31%	-131.14%	-177.02%
FREE CASH FLOW
Cash From Operating Activities	$6.883M	$6.267M	$33.21M
Capital Expenditures	$446.2K	$1.105M	$1.277M
Free Cash Flow	$6.437M	$5.162M	$31.93M
YoY Change	24.7%	661.19%	-220.42%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	758735	USD
CY2013Q2	us-gaap	Accounts Payable Current AccountsPayableCurrent	67318276	USD
CY2012Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	101007455	USD
CY2012Q4	us-gaap	Accounts Receivable Net AccountsReceivableNet	84124627	USD
CY2013Q2	us-gaap	Accounts Receivable Net AccountsReceivableNet	76760410	USD
CY2013Q2	us-gaap	Accounts Receivable Net Noncurrent AccountsReceivableNetNoncurrent	60900144	USD
CY2012Q4	us-gaap	Accounts Receivable Net Noncurrent AccountsReceivableNetNoncurrent	91854808	USD
CY2012Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	13157024	USD
CY2013Q2	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	10667868	USD
CY2012Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	713194	USD
CY2013Q2	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	1697350	USD
CY2013Q2	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	96024019	USD
CY2012Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	93141432	USD
	us-gaap	Additions To Noncurrent Assets AdditionsToNoncurrentAssets	31579303	USD
CY2013Q2	us-gaap	Additions To Noncurrent Assets AdditionsToNoncurrentAssets	18920071	USD
CY2012Q2	us-gaap	Additions To Noncurrent Assets AdditionsToNoncurrentAssets	10800732	USD
	us-gaap	Additions To Noncurrent Assets AdditionsToNoncurrentAssets	18241445	USD
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	1632871	USD
CY2012Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	1174458	USD
CY2012Q2	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	1101413	USD
CY2011Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	1135391	USD
CY2013Q2	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	1520632	USD
CY2013Q2	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	248314	USD
CY2012Q2	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	138191	USD
	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	332462	USD
	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	271478	USD
CY2013Q2	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	898038	USD
CY2012Q2	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1314778	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1789075	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2971022	USD
	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	1194338	shares
	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	694688	shares
CY2012Q2	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	2532853	shares
CY2013Q2	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	2475556	shares
CY2013Q2	us-gaap	Asset Retirement Obligation AssetRetirementObligation	0	USD
CY2012Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	0	USD
CY2013Q2	us-gaap	Assets Assets	619949075	USD
CY2012Q4	us-gaap	Assets Assets	675472003	USD
CY2012Q2	us-gaap	Assets Assets	660675789	USD
CY2012Q4	us-gaap	Assets Current AssetsCurrent	297842841	USD
CY2013Q2	us-gaap	Assets Current AssetsCurrent	242223533	USD
CY2012Q4	us-gaap	Assets Noncurrent AssetsNoncurrent	377629162	USD
CY2013Q2	us-gaap	Assets Noncurrent AssetsNoncurrent	377725542	USD
CY2013Q2	us-gaap	Billings In Excess Of Cost Current BillingsInExcessOfCostCurrent	22525255	USD
CY2012Q4	us-gaap	Billings In Excess Of Cost Current BillingsInExcessOfCostCurrent	22271655	USD
CY2013Q2	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	17629963	USD
CY2012Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	63347645	USD
CY2012Q2	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	28909987	USD
CY2012Q1	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	38435362	USD
CY2013Q1	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	20963260	USD
CY2011Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	26277366	USD
CY2012Q2	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-9525375	USD
CY2013Q2	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-3333297	USD
	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-45717682	USD
	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	2632621	USD
CY2013Q2	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2012Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2010Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.0001
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-2720667	USD
CY2012	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	6993284	USD
CY2012Q2	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	3749055	USD
CY2013Q2	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-769148	USD
CY2013Q2	us-gaap	Construction And Development Costs ConstructionAndDevelopmentCosts	5039217	USD
CY2012Q2	us-gaap	Construction And Development Costs ConstructionAndDevelopmentCosts	3830866	USD
	us-gaap	Construction And Development Costs ConstructionAndDevelopmentCosts	8047218	USD
	us-gaap	Construction And Development Costs ConstructionAndDevelopmentCosts	9320382	USD
CY2013Q2	us-gaap	Construction In Progress Gross ConstructionInProgressGross	11458555	USD
CY2012Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	9038725	USD
CY2012Q4	us-gaap	Contract Receivable Retainage ContractReceivableRetainage	23197784	USD
CY2013Q2	us-gaap	Contract Receivable Retainage ContractReceivableRetainage	24758030	USD
CY2012Q2	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	132942044	USD
CY2013Q2	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	102870118	USD
	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	191486770	USD
	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	250291603	USD
CY2013Q2	us-gaap	Cost Of Services Depreciation CostOfServicesDepreciation	2868716	USD
CY2012Q2	us-gaap	Cost Of Services Depreciation CostOfServicesDepreciation	2850977	USD
	us-gaap	Cost Of Services Depreciation CostOfServicesDepreciation	6879151	USD
	us-gaap	Cost Of Services Depreciation CostOfServicesDepreciation	5456007	USD
CY2013Q2	us-gaap	Cost Of Services Energy Services CostOfServicesEnergyServices	69753489	USD
CY2012Q2	us-gaap	Cost Of Services Energy Services CostOfServicesEnergyServices	97873272	USD
	us-gaap	Cost Of Services Energy Services CostOfServicesEnergyServices	125208747	USD
	us-gaap	Cost Of Services Energy Services CostOfServicesEnergyServices	187493047	USD
CY2012Q4	us-gaap	Costs In Excess Of Billings On Uncompleted Contracts Or Programs CostsInExcessOfBillingsOnUncompletedContractsOrPrograms	62096284	USD
CY2013Q2	us-gaap	Costs In Excess Of Billings On Uncompleted Contracts Or Programs CostsInExcessOfBillingsOnUncompletedContractsOrPrograms	52564885	USD
CY2012Q4	us-gaap	Deferred Finance Costs Noncurrent Net DeferredFinanceCostsNoncurrentNet	5746177	USD
CY2013Q2	us-gaap	Deferred Finance Costs Noncurrent Net DeferredFinanceCostsNoncurrentNet	6103850	USD
CY2012Q2	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	43697	USD
CY2013Q2	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-1821364	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-2870689	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-506631	USD
CY2012Q4	us-gaap	Deferred Tax Assets Net Current DeferredTaxAssetsNetCurrent	5190718	USD
CY2013Q2	us-gaap	Deferred Tax Assets Net Current DeferredTaxAssetsNetCurrent	4480218	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	24888229	USD
CY2013Q2	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	23273100	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	10278480	USD
CY2013Q2	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	4580462	USD
CY2012Q2	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	4769256	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	9708503	USD
CY2013Q2	us-gaap	Depreciation Nonproduction DepreciationNonproduction	813708	USD
CY2012Q2	us-gaap	Depreciation Nonproduction DepreciationNonproduction	603501	USD
	us-gaap	Depreciation Nonproduction DepreciationNonproduction	1281474	USD
	us-gaap	Depreciation Nonproduction DepreciationNonproduction	1610254	USD
CY2013Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.04
CY2012Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.11
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.08
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.15
CY2013Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.04
CY2012Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.10
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.08
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.14
CY2012Q2	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-53234	USD
CY2013Q2	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-900330	USD
	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	47059	USD
	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	442921	USD
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.285
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.245
CY2012Q2	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.296
CY2013Q2	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.245
	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	297011	USD
CY2013Q2	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	158231	USD
CY2012Q2	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	448916	USD
	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	297011	USD
	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	1651513	USD
CY2012Q2	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	448916	USD
CY2013Q2	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	158231	USD
	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	1651513	USD
	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	297011	USD
CY2013Q2	us-gaap	Financing Receivable Significant Sales FinancingReceivableSignificantSales	4110910	USD
CY2012Q2	us-gaap	Financing Receivable Significant Sales FinancingReceivableSignificantSales	11705599	USD
	us-gaap	Financing Receivable Significant Sales FinancingReceivableSignificantSales	13784645	USD
	us-gaap	Financing Receivable Significant Sales FinancingReceivableSignificantSales	25775736	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	9742878	USD
CY2013Q2	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	11490617	USD
	us-gaap	Finite Lived Intangible Assets Translation Adjustments FiniteLivedIntangibleAssetsTranslationAdjustments	160695	USD
	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	1253059	USD
	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	-119752	USD
CY2013Q2	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	863972	USD
CY2012Q2	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	-349618	USD
CY2012Q2	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	800000	USD
CY2013Q2	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	0	USD
	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	800000	USD
	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	0	USD
CY2013Q2	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	9477788	USD
CY2012Q2	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	7509639	USD
	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	17784690	USD
	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	14723095	USD
CY2013Q2	us-gaap	Goodwill Goodwill	55239777	USD
CY2012Q4	us-gaap	Goodwill Goodwill	48968390	USD
	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	6010177	USD
CY2012	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	1016325	USD
	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2013Q2	us-gaap	Gross Profit GrossProfit	23382576	USD
CY2012Q2	us-gaap	Gross Profit GrossProfit	31157861	USD
	us-gaap	Gross Profit GrossProfit	44901447	USD
	us-gaap	Gross Profit GrossProfit	60381671	USD
CY2012Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	6845880	USD
CY2013Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-2357752	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	9162931	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-4904562	USD
CY2012Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2026630	USD
CY2013Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-577001	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-1199739	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2608517	USD
CY2012Q4	us-gaap	Income Tax Receivable IncomeTaxReceivable	5385242	USD
CY2013Q2	us-gaap	Income Tax Receivable IncomeTaxReceivable	5760545	USD
CY2012Q2	us-gaap	Income Taxes Paid IncomeTaxesPaid	481209	USD
CY2013Q2	us-gaap	Income Taxes Paid IncomeTaxesPaid	679279	USD
	us-gaap	Income Taxes Paid IncomeTaxesPaid	900680	USD
	us-gaap	Income Taxes Paid IncomeTaxesPaid	506921	USD
CY2012Q2	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	11766758	USD
CY2013Q2	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	1912268	USD
	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-36185982	USD
	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-8760740	USD
CY2013Q2	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-11042004	USD
CY2012Q2	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	11967540	USD
	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-12569643	USD
	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-6855679	USD
CY2012Q2	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	2476787	USD
CY2013Q2	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	700716	USD
	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	3083458	USD
	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	-365038	USD
CY2012Q2	us-gaap	Increase Decrease In Billing In Excess Of Cost Of Earnings IncreaseDecreaseInBillingInExcessOfCostOfEarnings	7346139	USD
CY2013Q2	us-gaap	Increase Decrease In Billing In Excess Of Cost Of Earnings IncreaseDecreaseInBillingInExcessOfCostOfEarnings	-590444	USD
	us-gaap	Increase Decrease In Billing In Excess Of Cost Of Earnings IncreaseDecreaseInBillingInExcessOfCostOfEarnings	8243890	USD
	us-gaap	Increase Decrease In Billing In Excess Of Cost Of Earnings IncreaseDecreaseInBillingInExcessOfCostOfEarnings	371453	USD
CY2013Q2	us-gaap	Increase Decrease In Construction Payables IncreaseDecreaseInConstructionPayables	-785712	USD
CY2012Q2	us-gaap	Increase Decrease In Construction Payables IncreaseDecreaseInConstructionPayables	-324126	USD
	us-gaap	Increase Decrease In Construction Payables IncreaseDecreaseInConstructionPayables	-2430350	USD
	us-gaap	Increase Decrease In Construction Payables IncreaseDecreaseInConstructionPayables	-1156085	USD
CY2012Q2	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	369359	USD
CY2013Q2	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	54410	USD
	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	2046584	USD
	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	510224	USD
CY2013Q2	us-gaap	Increase Decrease In Other Accrued Liabilities IncreaseDecreaseInOtherAccruedLiabilities	1293096	USD
CY2012Q2	us-gaap	Increase Decrease In Other Accrued Liabilities IncreaseDecreaseInOtherAccruedLiabilities	-345461	USD
	us-gaap	Increase Decrease In Other Accrued Liabilities IncreaseDecreaseInOtherAccruedLiabilities	-75507	USD
	us-gaap	Increase Decrease In Other Accrued Liabilities IncreaseDecreaseInOtherAccruedLiabilities	525181	USD
CY2012Q2	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	766682	USD
CY2013Q2	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	912456	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	941282	USD
CY2013Q2	us-gaap	Increase Decrease In Other Receivables IncreaseDecreaseInOtherReceivables	8688672	USD
CY2012Q2	us-gaap	Increase Decrease In Other Receivables IncreaseDecreaseInOtherReceivables	5583166	USD
	us-gaap	Increase Decrease In Other Receivables IncreaseDecreaseInOtherReceivables	-12197386	USD
	us-gaap	Increase Decrease In Other Receivables IncreaseDecreaseInOtherReceivables	-9931189	USD
CY2012Q2	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	4504563	USD
CY2013Q2	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	2402095	USD
	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	1679160	USD
	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	1526332	USD
CY2013Q2	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	2774172	USD
CY2012Q2	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	3613426	USD
	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	1572574	USD
	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	-2079382	USD
CY2013Q2	us-gaap	Increase Decrease In Restricted Cash For Operating Activities IncreaseDecreaseInRestrictedCashForOperatingActivities	-10486117	USD
CY2012Q2	us-gaap	Increase Decrease In Restricted Cash For Operating Activities IncreaseDecreaseInRestrictedCashForOperatingActivities	-14069843	USD
	us-gaap	Increase Decrease In Restricted Cash For Operating Activities IncreaseDecreaseInRestrictedCashForOperatingActivities	-18004938	USD
	us-gaap	Increase Decrease In Restricted Cash For Operating Activities IncreaseDecreaseInRestrictedCashForOperatingActivities	-24152657	USD
CY2012Q2	us-gaap	Incremental Common Shares Attributable To Conversion Of Preferred Stock IncrementalCommonSharesAttributableToConversionOfPreferredStock	0	shares
CY2013Q2	us-gaap	Incremental Common Shares Attributable To Conversion Of Preferred Stock IncrementalCommonSharesAttributableToConversionOfPreferredStock	0	shares
	us-gaap	Incremental Common Shares Attributable To Conversion Of Preferred Stock IncrementalCommonSharesAttributableToConversionOfPreferredStock	0	shares
	us-gaap	Incremental Common Shares Attributable To Conversion Of Preferred Stock IncrementalCommonSharesAttributableToConversionOfPreferredStock	0	shares
CY2013Q2	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	0	shares
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	1800873	shares
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	0	shares
CY2012Q2	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	1818298	shares
CY2013Q2	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	11490617	USD
CY2012Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	9742878	USD
	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	434426	USD
CY2012Q2	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	381852	USD
CY2013Q2	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	250716	USD
	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	715394	USD
	us-gaap	Interest Expense InterestExpense	2025135	USD
CY2013Q2	us-gaap	Interest Expense InterestExpense	1099302	USD
CY2012Q2	us-gaap	Interest Expense InterestExpense	929617	USD
	us-gaap	Interest Expense InterestExpense	2138330	USD
CY2013Q2	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	-1064390	USD
	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	-1833642	USD
	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	-2129253	USD
CY2012Q2	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	-924935	USD
	us-gaap	Interest Income Operating InterestIncomeOperating	191493	USD
CY2013Q2	us-gaap	Interest Income Operating InterestIncomeOperating	34912	USD
CY2012Q2	us-gaap	Interest Income Operating InterestIncomeOperating	4142	USD
	us-gaap	Interest Income Operating InterestIncomeOperating	9077	USD
CY2013Q2	us-gaap	Interest Paid InterestPaid	1566521	USD
CY2012Q2	us-gaap	Interest Paid InterestPaid	1300558	USD
	us-gaap	Interest Paid InterestPaid	2026403	USD
	us-gaap	Interest Paid InterestPaid	2822593	USD
CY2012Q4	us-gaap	Inventory Net InventoryNet	9502289	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-18820035	USD
CY2012Q2	us-gaap	Net Income Loss NetIncomeLoss	4819250	USD
CY2013Q2	us-gaap	Inventory Net InventoryNet	11548873	USD
CY2013Q2	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	619949075	USD
CY2012Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	675472003	USD
CY2013Q2	us-gaap	Liabilities Current LiabilitiesCurrent	114433385	USD
CY2012Q4	us-gaap	Liabilities Current LiabilitiesCurrent	148888812	USD
CY2012Q4	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	264764000	USD
CY2013Q2	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	243493913	USD
CY2013Q2	us-gaap	Long Term Debt LongTermDebt	64447318	USD
CY2012Q4	us-gaap	Long Term Debt LongTermDebt	70539703	USD
CY2012Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	12452678	USD
CY2013Q2	us-gaap	Long Term Debt Current LongTermDebtCurrent	13921986	USD
CY2013Q2	us-gaap	Long Term Debt Fair Value LongTermDebtFairValue	62357971	USD
CY2012Q4	us-gaap	Long Term Debt Fair Value LongTermDebtFairValue	66817614	USD
CY2012Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	201922172	USD
CY2013Q2	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	186354568	USD
CY2013Q2	us-gaap	Minority Interest MinorityInterest	13047	USD
CY2012Q4	us-gaap	Minority Interest MinorityInterest	-27583	USD
	us-gaap	Nature Of Operations NatureOfOperations	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;padding-bottom:8px;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">DESCRIPTION OF BUSINESS</font></div><div style="line-height:120%;padding-bottom:8px;text-align:left;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Ameresco, Inc. (including its subsidiaries, the “Company”) was organized as a Delaware corporation on April 25, 2000. The Company is a provider of energy efficiency solutions for facilities throughout North America. The Company provides solutions, both products and services, that enable customers to reduce their energy consumption, lower their operating and maintenance costs and realize environmental benefits. The Company’s comprehensive set of services includes upgrades to a facility’s energy infrastructure and the construction and operation of small-scale renewable energy plants. It also sells certain photovoltaic equipment worldwide. The Company operates in the United States, Canada and Europe.</font></div><div style="line-height:120%;padding-bottom:8px;text-align:left;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The Company is compensated through a variety of methods, including: 1) direct payments based on fee-for-services contracts (utilizing lump-sum or cost-plus pricing methodologies); 2) the sale of energy from the Company’s generating assets; and 3) direct payment for photovoltaic equipment and systems.</font></div><div style="line-height:120%;padding-top:8px;text-align:left;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The condensed consolidated financial statements as of </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">June 30, 2013</font><font style="font-family:inherit;font-size:10pt;"> and December 31, 2012, and for the three and </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">six months ended June 30, 2013</font><font style="font-family:inherit;font-size:10pt;"> and </font><font style="font-family:Times New Roman;font-size:10pt;color:#000000;text-decoration:none;">2012</font><font style="font-family:inherit;font-size:10pt;">, include the accounts of Ameresco Inc., its wholly owned subsidiaries and one subsidiary for which there is a minority shareholder. All significant intercompany transactions have been eliminated. The condensed consolidated financial statements as of </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">June 30, 2013</font><font style="font-family:inherit;font-size:10pt;">, and for the three and </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">six months ended June 30, 2013</font><font style="font-family:inherit;font-size:10pt;"> and </font><font style="font-family:Times New Roman;font-size:10pt;color:#000000;text-decoration:none;">2012</font><font style="font-family:inherit;font-size:10pt;">, are unaudited. In addition, certain information and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States (“GAAP”) have been condensed or omitted. The interim condensed consolidated financial statements reflect all adjustments that are, in the opinion of management, necessary for a fair presentation in conformity with GAAP. The interim condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements for the year ended December 31, 2012, and notes thereto, included in the Company’s annual report on Form 10-K for the year ended December 31, 2012 filed with the Securities and Exchange Commission on March 18, 2013 (the “2012 Form 10-K”). The results of operations for the interim periods should not be considered indicative of results to be expected for the full year.</font></div></div>
CY2013Q2	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	17134679	USD
CY2012Q2	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-4938824	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	13577836	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-18649169	USD
CY2012Q2	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-10800732	USD
CY2013Q2	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-26451087	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-18241445	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-40918404	USD
CY2013Q2	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	6883441	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	39476176	USD
CY2012Q2	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	6267415	USD
CY2013Q2	us-gaap	Net Income Loss NetIncomeLoss	-1780751	USD
	us-gaap	Net Income Loss NetIncomeLoss	6554414	USD
	us-gaap	Net Income Loss NetIncomeLoss	-3704823	USD
CY2012	us-gaap	Net Income Loss NetIncomeLoss	6554414	USD
CY2012Q2	us-gaap	Noncash Or Part Noncash Acquisition Accounts Receivable Acquired1 NoncashOrPartNoncashAcquisitionAccountsReceivableAcquired1	0	USD
CY2013Q2	us-gaap	Noncash Or Part Noncash Acquisition Accounts Receivable Acquired1 NoncashOrPartNoncashAcquisitionAccountsReceivableAcquired1	360924	USD
	us-gaap	Noncash Or Part Noncash Acquisition Accounts Receivable Acquired1 NoncashOrPartNoncashAcquisitionAccountsReceivableAcquired1	0	USD
	us-gaap	Noncash Or Part Noncash Acquisition Accounts Receivable Acquired1 NoncashOrPartNoncashAcquisitionAccountsReceivableAcquired1	558621	USD
CY2013Q2	us-gaap	Noncash Or Part Noncash Acquisition Fixed Assets Acquired1 NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1	75054	USD
CY2012Q2	us-gaap	Noncash Or Part Noncash Acquisition Fixed Assets Acquired1 NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1	0	USD
	us-gaap	Noncash Or Part Noncash Acquisition Fixed Assets Acquired1 NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1	137952	USD
	us-gaap	Noncash Or Part Noncash Acquisition Fixed Assets Acquired1 NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1	0	USD
CY2012Q2	us-gaap	Noncash Or Part Noncash Acquisition Intangible Assets Acquired1 NoncashOrPartNoncashAcquisitionIntangibleAssetsAcquired1	0	USD
CY2013Q2	us-gaap	Noncash Or Part Noncash Acquisition Intangible Assets Acquired1 NoncashOrPartNoncashAcquisitionIntangibleAssetsAcquired1	3087509	USD
	us-gaap	Noncash Or Part Noncash Acquisition Intangible Assets Acquired1 NoncashOrPartNoncashAcquisitionIntangibleAssetsAcquired1	3697509	USD
	us-gaap	Noncash Or Part Noncash Acquisition Intangible Assets Acquired1 NoncashOrPartNoncashAcquisitionIntangibleAssetsAcquired1	0	USD
CY2013Q2	us-gaap	Noncash Or Part Noncash Acquisition Net Nonmonetary Assets Acquired Liabilities Assumed1 NoncashOrPartNoncashAcquisitionNetNonmonetaryAssetsAcquiredLiabilitiesAssumed1	7537516	USD
CY2012Q2	us-gaap	Noncash Or Part Noncash Acquisition Net Nonmonetary Assets Acquired Liabilities Assumed1 NoncashOrPartNoncashAcquisitionNetNonmonetaryAssetsAcquiredLiabilitiesAssumed1	0	USD
	us-gaap	Noncash Or Part Noncash Acquisition Net Nonmonetary Assets Acquired Liabilities Assumed1 NoncashOrPartNoncashAcquisitionNetNonmonetaryAssetsAcquiredLiabilitiesAssumed1	9345601	USD
	us-gaap	Noncash Or Part Noncash Acquisition Net Nonmonetary Assets Acquired Liabilities Assumed1 NoncashOrPartNoncashAcquisitionNetNonmonetaryAssetsAcquiredLiabilitiesAssumed1	0	USD
CY2012Q2	us-gaap	Noncash Or Part Noncash Acquisition Payables Assumed1 NoncashOrPartNoncashAcquisitionPayablesAssumed1	0	USD
CY2013Q2	us-gaap	Noncash Or Part Noncash Acquisition Payables Assumed1 NoncashOrPartNoncashAcquisitionPayablesAssumed1	654563	USD
	us-gaap	Noncash Or Part Noncash Acquisition Payables Assumed1 NoncashOrPartNoncashAcquisitionPayablesAssumed1	0	USD
	us-gaap	Noncash Or Part Noncash Acquisition Payables Assumed1 NoncashOrPartNoncashAcquisitionPayablesAssumed1	968539	USD
CY2013Q2	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-448732	USD
CY2012Q2	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-1412744	USD
	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-913045	USD
	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-2520483	USD
	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	4	segment
CY2012Q2	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	155841281	USD
	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	298989860	USD
CY2013Q2	us-gaap	Operating Expenses OperatingExpenses	25291596	USD
CY2012Q2	us-gaap	Operating Expenses OperatingExpenses	22899237	USD
	us-gaap	Operating Expenses OperatingExpenses	48698257	USD
	us-gaap	Operating Expenses OperatingExpenses	48892964	USD
CY2013Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	-1909020	USD
CY2012Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	8258624	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	11683414	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	-3991517	USD
CY2012Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	4654709	USD
CY2013Q2	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	5140628	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-1547030	USD
CY2012	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-128916	USD
CY2012Q2	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-659513	USD
CY2013Q2	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-595042	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	984156	USD
CY2012	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	438870	USD
CY2012Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-1070195	USD
CY2013Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	1011603	USD
CY2012	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	567786	USD
	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	2531186	USD
CY2013Q2	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	1606645	USD
CY2012Q2	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-410682	USD
CY2013Q2	us-gaap	Other Deferred Credits Noncurrent OtherDeferredCreditsNoncurrent	7864941	USD
CY2012Q4	us-gaap	Other Deferred Credits Noncurrent OtherDeferredCreditsNoncurrent	7590730	USD
CY2012Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	30362869	USD
CY2013Q2	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	26001304	USD
CY2013Q2	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	464767	USD
CY2012Q2	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	0	USD
	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	20325	USD
	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	504985	USD
CY2013Q2	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	7537516	USD
CY2012Q2	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	USD
	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	9345601	USD
	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	USD
CY2012Q2	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	9695695	USD
CY2013Q2	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	18763159	USD
	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	19698641	USD
	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	31618945	USD
CY2013Q2	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	446197	USD
CY2012Q2	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	1105037	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	2381570	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	1540577	USD
CY2012Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.0001
CY2013Q2	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.0001
CY2013Q2	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	5000000	shares
CY2012Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	5000000	shares
CY2012Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2013Q2	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2012Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2013Q2	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2012Q4	us-gaap	Preferred Stock Value Outstanding PreferredStockValueOutstanding	0	USD
CY2013Q2	us-gaap	Preferred Stock Value Outstanding PreferredStockValueOutstanding	0	USD
CY2013Q2	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	11022225	USD
CY2012Q4	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	9600619	USD
CY2012Q2	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0	USD
CY2013Q2	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	9434434	USD
	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0	USD
	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	9434434	USD
CY2012Q2	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	0	USD
CY2013Q2	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	105931	USD
	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	7700	USD
	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	40630	USD
	us-gaap	Proceeds From Repayments Of Bank Overdrafts ProceedsFromRepaymentsOfBankOverdrafts	0	USD
	us-gaap	Proceeds From Repayments Of Bank Overdrafts ProceedsFromRepaymentsOfBankOverdrafts	-7297122	USD
CY2013Q2	us-gaap	Proceeds From Repayments Of Lines Of Credit ProceedsFromRepaymentsOfLinesOfCredit	15000000	USD
CY2012Q2	us-gaap	Proceeds From Repayments Of Lines Of Credit ProceedsFromRepaymentsOfLinesOfCredit	-1428571	USD
	us-gaap	Proceeds From Repayments Of Lines Of Credit ProceedsFromRepaymentsOfLinesOfCredit	-7857142	USD
	us-gaap	Proceeds From Repayments Of Lines Of Credit ProceedsFromRepaymentsOfLinesOfCredit	15000000	USD
CY2012Q2	us-gaap	Proceeds From Repayments Of Restricted Cash Financing Activities ProceedsFromRepaymentsOfRestrictedCashFinancingActivities	-3367515	USD
CY2013Q2	us-gaap	Proceeds From Repayments Of Restricted Cash Financing Activities ProceedsFromRepaymentsOfRestrictedCashFinancingActivities	-4558805	USD
	us-gaap	Proceeds From Repayments Of Restricted Cash Financing Activities ProceedsFromRepaymentsOfRestrictedCashFinancingActivities	-4798107	USD
	us-gaap	Proceeds From Repayments Of Restricted Cash Financing Activities ProceedsFromRepaymentsOfRestrictedCashFinancingActivities	-5198277	USD
CY2013Q2	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	6500	USD
	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	0	USD
	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	6500	USD
CY2013Q2	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	394603	USD
CY2012Q2	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	735839	USD
	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	1799271	USD
	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	1249752	USD
CY2012Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	9387218	USD
CY2013Q2	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	9422097	USD
CY2012Q4	us-gaap	Property Plant And Equipment Other Net PropertyPlantAndEquipmentOtherNet	207274982	USD
CY2013Q2	us-gaap	Property Plant And Equipment Other Net PropertyPlantAndEquipmentOtherNet	229428429	USD
CY2012Q2	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	24107	USD
CY2013Q2	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	328969	USD
	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	371308	USD
	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	77743	USD
CY2012Q2	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	1327493	USD
CY2013Q2	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	2934948	USD
	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	6740729	USD
	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	2134957	USD
CY2013Q2	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	26239829	USD
CY2012Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	26358908	USD
CY2012Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	177169717	USD
CY2013Q2	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	173464894	USD
CY2013Q2	us-gaap	Salaries And Wages SalariesAndWages	10774591	USD
CY2012Q2	us-gaap	Salaries And Wages SalariesAndWages	11558732	USD
	us-gaap	Salaries And Wages SalariesAndWages	21787892	USD
	us-gaap	Salaries And Wages SalariesAndWages	25927944	USD
CY2013Q2	us-gaap	Sales Revenue Energy Services SalesRevenueEnergyServices	85251138	USD
CY2012Q2	us-gaap	Sales Revenue Energy Services SalesRevenueEnergyServices	119819117	USD
	us-gaap	Sales Revenue Energy Services SalesRevenueEnergyServices	233201787	USD
	us-gaap	Sales Revenue Energy Services SalesRevenueEnergyServices	155071617	USD
CY2012Q2	us-gaap	Sales Revenue Net SalesRevenueNet	164099905	USD
CY2013Q2	us-gaap	Sales Revenue Net SalesRevenueNet	126252694	USD
	us-gaap	Sales Revenue Net SalesRevenueNet	310673274	USD
	us-gaap	Sales Revenue Net SalesRevenueNet	236388217	USD
	amrc	Allowance For Doubtful Accounts Receivable Charge Offs And Other AllowanceForDoubtfulAccountsReceivableChargeOffsAndOther	-25134	USD
CY2013Q2	us-gaap	Share Based Compensation ShareBasedCompensation	664759	USD
CY2012Q2	us-gaap	Share Based Compensation ShareBasedCompensation	892607	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	1335860	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	1674060	USD
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	3309722	shares
CY2013Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	3190465	shares
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	4.986
CY2013Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	5.584
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	1942087	USD
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	83796	shares
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	104360	shares
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	4778143	shares
CY2013Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	4434041	shares
CY2013Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	7.009
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	6.794
CY2013Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber	1216227	shares
CY2013Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageExercisePrice	10.719
	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	3.427
	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	11.769
	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	8.143
CY2013Q2	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Number Of Exercisable Options ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions	3190465	shares
CY2013Q2	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Number Of Outstanding Options ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions	4434041	shares
	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1	P8Y7D
	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	364666	shares
	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	1249752	USD
CY2013Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	262021777	USD
CY2012Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	261819191	USD
CY2012Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	4833284	shares
CY2013Q2	us-gaap	Treasury Stock Shares TreasuryStockShares	4833284	shares
CY2013Q2	us-gaap	Treasury Stock Value TreasuryStockValue	9182571	USD
CY2012Q4	us-gaap	Treasury Stock Value TreasuryStockValue	9182571	USD
CY2012Q2	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	-349618	USD
CY2013Q2	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	294047	USD
	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	683134	USD
	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	-119752	USD
CY2013Q2	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	4900000	USD
CY2012Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	4900000	USD
CY2013Q2	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	3400000	USD
CY2012Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	3400000	USD
	us-gaap	Use Of Estimates UseOfEstimates	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;padding-bottom:8px;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;font-weight:bold;">Use of Estimates</font></div><div style="line-height:120%;padding-bottom:8px;text-align:left;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the reporting period. The most significant estimates and assumptions used in these condensed consolidated financial statements relate to management’s estimates of final construction contract profit in accordance with accounting for long-term contracts, allowance for doubtful accounts, inventory reserves, project development costs, fair value of derivative financial instruments and stock-based awards, impairment of long-lived assets, income taxes and potential liability in conjunction with certain commitments and contingencies. Actual results could differ from those estimates.</font></div></div>
CY2012Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	46359323	shares
CY2013Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	45465529	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	45396765	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	46143932	shares
CY2012Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	44541025	shares
CY2013Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	45465529	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	44343059	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	45396765	shares
	amrc	Allowance For Doubtful Accounts Receivable Charge Offs And Other AllowanceForDoubtfulAccountsReceivableChargeOffsAndOther	-111721	USD
	amrc	Goodwill Foreign Currency Translation And Other Adjustments GoodwillForeignCurrencyTranslationAndOtherAdjustments	261210	USD
	amrc	Government Grant Qualification Requirement Prorated Repayment Effective Period From Date Placed In Service GovernmentGrantQualificationRequirementProratedRepaymentEffectivePeriodFromDatePlacedInService	P5Y
CY2012Q2	amrc	Income Before Income Taxes And Unallocated Corporate Expenses IncomeBeforeIncomeTaxesAndUnallocatedCorporateExpenses	4525291	USD
CY2013Q2	amrc	Income Before Income Taxes And Unallocated Corporate Expenses IncomeBeforeIncomeTaxesAndUnallocatedCorporateExpenses	5448485	USD
CY2013Q2	amrc	Long Term Debt Carrying Value In Excess Of Fair Value LongTermDebtCarryingValueInExcessOfFairValue	2089347	USD
	amrc	Minority Interest In Foreign Subsidiary MinorityInterestInForeignSubsidiary	40630	USD
CY2012Q2	amrc	Noncash Or Part Noncash Acquisition Amount Allocated To Goodwill NoncashOrPartNoncashAcquisitionAmountAllocatedToGoodwill	0	USD
CY2013Q2	amrc	Noncash Or Part Noncash Acquisition Amount Allocated To Goodwill NoncashOrPartNoncashAcquisitionAmountAllocatedToGoodwill	5089049	USD
	amrc	Noncash Or Part Noncash Acquisition Amount Allocated To Goodwill NoncashOrPartNoncashAcquisitionAmountAllocatedToGoodwill	6010177	USD
	amrc	Noncash Or Part Noncash Acquisition Amount Allocated To Goodwill NoncashOrPartNoncashAcquisitionAmountAllocatedToGoodwill	0	USD
CY2013Q2	amrc	Noncash Or Part Noncash Acquisition Billings In Excess Of Cost And Estimated Earnings Assumed NoncashOrPartNoncashAcquisitionBillingsInExcessOfCostAndEstimatedEarningsAssumed	256938	USD
CY2012Q2	amrc	Noncash Or Part Noncash Acquisition Billings In Excess Of Cost And Estimated Earnings Assumed NoncashOrPartNoncashAcquisitionBillingsInExcessOfCostAndEstimatedEarningsAssumed	0	USD
	amrc	Noncash Or Part Noncash Acquisition Billings In Excess Of Cost And Estimated Earnings Assumed NoncashOrPartNoncashAcquisitionBillingsInExcessOfCostAndEstimatedEarningsAssumed	30431	USD
	amrc	Noncash Or Part Noncash Acquisition Billings In Excess Of Cost And Estimated Earnings Assumed NoncashOrPartNoncashAcquisitionBillingsInExcessOfCostAndEstimatedEarningsAssumed	0	USD
CY2013Q2	amrc	Noncash Or Part Noncash Acquisition Costs And Estimated Earnings In Excess Of Billings Acquired NoncashOrPartNoncashAcquisitionCostsAndEstimatedEarningsInExcessOfBillingsAcquired	546608	USD
CY2012Q2	amrc	Noncash Or Part Noncash Acquisition Costs And Estimated Earnings In Excess Of Billings Acquired NoncashOrPartNoncashAcquisitionCostsAndEstimatedEarningsInExcessOfBillingsAcquired	0	USD
	amrc	Noncash Or Part Noncash Acquisition Costs And Estimated Earnings In Excess Of Billings Acquired NoncashOrPartNoncashAcquisitionCostsAndEstimatedEarningsInExcessOfBillingsAcquired	0	USD
	amrc	Noncash Or Part Noncash Acquisition Costs And Estimated Earnings In Excess Of Billings Acquired NoncashOrPartNoncashAcquisitionCostsAndEstimatedEarningsInExcessOfBillingsAcquired	657595	USD
CY2012Q2	amrc	Noncash Or Part Noncash Acquisition Deferred Tax Liabilities Assumed NoncashOrPartNoncashAcquisitionDeferredTaxLiabilitiesAssumed	0	USD
CY2013Q2	amrc	Noncash Or Part Noncash Acquisition Deferred Tax Liabilities Assumed NoncashOrPartNoncashAcquisitionDeferredTaxLiabilitiesAssumed	710127	USD
	amrc	Noncash Or Part Noncash Acquisition Deferred Tax Liabilities Assumed NoncashOrPartNoncashAcquisitionDeferredTaxLiabilitiesAssumed	710127	USD
	amrc	Noncash Or Part Noncash Acquisition Deferred Tax Liabilities Assumed NoncashOrPartNoncashAcquisitionDeferredTaxLiabilitiesAssumed	0	USD
	amrc	Noncash Or Part Noncash Acquisition Prepaid Expenses And Other Current Assets Acquired NoncashOrPartNoncashAcquisitionPrepaidExpensesAndOtherCurrentAssetsAcquired	1710	USD
	amrc	Noncash Or Part Noncash Acquisition Prepaid Expenses And Other Current Assets Acquired NoncashOrPartNoncashAcquisitionPrepaidExpensesAndOtherCurrentAssetsAcquired	0	USD
	amrc	Noncashor Part Noncash Acquisition Accounts Receivable Acquired Retainage NoncashorPartNoncashAcquisitionAccountsReceivableAcquiredRetainage	0	USD
	amrc	Noncashor Part Noncash Acquisition Accounts Receivable Acquired Retainage NoncashorPartNoncashAcquisitionAccountsReceivableAcquiredRetainage	248072	USD
	amrc	Noncashor Part Noncash Acquisition Income Tax Payable NoncashorPartNoncashAcquisitionIncomeTaxPayable	256938	USD
	amrc	Noncashor Part Noncash Acquisition Income Tax Payable NoncashorPartNoncashAcquisitionIncomeTaxPayable	0	USD
	amrc	Number Of Regions Reported In Aggregate NumberOfRegionsReportedInAggregate	4	region
	amrc	Proceeds From Government Grants ProceedsFromGovernmentGrants	1580219	USD
CY2013Q2	amrc	Proceeds From Government Grants ProceedsFromGovernmentGrants	289285	USD
	amrc	Proceeds From Government Grants ProceedsFromGovernmentGrants	2551766	USD
CY2013Q2	amrc	Proceeds From Government Grants And Rebates Received On Project Assets ProceedsFromGovernmentGrantsAndRebatesReceivedOnProjectAssets	289285	USD
CY2012Q2	amrc	Proceeds From Government Grants And Rebates Received On Project Assets ProceedsFromGovernmentGrantsAndRebatesReceivedOnProjectAssets	0	USD
	amrc	Proceeds From Government Grants And Rebates Received On Project Assets ProceedsFromGovernmentGrantsAndRebatesReceivedOnProjectAssets	3838766	USD
	amrc	Proceeds From Government Grants And Rebates Received On Project Assets ProceedsFromGovernmentGrantsAndRebatesReceivedOnProjectAssets	1580219	USD
CY2013Q2	amrc	Rebates From Utility Company RebatesFromUtilityCompany	0	USD
	amrc	Rebates From Utility Company RebatesFromUtilityCompany	1287000	USD
CY2013Q2	amrc	Renewable Energy Expenses RenewableEnergyExpenses	33116629	USD
CY2012Q2	amrc	Renewable Energy Expenses RenewableEnergyExpenses	35068772	USD
	amrc	Renewable Energy Expenses RenewableEnergyExpenses	66278023	USD
	amrc	Renewable Energy Expenses RenewableEnergyExpenses	62798556	USD
CY2013Q2	amrc	Renewable Energy Revenue RenewableEnergyRevenue	41001556	USD
CY2012Q2	amrc	Renewable Energy Revenue RenewableEnergyRevenue	44280788	USD
	amrc	Renewable Energy Revenue RenewableEnergyRevenue	81316600	USD
	amrc	Renewable Energy Revenue RenewableEnergyRevenue	77471487	USD
	dei	Amendment Flag AmendmentFlag	false
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q2
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2013
	dei	Document Period End Date DocumentPeriodEndDate	2013-06-30
	dei	Document Type DocumentType	10-Q
	dei	Entity Central Index Key EntityCentralIndexKey	0001488139
	dei	Entity Filer Category EntityFilerCategory	Accelerated Filer
	dei	Entity Registrant Name EntityRegistrantName	Ameresco, Inc.

Files In Submission

Name	View Source	Status
0001488139-13-000026-index-headers.html	Edgar Link	pending
0001488139-13-000026-index.html	Edgar Link	pending
0001488139-13-000026.txt	Edgar Link	pending
0001488139-13-000026-xbrl.zip	Edgar Link	pending
amrc-20130630.xml	Edgar Link	completed
amrc-20130630.xsd	Edgar Link	pending
amrc-20130630_cal.xml	Edgar Link	unprocessable
amrc-20130630_def.xml	Edgar Link	unprocessable
amrc-20130630_lab.xml	Edgar Link	unprocessable
amrc-20130630_pre.xml	Edgar Link	unprocessable
amrc630201310-qq213.htm	Edgar Link	pending
ex101q213.htm	Edgar Link	pending
ex102q213.htm	Edgar Link	pending
ex103q213.htm	Edgar Link	pending
ex311q213.htm	Edgar Link	pending
ex312q213.htm	Edgar Link	pending
ex321q213.htm	Edgar Link	pending
ex322q213.htm	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xls	Edgar Link	pending
R1.htm	Edgar Link	pending
R1.xml	Edgar Link	unprocessable
R10.htm	Edgar Link	pending
R10.xml	Edgar Link	unprocessable
R11.htm	Edgar Link	pending
R11.xml	Edgar Link	unprocessable
R12.htm	Edgar Link	pending
R12.xml	Edgar Link	unprocessable
R13.htm	Edgar Link	pending
R13.xml	Edgar Link	unprocessable
R14.htm	Edgar Link	pending
R14.xml	Edgar Link	unprocessable
R15.htm	Edgar Link	pending
R15.xml	Edgar Link	unprocessable
R16.htm	Edgar Link	pending
R16.xml	Edgar Link	unprocessable
R17.htm	Edgar Link	pending
R17.xml	Edgar Link	unprocessable
R18.htm	Edgar Link	pending
R18.xml	Edgar Link	unprocessable
R19.htm	Edgar Link	pending
R19.xml	Edgar Link	unprocessable
R2.htm	Edgar Link	pending
R2.xml	Edgar Link	unprocessable
R20.htm	Edgar Link	pending
R20.xml	Edgar Link	unprocessable
R21.htm	Edgar Link	pending
R21.xml	Edgar Link	unprocessable
R22.htm	Edgar Link	pending
R22.xml	Edgar Link	unprocessable
R23.htm	Edgar Link	pending
R23.xml	Edgar Link	unprocessable
R24.htm	Edgar Link	pending
R24.xml	Edgar Link	unprocessable
R25.htm	Edgar Link	pending
R25.xml	Edgar Link	unprocessable
R26.htm	Edgar Link	pending
R26.xml	Edgar Link	unprocessable
R27.htm	Edgar Link	pending
R27.xml	Edgar Link	unprocessable
R28.htm	Edgar Link	pending
R28.xml	Edgar Link	unprocessable
R29.htm	Edgar Link	pending
R29.xml	Edgar Link	unprocessable
R3.htm	Edgar Link	pending
R3.xml	Edgar Link	unprocessable
R30.htm	Edgar Link	pending
R30.xml	Edgar Link	unprocessable
R31.htm	Edgar Link	pending
R31.xml	Edgar Link	unprocessable
R32.htm	Edgar Link	pending
R32.xml	Edgar Link	unprocessable
R33.htm	Edgar Link	pending
R33.xml	Edgar Link	unprocessable
R34.htm	Edgar Link	pending
R34.xml	Edgar Link	unprocessable
R35.htm	Edgar Link	pending
R35.xml	Edgar Link	unprocessable
R36.htm	Edgar Link	pending
R36.xml	Edgar Link	unprocessable
R37.htm	Edgar Link	pending
R37.xml	Edgar Link	unprocessable
R38.htm	Edgar Link	pending
R38.xml	Edgar Link	unprocessable
R39.htm	Edgar Link	pending
R39.xml	Edgar Link	unprocessable
R4.htm	Edgar Link	pending
R4.xml	Edgar Link	unprocessable
R40.htm	Edgar Link	pending
R40.xml	Edgar Link	unprocessable
R41.htm	Edgar Link	pending
R41.xml	Edgar Link	unprocessable
R42.htm	Edgar Link	pending
R42.xml	Edgar Link	unprocessable
R43.htm	Edgar Link	pending
R43.xml	Edgar Link	unprocessable
R44.htm	Edgar Link	pending
R44.xml	Edgar Link	unprocessable
R45.htm	Edgar Link	pending
R45.xml	Edgar Link	unprocessable
R46.htm	Edgar Link	pending
R46.xml	Edgar Link	unprocessable
R47.htm	Edgar Link	pending
R47.xml	Edgar Link	unprocessable
R48.htm	Edgar Link	pending
R48.xml	Edgar Link	unprocessable
R49.htm	Edgar Link	pending
R49.xml	Edgar Link	unprocessable
R5.htm	Edgar Link	pending
R5.xml	Edgar Link	unprocessable
R50.htm	Edgar Link	pending
R50.xml	Edgar Link	unprocessable
R51.htm	Edgar Link	pending
R51.xml	Edgar Link	unprocessable
R52.htm	Edgar Link	pending
R52.xml	Edgar Link	unprocessable
R53.htm	Edgar Link	pending
R53.xml	Edgar Link	unprocessable
R54.htm	Edgar Link	pending
R54.xml	Edgar Link	unprocessable
R55.htm	Edgar Link	pending
R55.xml	Edgar Link	unprocessable
R56.htm	Edgar Link	pending
R56.xml	Edgar Link	unprocessable
R57.htm	Edgar Link	pending
R57.xml	Edgar Link	unprocessable
R58.htm	Edgar Link	pending
R58.xml	Edgar Link	unprocessable
R59.htm	Edgar Link	pending
R59.xml	Edgar Link	unprocessable
R6.htm	Edgar Link	pending
R6.xml	Edgar Link	unprocessable
R60.htm	Edgar Link	pending
R60.xml	Edgar Link	unprocessable
R61.htm	Edgar Link	pending
R61.xml	Edgar Link	unprocessable
R62.htm	Edgar Link	pending
R62.xml	Edgar Link	unprocessable
R63.htm	Edgar Link	pending
R63.xml	Edgar Link	unprocessable
R64.htm	Edgar Link	pending
R64.xml	Edgar Link	unprocessable
R7.htm	Edgar Link	pending
R7.xml	Edgar Link	unprocessable
R8.htm	Edgar Link	pending
R8.xml	Edgar Link	unprocessable
R9.htm	Edgar Link	pending
R9.xml	Edgar Link	unprocessable
report.css	Edgar Link	pending
Show.js	Edgar Link	pending

Create your account

Find Stocks Worth Researching

Deeply Understand Businesses

Value Businesses Intelligently

$AMRC
Ameresco, Inc. Stock $amrc

2013 Q2 Form 10-Q Financial Statement

#000148813913000026 Filed on August 09, 2013

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$AMRC Ameresco, Inc. Stock $amrc

2013 Q2 Form 10-Q Financial Statement

#000148813913000026 Filed on August 09, 2013

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$AMRC
Ameresco, Inc. Stock $amrc