$ICFI
ICF International, Inc. Stock $icfi

$icfi Overview Financials Valuation SEC Filings Company Website

2017 Q4 Form 10-K Financial Statement

#000156459018003648 Filed on February 28, 2018

Income Statement

Concept	2017 Q4	2017 Q3	2017 Q2
Revenue	$321.2M	$305.3M	$306.4M
YoY Change	10.92%	-0.4%	0.32%
Cost Of Revenue	$207.2M	$190.0M	$190.9M
YoY Change	13.6%	-0.69%	-1.7%
Gross Profit	$113.9M	$115.3M	$115.5M
YoY Change	6.35%	0.09%	3.83%
Gross Profit Margin	35.46%	37.77%	37.7%
Selling, General & Admin	$86.80M	$84.56M	$86.24M
YoY Change	11.71%	0.43%	1.89%
% of Gross Profit	76.21%	73.33%	74.67%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$6.900M	$7.400M	$7.000M
YoY Change	-8.0%	2.78%	-4.11%
% of Gross Profit	6.06%	6.42%	6.06%
Operating Expenses	$93.80M	$91.91M	$93.29M
YoY Change	10.09%	0.52%	1.54%
Operating Profit	$20.18M	$23.40M	$22.21M
YoY Change	-8.12%	-1.6%	14.72%
Interest Expense	-$1.900M	$2.175M	$2.537M
YoY Change	-13.64%	-9.64%	3.13%
% of Operating Profit	-9.41%	9.3%	11.42%
Other Income/Expense, Net	$100.0K	-$311.0K	$226.0K
YoY Change	-50.0%	-142.49%	-496.49%
Pretax Income	$18.40M	$20.91M	$19.90M
YoY Change	-8.0%	-5.39%	18.15%
Income Tax	$8.900M	$7.218M	$7.960M
% Of Pretax Income	48.37%	34.52%	40.01%
Net Earnings	$27.07M	$13.69M	$11.94M
YoY Change	113.6%	1.9%	12.79%
Net Earnings / Revenue	8.43%	4.48%	3.9%
Basic Earnings Per Share	$1.45	$0.73	$0.64
Diluted Earnings Per Share	$1.41	$0.72	$0.63
COMMON SHARES
Basic Shares Outstanding	18.65M	18.67M	18.78M
Diluted Shares Outstanding	19.14M	19.02M	19.09M

Balance Sheet

Concept	2017 Q4	2017 Q3	2017 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments	$11.80M	$6.500M	$9.500M
YoY Change	96.67%	-32.29%	-12.04%
Cash & Equivalents	$11.81M	$6.485M	$9.493M
Short-Term Investments
Other Short-Term Assets	$22.50M	$12.90M	$13.30M
YoY Change	92.31%	-2.27%	-30.37%
Inventory
Prepaid Expenses
Receivables	$168.3M	$288.1M	$288.2M
Other Receivables	$5.600M	$1.600M	$5.300M
Total Short-Term Assets	$331.4M	$309.0M	$316.3M
YoY Change	10.8%	3.34%	1.17%
LONG-TERM ASSETS
Property, Plant & Equipment	$38.05M	$36.03M	$37.88M
YoY Change	-6.01%	-16.21%	-14.04%
Goodwill	$686.1M	$685.9M	$685.1M
YoY Change	0.35%	0.16%	-0.05%
Intangibles	$35.30M	$37.97M	$40.69M
YoY Change	-23.47%	-22.97%	-22.44%
Long-Term Investments
YoY Change
Other Assets	$18.09M	$17.43M	$16.87M
YoY Change	26.47%	19.51%	25.66%
Total Long-Term Assets	$778.8M	$778.6M	$781.8M
YoY Change	-0.97%	-1.82%	-1.88%
TOTAL ASSETS
Total Short-Term Assets	$331.4M	$309.0M	$316.3M
Total Long-Term Assets	$778.8M	$778.6M	$781.8M
Total Assets	$1.110B	$1.088B	$1.098B
YoY Change	2.27%	-0.4%	-1.02%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$75.07M	$62.60M	$60.73M
YoY Change	6.36%	9.01%	5.2%
Accrued Expenses	$17.57M	$99.20M	$85.30M
YoY Change	-66.61%	-9.41%	-17.98%
Deferred Revenue	$38.57M
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$224.4M	$196.3M	$173.2M
YoY Change	16.57%	-0.58%	-10.99%
LONG-TERM LIABILITIES
Long-Term Debt	$206.3M	$230.1M	$278.0M
YoY Change	-20.49%	-18.18%	-12.55%
Other Long-Term Liabilities	$15.14M	$14.38M	$14.31M
YoY Change	16.57%	43.64%	42.31%
Total Long-Term Liabilities	$221.4M	$244.5M	$292.3M
YoY Change	-18.72%	-16.05%	-10.87%
TOTAL LIABILITIES
Total Short-Term Liabilities	$224.4M	$196.3M	$173.2M
Total Long-Term Liabilities	$221.4M	$244.5M	$292.3M
Total Liabilities	$494.2M	$502.9M	$524.9M
YoY Change	-4.88%	-7.16%	-8.4%
SHAREHOLDERS EQUITY
Retained Earnings	$434.8M	$407.7M	$394.0M
YoY Change	16.91%	13.5%	13.95%
Common Stock	$307.8M	$305.4M	$22.00K
YoY Change	5.26%	1388154.55%	0.0%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$121.5M	$121.7M	$114.1M
YoY Change	37.03%	38.28%	33.62%
Treasury Stock Shares
Shareholders Equity	$616.0M	$584.8M	$573.1M
YoY Change
Total Liabilities & Shareholders Equity	$1.110B	$1.088B	$1.098B
YoY Change	2.27%	-0.4%	-1.02%

Cashflow Statement

Concept	2017 Q4	2017 Q3	2017 Q2
OPERATING ACTIVITIES
Net Income	$27.07M	$13.69M	$11.94M
YoY Change	113.6%	1.9%	12.79%
Depreciation, Depletion And Amortization	$6.900M	$7.400M	$7.000M
YoY Change	-8.0%	2.78%	-4.11%
Cash From Operating Activities	$46.90M	$53.10M	$11.10M
YoY Change	115.14%	26.13%	-61.86%
INVESTING ACTIVITIES
Capital Expenditures	-$6.000M	-$2.400M	-$3.500M
YoY Change	93.55%	-14.29%	-5.41%
Acquisitions
YoY Change
Other Investing Activities	$0.00	$0.00	$0.00
YoY Change	-100.0%
Cash From Investing Activities	-$6.000M	-$2.400M	-$3.500M
YoY Change	87.5%	-14.29%	-5.41%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-24.80M	-54.50M	-6.100M
YoY Change	11.21%	37.97%	-74.48%
NET CHANGE
Cash From Operating Activities	46.90M	53.10M	11.10M
Cash From Investing Activities	-6.000M	-2.400M	-3.500M
Cash From Financing Activities	-24.80M	-54.50M	-6.100M
Net Change In Cash	16.10M	-3.800M	1.500M
YoY Change	-535.14%	1800.0%	0.0%
FREE CASH FLOW
Cash From Operating Activities	$46.90M	$53.10M	$11.10M
Capital Expenditures	-$6.000M	-$2.400M	-$3.500M
Free Cash Flow	$52.90M	$55.50M	$14.60M
YoY Change	112.45%	23.61%	-55.49%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value
CY2017	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2017	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2017Q2	dei	Entity Public Float EntityPublicFloat	855000000
CY2017	dei	Document Type DocumentType	10-K
CY2017	dei	Document Period End Date DocumentPeriodEndDate	2017-12-31
CY2017	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2017
CY2017	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2017	dei	Amendment Flag AmendmentFlag	false
CY2016Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	6042000
CY2016Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	281365000
CY2017Q4	us-gaap	Restricted Cash Current RestrictedCashCurrent	11191000
CY2017Q4	us-gaap	Assets Current AssetsCurrent	331438000
CY2017Q4	us-gaap	Goodwill Goodwill	686108000
CY2017Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	35304000
CY2017Q4	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	1266000
CY2017Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	45645000
CY2016Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	39763000
CY2017Q4	us-gaap	Accrued Liabilities And Other Liabilities AccruedLiabilitiesAndOtherLiabilities	65080000
CY2016Q4	us-gaap	Accrued Liabilities And Other Liabilities AccruedLiabilitiesAndOtherLiabilities	52631000
CY2017Q4	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	38571000
CY2016Q4	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	29394000
CY2016Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	106000
CY2017Q4	us-gaap	Liabilities Current LiabilitiesCurrent	224370000
CY2016Q4	us-gaap	Liabilities Current LiabilitiesCurrent	192480000
CY2017Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	206250000
CY2016Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	259389000
CY2017Q4	us-gaap	Deferred Rent Credit Noncurrent DeferredRentCreditNoncurrent	15119000
CY2016Q4	us-gaap	Deferred Rent Credit Noncurrent DeferredRentCreditNoncurrent	15600000
CY2017Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	33351000
CY2016Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	39114000
CY2017Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	15135000
CY2016Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	12984000
CY2017Q4	us-gaap	Liabilities Liabilities	494225000
CY2016Q4	us-gaap	Liabilities Liabilities	519567000
CY2017Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies
CY2016Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies
CY2017Q4	us-gaap	Preferred Stock Value PreferredStockValue
CY2016Q4	us-gaap	Preferred Stock Value PreferredStockValue
CY2017Q4	us-gaap	Common Stock Value CommonStockValue	22000
CY2016Q4	us-gaap	Common Stock Value CommonStockValue	22000
CY2017Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	307821000
CY2016Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	292427000
CY2017Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	434766000
CY2016Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	371890000
CY2017Q4	us-gaap	Treasury Stock Value TreasuryStockValue	121540000
CY2016Q4	us-gaap	Treasury Stock Value TreasuryStockValue	88695000
CY2017Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-5039000
CY2016Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-9640000
CY2017Q4	us-gaap	Stockholders Equity StockholdersEquity	616030000
CY2016Q4	us-gaap	Assets Current AssetsCurrent	299131000
CY2017Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	38052000
CY2016Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	40484000
CY2016Q4	us-gaap	Goodwill Goodwill	683683000
CY2017Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	18087000
CY2017Q4	us-gaap	Assets Assets	1110255000
CY2017Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	75074000
CY2017	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2017	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	11809000
CY2017	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	No
CY2017Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	291515000
CY2016Q4	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	1843000
CY2016Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	14301000
CY2016Q4	us-gaap	Assets Assets	1085571000
CY2016Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	70586000
CY2017Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	11327000
CY2016Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	11724000
CY2017Q4	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	5596000
CY2016Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	46129000
CY2017	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	10888000
CY2017	us-gaap	Operating Income Loss OperatingIncomeLoss	82418000
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CY2017Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1110255000
CY2016Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1085571000
CY2017Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.001
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CY2017Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	5000000
CY2016Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	5000000
CY2017Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0
CY2016Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0
CY2017Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.001
CY2016Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.001
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CY2016Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	70000000
CY2017Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	22019315
CY2016Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	21663432
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CY2016Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	19021262
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CY2016	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	12481000
CY2017	us-gaap	Operating Expenses OperatingExpenses	375019000
CY2016	us-gaap	Operating Expenses OperatingExpenses	357167000
CY2015	us-gaap	Operating Expenses OperatingExpenses	362565000
CY2016	us-gaap	Operating Income Loss OperatingIncomeLoss	82793000
CY2015	us-gaap	Operating Income Loss OperatingIncomeLoss	75231000
CY2017	us-gaap	Interest Expense InterestExpense	8553000
CY2016	us-gaap	Interest Expense InterestExpense	9470000
CY2015	us-gaap	Interest Expense InterestExpense	10072000
CY2017	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	121000
CY2016	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	1184000
CY2015	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-1559000
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	73986000
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	74507000
CY2015	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	63600000
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	11110000
CY2016	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	27923000
CY2015	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	24231000
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CY2016	us-gaap	Net Income Loss NetIncomeLoss	46584000
CY2015	us-gaap	Net Income Loss NetIncomeLoss	39369000
CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.35
CY2016Q4	icfi	Accrued Information Technology And Software Licensing Costs Current AccruedInformationTechnologyAndSoftwareLicensingCostsCurrent	5349000
CY2016Q4	icfi	Accrued Taxes And Insurance Premiums Current AccruedTaxesAndInsurancePremiumsCurrent	1306000
CY2016Q4	us-gaap	Interest Payable Current InterestPayableCurrent	841000
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CY2017	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	67477000
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CY2015	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	33406000
CY2017	us-gaap	Straight Line Rent StraightLineRent	177000
CY2016	us-gaap	Straight Line Rent StraightLineRent	43000
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CY2015	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.00
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CY2016	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	18989000
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CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	19244000
CY2016	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	19416000
CY2015	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	19663000
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CY2016	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-2149000
CY2015	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-5010000
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CY2017	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	1480000
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CY2015	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	268000
CY2017	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	7390000
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CY2015	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-2106000
CY2017	us-gaap	Share Based Compensation ShareBasedCompensation	10291000
CY2016	us-gaap	Share Based Compensation ShareBasedCompensation	9082000
CY2015	us-gaap	Share Based Compensation ShareBasedCompensation	10850000
CY2016	icfi	Proceeds From Hedge Sale ProceedsFromHedgeSale	3600000
CY2017	icfi	Facilities Consolidation Reserve FacilitiesConsolidationReserve	1479000
CY2017	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	673000
CY2016	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	532000
CY2015	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	532000
CY2017	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-275000
CY2016	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	1169000
CY2015	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-1254000
CY2017	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	7234000
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CY2017	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	1844000
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CY2017	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	3631000
CY2016	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	8941000
CY2015	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-2374000
CY2017	us-gaap	Increase Decrease In Employee Related Liabilities IncreaseDecreaseInEmployeeRelatedLiabilities	5597000
CY2016	us-gaap	Increase Decrease In Employee Related Liabilities IncreaseDecreaseInEmployeeRelatedLiabilities	1140000
CY2015	us-gaap	Increase Decrease In Employee Related Liabilities IncreaseDecreaseInEmployeeRelatedLiabilities	-13208000
CY2017	us-gaap	Increase Decrease In Accrued Liabilities And Other Operating Liabilities IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities	13257000
CY2016	us-gaap	Increase Decrease In Accrued Liabilities And Other Operating Liabilities IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities	10252000
CY2015	us-gaap	Increase Decrease In Accrued Liabilities And Other Operating Liabilities IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities	-4522000
CY2017	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	8341000
CY2016	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	-707000
CY2015	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	2367000
CY2017	us-gaap	Increase Decrease In Income Taxes Payable Net Of Income Taxes Receivable IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable	-5697000
CY2016	us-gaap	Increase Decrease In Income Taxes Payable Net Of Income Taxes Receivable IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable	-2447000
CY2015	us-gaap	Increase Decrease In Income Taxes Payable Net Of Income Taxes Receivable IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable	8356000
CY2017	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	3054000
CY2016	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-639000
CY2015	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-320000
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	117191000
CY2016	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	80057000
CY2015	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	76203000
CY2017	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	14513000
CY2016	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	13791000
CY2015	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	12682000
CY2017	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	91000
CY2016	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	100000
CY2015	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	1818000
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-14604000
CY2016	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-13891000
CY2015	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-14500000
CY2017	us-gaap	Proceeds From Bank Debt ProceedsFromBankDebt	590225000
CY2016	us-gaap	Proceeds From Bank Debt ProceedsFromBankDebt	478584000
CY2015	us-gaap	Proceeds From Bank Debt ProceedsFromBankDebt	381745000
CY2017	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	643363000
CY2016	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	530728000
CY2015	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	420265000
CY2017	icfi	Repayment Of Capital Expenditure Obligations RepaymentOfCapitalExpenditureObligations	4808000
CY2016	icfi	Repayment Of Capital Expenditure Obligations RepaymentOfCapitalExpenditureObligations	4041000
CY2015	icfi	Repayment Of Capital Expenditure Obligations RepaymentOfCapitalExpenditureObligations	3289000
CY2017	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	1612000
CY2015	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	17000
CY2017	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	4722000
CY2016	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	3034000
CY2015	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	932000
CY2015	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	1307000
CY2017	us-gaap	Proceeds From Repurchase Of Equity ProceedsFromRepurchaseOfEquity	-32464000
CY2016	us-gaap	Proceeds From Repurchase Of Equity ProceedsFromRepurchaseOfEquity	-13823000
CY2015	us-gaap	Proceeds From Repurchase Of Equity ProceedsFromRepurchaseOfEquity	-24861000
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	-87300000
CY2016	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	-66974000
CY2015	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	-64448000
CY2017	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1094000
CY2016	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-416000
CY2015	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-1746000
CY2017	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	16381000
CY2016	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-1224000
CY2015	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-4491000
CY2016Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	7885000
CY2015Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	9109000
CY2014Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	13600000
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	24266000
CY2017	us-gaap	Interest Paid InterestPaid	7922000
CY2016	us-gaap	Interest Paid InterestPaid	8937000
CY2015	us-gaap	Interest Paid InterestPaid	9845000
CY2017	us-gaap	Income Taxes Paid IncomeTaxesPaid	21659000
CY2016	us-gaap	Income Taxes Paid IncomeTaxesPaid	21094000
CY2015	us-gaap	Income Taxes Paid IncomeTaxesPaid	16315000
CY2015	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	12870000
CY2017	us-gaap	Use Of Estimates UseOfEstimates	<div> <p style="margin-top:6pt;margin-bottom:0pt;text-indent:0%;font-weight:bold;font-style:italic;color:#000000;font-family:Times New Roman;font-size:10pt;text-transform:none;font-variant: normal;">Use of Estimates</p> <p style="margin-top:6pt;margin-bottom:0pt;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;text-indent:4.54%;">The preparation of financial statements in conformity with U.S. generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities, and contingent liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the reporting periods. Actual results could differ from those estimates.</p></div>
CY2017	us-gaap	Derivatives Methods Of Accounting Hedging Derivatives DerivativesMethodsOfAccountingHedgingDerivatives	<div> <p style="margin-top:12pt;margin-bottom:0pt;text-indent:0%;font-weight:bold;font-style:italic;color:#000000;font-family:Times New Roman;font-size:10pt;text-transform:none;font-variant: normal;">Derivative Instruments</p> <p style="margin-top:6pt;margin-bottom:0pt;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;text-indent:4.54%;">Derivative instruments designated as cash flow hedges are recorded on the consolidated balance sheet at fair value as of the reporting date, and the effective portion of the hedge is recorded in other comprehensive income (loss) on the consolidated statement of comprehensive income and reclassified to earnings in the period that the hedged instruments affect earnings.  Management reviews the effectiveness of the hedges on a quarterly basis.</p></div>
CY2017	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<div> <p style="margin-top:12pt;margin-bottom:0pt;text-indent:0%;font-weight:bold;font-style:italic;color:#000000;font-family:Times New Roman;font-size:10pt;text-transform:none;font-variant: normal;">Risks and Uncertainties</p> <p style="margin-top:6pt;margin-bottom:0pt;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;text-indent:4.54%;">Financial instruments that potentially subject the Company to concentrations of credit risk consist principally of cash and cash equivalents and contract receivables. The majority of the Company’s cash transactions are processed through one U.S. commercial bank. Cash held domestically in excess of daily requirements is used to reduce any amounts outstanding under the Company’s Credit Facility. As of December 31, 2017 and 2016, the Company held approximately $10.4 million and $5.4 million, respectively, of cash in foreign bank accounts. To date, the Company has not incurred losses related to cash and cash equivalents.</p> <p style="margin-top:6pt;margin-bottom:0pt;text-indent:4.54%;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">The Company’s contract receivables consist principally of receivables from agencies and departments of, as well as from prime contractors to, the U.S. federal, state and local, and international governments, as well as from commercial organizations. The Company believes that <font style="color:#000000;">this </font>credit risk with<font style="color:#000000;"> respect to federal and other governments, including when the Company is a subcontractor to a prime contractor,</font> is limited due to the credit worthiness of the respective governmental entity. Receivables from commercial clients generally pose a greater credit risk than those from government agencies and departments, and, as a result, are subject to ongoing monitoring. The Company extends credit in the normal course of operations and does not require collateral from its clients.</p> <p style="margin-top:6pt;margin-bottom:0pt;text-indent:4.54%;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">The Company has historically been, and continues to be, heavily dependent on contracts with the federal government and is subject to audit, in particular, by agencies of the federal government. Such audits determine, among other things, whether an adjustment of invoices rendered to the government is appropriate under the underlying terms of the contracts. Management does not expect any significant adjustments as a result of government audits that will adversely affect the Company’s financial position.</p></div>
CY2017	us-gaap	Number Of Reporting Units NumberOfReportingUnits	1
CY2017Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	0
CY2017	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Award Vesting Period1 ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1	P3Y
CY2017	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	4177000
CY2016	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	-4321000
CY2015	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	-5676000
CY2016	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Reclassification Adjustment From Aoci Realized Upon Sale Or Liquidation Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationNetOfTax	3000
CY2015	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Reclassification Adjustment From Aoci Realized Upon Sale Or Liquidation Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationNetOfTax	-666000
CY2017	us-gaap	Other Comprehensive Income Derivatives Qualifying As Hedges Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPortionAttributableToParent	441000
CY2017	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-17000
CY2016	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	2175000
CY2017	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	1000000
CY2016	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	2200000
CY2015	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	1000000
CY2017	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	1
CY2017Q4	us-gaap	Foreign Financial Institutions Actual Deposits ForeignFinancialInstitutionsActualDeposits	10400000
CY2016Q4	us-gaap	Foreign Financial Institutions Actual Deposits ForeignFinancialInstitutionsActualDeposits	5400000
CY2017	icfi	Majority Of Unbilled Receivables Will Be Substantially Billed And Collected1 MajorityOfUnbilledReceivablesWillBeSubstantiallyBilledAndCollected1	P1Y
CY2017Q4	us-gaap	Billed Contract Receivables BilledContractReceivables	169027000
CY2016Q4	us-gaap	Billed Contract Receivables BilledContractReceivables	168012000
CY2017Q4	us-gaap	Unbilled Contracts Receivable UnbilledContractsReceivable	117037000
CY2016Q4	us-gaap	Unbilled Contracts Receivable UnbilledContractsReceivable	108432000
CY2017Q4	us-gaap	Contract Receivable Retainage ContractReceivableRetainage	6160000
CY2016Q4	us-gaap	Contract Receivable Retainage ContractReceivableRetainage	5088000
CY2017Q4	icfi	Other Contract Receivables OtherContractReceivables	3144000
CY2016Q4	icfi	Other Contract Receivables OtherContractReceivables	2424000
CY2017Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	3853000
CY2016Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	2591000
CY2017Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	116610000
CY2016Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	114560000
CY2017Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	78558000
CY2017Q2	icfi	Line Of Credit Facility Leverage Ratio Covenant LineOfCreditFacilityLeverageRatioCovenant	3.75
CY2017	us-gaap	Line Of Credit Facility Interest Rate During Period LineOfCreditFacilityInterestRateDuringPeriod	0.0015
CY2016	us-gaap	Line Of Credit Facility Interest Rate During Period LineOfCreditFacilityInterestRateDuringPeriod	0.0025
CY2017Q4	us-gaap	Line Of Credit Facility Remaining Borrowing Capacity LineOfCreditFacilityRemainingBorrowingCapacity	390000000
CY2016Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	74076000
CY2015Q4	us-gaap	Goodwill Goodwill	687404000
CY2017	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	2425000
CY2016	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	-4833000
CY2017Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	86341000
CY2017Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	51132000
CY2017Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	35209000
CY2017Q4	us-gaap	Indefinite Lived Intangible Assets Excluding Goodwill IndefiniteLivedIntangibleAssetsExcludingGoodwill	95000
CY2017Q4	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	86436000
CY2016Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	117269000
CY2016Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	71235000
CY2016Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	46034000
CY2016Q4	us-gaap	Indefinite Lived Intangible Assets Excluding Goodwill IndefiniteLivedIntangibleAssetsExcludingGoodwill	95000
CY2016Q4	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	117364000
CY2017Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	8441000
CY2017Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	6132000
CY2017Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	4532000
CY2017Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	4082000
CY2017Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	4125000
CY2017Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	7897000
CY2017Q4	us-gaap	Accrued Vacation Current AccruedVacationCurrent	11904000
CY2016Q4	us-gaap	Accrued Vacation Current AccruedVacationCurrent	11342000
CY2017Q4	us-gaap	Accrued Salaries Current AccruedSalariesCurrent	9343000
CY2016Q4	us-gaap	Accrued Salaries Current AccruedSalariesCurrent	9443000
CY2017Q4	us-gaap	Accrued Bonuses Current AccruedBonusesCurrent	16909000
CY2016Q4	us-gaap	Accrued Bonuses Current AccruedBonusesCurrent	13025000
CY2017Q4	us-gaap	Accrued Payroll Taxes Current AccruedPayrollTaxesCurrent	2557000
CY2016Q4	us-gaap	Accrued Payroll Taxes Current AccruedPayrollTaxesCurrent	1948000
CY2017Q4	icfi	Accrued Medical Current AccruedMedicalCurrent	3720000
CY2016Q4	icfi	Accrued Medical Current AccruedMedicalCurrent	3026000
CY2017Q4	us-gaap	Other Employee Related Liabilities Current OtherEmployeeRelatedLiabilitiesCurrent	1212000
CY2016Q4	us-gaap	Other Employee Related Liabilities Current OtherEmployeeRelatedLiabilitiesCurrent	979000
CY2017Q4	icfi	Accrued Subcontractor And Other Direct Costs AccruedSubcontractorAndOtherDirectCosts	47508000
CY2016Q4	icfi	Accrued Subcontractor And Other Direct Costs AccruedSubcontractorAndOtherDirectCosts	30153000
CY2017Q4	us-gaap	Deposit Liability Current DepositLiabilityCurrent	6641000
CY2016Q4	us-gaap	Deposit Liability Current DepositLiabilityCurrent	12389000
CY2017Q4	icfi	Accrued Information Technology And Software Licensing Costs Current AccruedInformationTechnologyAndSoftwareLicensingCostsCurrent	2261000
CY2017Q4	icfi	Accrued Taxes And Insurance Premiums Current AccruedTaxesAndInsurancePremiumsCurrent	1963000
CY2017Q4	icfi	Accrued Lease Exit And Facilities Costs Current AccruedLeaseExitAndFacilitiesCostsCurrent	1591000
CY2016Q4	icfi	Accrued Lease Exit And Facilities Costs Current AccruedLeaseExitAndFacilitiesCostsCurrent	77000
CY2017Q4	us-gaap	Interest Payable Current InterestPayableCurrent	705000
CY2017Q4	us-gaap	Accrued Professional Fees Current AccruedProfessionalFeesCurrent	1131000
CY2016Q4	us-gaap	Accrued Professional Fees Current AccruedProfessionalFeesCurrent	795000
CY2017Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	3280000
CY2016Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	1721000
CY2017Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	65080000
CY2016Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	52631000
CY2017Q2	icfi	Credit Facility Syndication Number Of Commercial Banks CreditFacilitySyndicationNumberOfCommercialBanks	11
CY2017	us-gaap	Line Of Credit Facility Expiration Date1 LineOfCreditFacilityExpirationDate1	2022-05-17
CY2017Q2	icfi	Line Of Credit Facility Maximum Borrowing Capacity Without Borrowing Base Requirement LineOfCreditFacilityMaximumBorrowingCapacityWithoutBorrowingBaseRequirement	600000000
CY2017Q2	icfi	Line Of Credit Facility Accordion Feature Additional Revolving Credit Commitments Under Existing Loan Facility LineOfCreditFacilityAccordionFeatureAdditionalRevolvingCreditCommitmentsUnderExistingLoanFacility	300000000
CY2017Q2	icfi	New Syndicated Borrowings Used To Pay Off Or Pay Down Borrowings From Syndicate Members NewSyndicatedBorrowingsUsedToPayOffOrPayDownBorrowingsFromSyndicateMembers	106000000
CY2017Q2	us-gaap	Line Of Credit Facility Maximum Borrowing Capacity LineOfCreditFacilityMaximumBorrowingCapacity	60000000
CY2017Q2	icfi	Line Of Credit Facility Interest Coverage Ratio Covenant LineOfCreditFacilityInterestCoverageRatioCovenant	3.00
CY2016	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-596000
CY2015	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	216000
CY2017	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-6604000
CY2016	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	9498000
CY2015	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	5290000
CY2017Q4	us-gaap	Line Of Credit Facility Current Borrowing Capacity LineOfCreditFacilityCurrentBorrowingCapacity	245100000
CY2017Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	6900000
CY2016Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	5800000
CY2017Q4	us-gaap	Accumulated Amortization Deferred Finance Costs AccumulatedAmortizationDeferredFinanceCosts	4700000
CY2016Q4	us-gaap	Accumulated Amortization Deferred Finance Costs AccumulatedAmortizationDeferredFinanceCosts	4500000
CY2017Q4	icfi	Number Of Letters Of Credit Outstanding NumberOfLettersOfCreditOutstanding	12
CY2016Q4	icfi	Number Of Letters Of Credit Outstanding NumberOfLettersOfCreditOutstanding	9
CY2017Q4	us-gaap	Letters Of Credit Outstanding Amount LettersOfCreditOutstandingAmount	3700000
CY2016Q4	us-gaap	Letters Of Credit Outstanding Amount LettersOfCreditOutstandingAmount	3400000
CY2017	us-gaap	Derivative Instruments Gain Loss Reclassification From Accumulated Oci To Income Estimated Net Amount To Be Transferred DerivativeInstrumentsGainLossReclassificationFromAccumulatedOCIToIncomeEstimatedNetAmountToBeTransferred	700000
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	69347000
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	69159000
CY2015	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	54150000
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	4639000
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	5348000
CY2015	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	9450000
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	73986000
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	74507000
CY2015	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	63600000
CY2017	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	12995000
CY2016	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	12979000
CY2015	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	14797000
CY2017	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	3243000
CY2016	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	3514000
CY2015	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	2669000
CY2017	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	1476000
CY2016	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	1932000
CY2015	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	1475000
CY2017	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	17714000
CY2016	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	18425000
CY2015	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	18941000
CY2017	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-9425000
CY2016	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	8872000
CY2015	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	4562000
CY2017	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	2749000
CY2016	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	1222000
CY2015	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	512000
CY2017	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	72000
CY2017Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Allowance For Doubtful Accounts DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts	1003000
CY2016Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Allowance For Doubtful Accounts DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts	1008000
CY2017Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Compensated Absences DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsCompensatedAbsences	1624000
CY2016Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Compensated Absences DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsCompensatedAbsences	2592000
CY2016Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Bonuses DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBonuses	55000
CY2017Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Foreign DeferredTaxAssetsOperatingLossCarryforwardsForeign	1301000
CY2016Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Foreign DeferredTaxAssetsOperatingLossCarryforwardsForeign	1371000
CY2017Q4	icfi	Deferred Tax Assets Operating Loss Carryforwards Domestic And State And Local DeferredTaxAssetsOperatingLossCarryforwardsDomesticAndStateAndLocal	507000
CY2016Q4	icfi	Deferred Tax Assets Operating Loss Carryforwards Domestic And State And Local DeferredTaxAssetsOperatingLossCarryforwardsDomesticAndStateAndLocal	3010000
CY2017Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	2726000
CY2016Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	4292000
CY2017Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Deferred Rent DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsDeferredRent	3355000
CY2016Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Deferred Rent DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsDeferredRent	5423000
CY2017Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	33351000
CY2016Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	39114000
CY2017	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35
CY2017	icfi	Tax Cuts And Jobs Act Of2017 Incomplete Accounting Change In Tax Rate Deferred Tax Assets And Liabilities Provisional Income Tax Expense Benefit TaxCutsAndJobsActOf2017IncompleteAccountingChangeInTaxRateDeferredTaxAssetsAndLiabilitiesProvisionalIncomeTaxExpenseBenefit	17600000
CY2017	icfi	Tax Cuts And Jobs Act Of2017 Incomplete Accounting Transition Tax Net Of Foreign Tax Credits Provisional Income Tax Expense Benefit TaxCutsAndJobsActOf2017IncompleteAccountingTransitionTaxNetOfForeignTaxCreditsProvisionalIncomeTaxExpenseBenefit	1400000
CY2017Q4	icfi	Tax Cuts And Jobs Act Of2017 Incomplete Accounting Undistributed Accumulated Earnings Of Foreign Subsidiary Provisional Income Tax Expense Benefit TaxCutsAndJobsActOf2017IncompleteAccountingUndistributedAccumulatedEarningsOfForeignSubsidiaryProvisionalIncomeTaxExpenseBenefit	0
CY2017	icfi	Operating Loss Carryforwards Expiration Term OperatingLossCarryforwardsExpirationTerm	P20Y
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	820000
CY2016Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	1185000
CY2017Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	700000
CY2016Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	1000000
CY2017Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	3238000
CY2016Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	3662000
CY2017Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Foreign DeferredTaxAssetsTaxCreditCarryforwardsForeign	505000
CY2016Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Foreign DeferredTaxAssetsTaxCreditCarryforwardsForeign	2631000
CY2017Q4	us-gaap	Deferred Tax Assets Unrealized Currency Losses DeferredTaxAssetsUnrealizedCurrencyLosses	2051000
CY2016Q4	us-gaap	Deferred Tax Assets Unrealized Currency Losses DeferredTaxAssetsUnrealizedCurrencyLosses	5349000
CY2017Q4	icfi	Deferred Tax Assets Accrued Liabilities And Other Noncurrent DeferredTaxAssetsAccruedLiabilitiesAndOtherNoncurrent	3272000
CY2016Q4	icfi	Deferred Tax Assets Accrued Liabilities And Other Noncurrent DeferredTaxAssetsAccruedLiabilitiesAndOtherNoncurrent	3378000
CY2017Q4	us-gaap	Deferred Tax Assets Gross Noncurrent DeferredTaxAssetsGrossNoncurrent	21367000
CY2016Q4	us-gaap	Deferred Tax Assets Gross Noncurrent DeferredTaxAssetsGrossNoncurrent	34780000
CY2017Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	1636000
CY2016Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	1131000
CY2017Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	19731000
CY2016Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	33649000
CY2017Q4	icfi	Deferred Tax Liabilities Retention Current DeferredTaxLiabilitiesRetentionCurrent	1375000
CY2016Q4	icfi	Deferred Tax Liabilities Retention Current DeferredTaxLiabilitiesRetentionCurrent	1684000
CY2017Q4	us-gaap	Deferred Tax Liabilities Prepaid Expenses DeferredTaxLiabilitiesPrepaidExpenses	1045000
CY2016Q4	us-gaap	Deferred Tax Liabilities Prepaid Expenses DeferredTaxLiabilitiesPrepaidExpenses	1654000
CY2017Q4	icfi	Deferred Tax Liabilities Payroll Taxes DeferredTaxLiabilitiesPayrollTaxes	489000
CY2016Q4	icfi	Deferred Tax Liabilities Payroll Taxes DeferredTaxLiabilitiesPayrollTaxes	617000
CY2017Q4	icfi	Deferred Tax Liabilities Unbilled Revenue DeferredTaxLiabilitiesUnbilledRevenue	5407000
CY2016Q4	icfi	Deferred Tax Liabilities Unbilled Revenue DeferredTaxLiabilitiesUnbilledRevenue	8728000
CY2017Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	4773000
CY2016Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	6664000
CY2017Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	39993000
CY2016Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	51842000
CY2016Q4	icfi	Deferred Tax Liabilities Other Current DeferredTaxLiabilitiesOtherCurrent	1574000
CY2017Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	53082000
CY2016Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	72763000
CY2014Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	702000
CY2015	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	174000
CY2015	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	12000
CY2015	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	140000
CY2015Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	400000
CY2016	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	925000
CY2016	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	140000
CY2017	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	365000
CY2017Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	200000
CY2016Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	200000
CY2017Q4	us-gaap	Significant Change In Unrecognized Tax Benefits Is Reasonably Possible Amount Of Unrecorded Benefit SignificantChangeInUnrecognizedTaxBenefitsIsReasonablyPossibleAmountOfUnrecordedBenefit	700000
CY2016	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350
CY2015	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350
CY2017	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.044
CY2016	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.039
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Other EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOther	0.008
CY2015	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Other EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOther	0.019
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Prior Year Income Taxes EffectiveIncomeTaxRateReconciliationPriorYearIncomeTaxes	-0.003
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Prior Year Income Taxes EffectiveIncomeTaxRateReconciliationPriorYearIncomeTaxes	-0.010
CY2015	us-gaap	Effective Income Tax Rate Reconciliation Prior Year Income Taxes EffectiveIncomeTaxRateReconciliationPriorYearIncomeTaxes	-0.019
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Tax Contingencies EffectiveIncomeTaxRateReconciliationTaxContingencies	0.001
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Tax Contingencies EffectiveIncomeTaxRateReconciliationTaxContingencies	0.010
CY2015	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.039
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.003
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.001
CY2015	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.003
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	-0.226
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Other EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOther	0.007
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	0.007
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.003
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	-0.021
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	-0.010
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	0.006
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	0.008
CY2015	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	0.005
CY2017	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.150
CY2016	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.375
CY2015	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.381
CY2017Q4	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	-7638000
CY2016Q4	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	-11815000
CY2017Q4	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	2158000
CY2016Q4	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	2175000
CY2017Q4	icfi	Accumulated Other Comprehensive Income Loss Cumulative Changes In Fair Value On Derivative Designated From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInFairValueOnDerivativeDesignatedFromCashFlowHedgesEffectNetOfTax	441000
CY2015Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	7747000
CY2014Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	12122000
CY2015Q4	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	1362000
CY2014Q4	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	1478000
CY2017	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	17544000
CY2016	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	15943000
CY2015	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	14741000
CY2017Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	29298000
CY2017	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P5Y
CY2017	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested In Period Fair Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1	1900000
CY2016	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested In Period Fair Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1	1300000
CY2015	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested In Period Fair Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1	2000000
CY2017	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested And Expected To Vest Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageRemainingContractualTerm1	P5Y
CY2017	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P5Y
CY2017	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Lower Range Limit ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit	21.77
CY2017	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Upper Range Limit ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit	41.00
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	411498
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	30.71
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	411498
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	30.71
CY2017	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	142
CY2016	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	163564
CY2015	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	167849
CY2017	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	478000
CY2016	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	427000
CY2015	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	328000
CY2017Q4	us-gaap	Stock Repurchase Program Authorized Amount1 StockRepurchaseProgramAuthorizedAmount1	75000000
CY2017Q4	icfi	Line Of Credit Facility Conditions For The Elimination Of Limits On Shares Repurchases Leverage Ratio LineOfCreditFacilityConditionsForTheEliminationOfLimitsOnSharesRepurchasesLeverageRatio	3.25
CY2017Q4	us-gaap	Stock Repurchase Program Authorized Amount1 StockRepurchaseProgramAuthorizedAmount1	100000000
CY2017	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	684335
CY2017	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	30700000
CY2017Q4	us-gaap	Stock Repurchase Program Remaining Authorized Repurchase Amount1 StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1	100000000
CY2017Q4	icfi	Community Development Related To Claim CommunityDevelopmentRelatedToClaim	220200000
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	36238000
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	34223000
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	31459000
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	31091000
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	29761000
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	30998000
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	193770000
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due Future Minimum Sublease Rentals OperatingLeasesFutureMinimumPaymentsDueFutureMinimumSubleaseRentals	1400000
CY2017	us-gaap	Operating Leases Rent Expense Minimum Rentals OperatingLeasesRentExpenseMinimumRentals	36269000
CY2016	us-gaap	Operating Leases Rent Expense Minimum Rentals OperatingLeasesRentExpenseMinimumRentals	39537000
CY2015	us-gaap	Operating Leases Rent Expense Minimum Rentals OperatingLeasesRentExpenseMinimumRentals	40009000
CY2017	us-gaap	Operating Leases Rent Expense Sublease Rentals1 OperatingLeasesRentExpenseSubleaseRentals1	142000
CY2016	us-gaap	Operating Leases Rent Expense Sublease Rentals1 OperatingLeasesRentExpenseSubleaseRentals1	147000
CY2015	us-gaap	Operating Leases Rent Expense Sublease Rentals1 OperatingLeasesRentExpenseSubleaseRentals1	32000
CY2017	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	36127000
CY2016	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	39390000
CY2015	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	39977000
CY2017	icfi	Maximum Defer Of Compensation Subject To Statutory Limitations Percentage MaximumDeferOfCompensationSubjectToStatutoryLimitationsPercentage	0.70
CY2017	icfi	Percentage Of Employer Matching Contributions Condition One PercentageOfEmployerMatchingContributionsConditionOne	1.00
CY2017	icfi	Percentage Of Employee Entitled To Employer Matching Contribution Condition One PercentageOfEmployeeEntitledToEmployerMatchingContributionConditionOne	0.03
CY2017	icfi	Percentage Of Employer Matching Contributions Condition Two PercentageOfEmployerMatchingContributionsConditionTwo	0.50
CY2017	icfi	Percentage Of Employee Entitled To Employer Matching Contribution Condition Two PercentageOfEmployeeEntitledToEmployerMatchingContributionConditionTwo	0.02
CY2017	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	15100000
CY2016	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	14900000
CY2015	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	13100000
CY2017	us-gaap	Deferred Compensation Arrangement With Individual Cash Awards Granted Percentage DeferredCompensationArrangementWithIndividualCashAwardsGrantedPercentage	0.80
CY2017	icfi	Deferred Compensation On Performance Bonuses That Eligible Employee Percentage DeferredCompensationOnPerformanceBonusesThatEligibleEmployeePercentage	1.00
CY2017	us-gaap	Defined Contribution Plan Employers Matching Contribution Annual Vesting Percentage DefinedContributionPlanEmployersMatchingContributionAnnualVestingPercentage	1.00
CY2017Q4	icfi	Employee Stock Purchase Plan Shares Authorized EmployeeStockPurchasePlanSharesAuthorized	1000000
CY2017	icfi	Employee Stock Purchase Plan Annual Maximum Payroll Deduction EmployeeStockPurchasePlanAnnualMaximumPayrollDeduction	25000
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Discount From Market Price Purchase Date ShareBasedCompensationArrangementByShareBasedPaymentAwardDiscountFromMarketPricePurchaseDate	0.05
CY2017	us-gaap	Stock Issued During Period Shares Employee Stock Purchase Plans StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans	27285
CY2017	icfi	Stock Issued During Period Value Employee Stock Purchase Plans Per Share StockIssuedDuringPeriodValueEmployeeStockPurchasePlansPerShare	47.34
CY2017Q4	icfi	Employee Stock Purchase Plan Number Of Shares Available For Grant EmployeeStockPurchasePlanNumberOfSharesAvailableForGrant	724826
CY2016Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	2591000
CY2015Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	2138000
CY2014Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	1887000
CY2017	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	219000
CY2016	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	635000
CY2015	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	8000
CY2017	icfi	Allowance For Doubtful Accounts Foreign Currency Translation AllowanceForDoubtfulAccountsForeignCurrencyTranslation	1000
CY2016	icfi	Allowance For Doubtful Accounts Foreign Currency Translation AllowanceForDoubtfulAccountsForeignCurrencyTranslation	-1000
CY2015	icfi	Allowance For Doubtful Accounts Foreign Currency Translation AllowanceForDoubtfulAccountsForeignCurrencyTranslation	-9000
CY2017Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	3853000
CY2015Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	933000
CY2014Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	542000
CY2017	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	505000
CY2016	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	198000
CY2015	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	391000
CY2017Q1	us-gaap	Revenues Revenues	296295000
CY2017Q2	us-gaap	Revenues Revenues	306392000
CY2017Q3	us-gaap	Revenues Revenues	305301000
CY2017Q4	us-gaap	Revenues Revenues	321174000
CY2016Q1	us-gaap	Revenues Revenues	283599000
CY2016Q2	us-gaap	Revenues Revenues	305419000
CY2016Q3	us-gaap	Revenues Revenues	306520000
CY2016Q4	us-gaap	Revenues Revenues	289559000
CY2017Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	16633000
CY2017Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	22208000
CY2017Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	23396000
CY2017Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	20181000
CY2016Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	17694000
CY2016Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	19358000
CY2016Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	23776000
CY2016Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	21965000
CY2017Q1	us-gaap	Net Income Loss NetIncomeLoss	10177000
CY2017Q2	us-gaap	Net Income Loss NetIncomeLoss	11937000
CY2017Q3	us-gaap	Net Income Loss NetIncomeLoss	13692000
CY2017Q4	us-gaap	Net Income Loss NetIncomeLoss	27070000
CY2016Q1	us-gaap	Net Income Loss NetIncomeLoss	9891000
CY2016Q2	us-gaap	Net Income Loss NetIncomeLoss	10583000
CY2016Q3	us-gaap	Net Income Loss NetIncomeLoss	13437000
CY2016Q4	us-gaap	Net Income Loss NetIncomeLoss	12673000
CY2017Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.54
CY2017Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.64
CY2017Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.73
CY2017Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.45
CY2016Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.52
CY2016Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.56
CY2016Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.71
CY2016Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.67
CY2017Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.52
CY2017Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.63
CY2017Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.72
CY2017Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.41
CY2016Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.51
CY2016Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.55
CY2016Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.70
CY2016Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.65
CY2017Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	18972
CY2017Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	18775
CY2017Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	18666
CY2017Q4	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	18646
CY2016Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	18994
CY2016Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	19008
CY2016Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	18965
CY2016Q4	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	18988
CY2017Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	19423
CY2017Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	19086
CY2017Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	19024
CY2017Q4	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	19136
CY2016Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	19273
CY2016Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	19293
CY2016Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	19329
CY2016Q4	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	19512

Files In Submission

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0001564590-18-003648-index-headers.html	Edgar Link	pending
0001564590-18-003648-index.html	Edgar Link	pending
0001564590-18-003648.txt	Edgar Link	pending
0001564590-18-003648-xbrl.zip	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
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icfi-10k_20171231.htm	Edgar Link	pending
icfi-20171231.xml	Edgar Link	completed
icfi-20171231.xsd	Edgar Link	pending
icfi-20171231_cal.xml	Edgar Link	unprocessable
icfi-20171231_def.xml	Edgar Link	unprocessable
icfi-20171231_lab.xml	Edgar Link	unprocessable
icfi-20171231_pre.xml	Edgar Link	unprocessable
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$ICFI
ICF International, Inc. Stock $icfi

2017 Q4 Form 10-K Financial Statement

#000156459018003648 Filed on February 28, 2018

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$ICFI ICF International, Inc. Stock $icfi

2017 Q4 Form 10-K Financial Statement

#000156459018003648 Filed on February 28, 2018

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$ICFI
ICF International, Inc. Stock $icfi