$BAH
Booz Allen Hamilton Holding Corp Stock $bah

$bah Overview Financials Valuation SEC Filings Company Website

2021 Q2 Form 10-K Financial Statement

#000144364621000079 Filed on May 21, 2021

Income Statement

Concept	2021 Q2	2021 Q1	2020 Q1
Revenue	$1.989B	$1.979B	$1.970B
YoY Change	1.67%	0.49%	10.65%
Cost Of Revenue	$962.7M	$899.3M	$881.1M
YoY Change	1.46%	2.07%	8.06%
Gross Profit	$1.026B	$1.080B	$1.089B
YoY Change	1.87%	-0.79%	12.84%
Gross Profit Margin	51.6%	54.57%	55.27%
Selling, General & Admin	$235.0M	$291.5M	$311.8M
YoY Change	-4.43%	-6.51%	14.42%
% of Gross Profit	22.9%	26.99%	28.64%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$27.75M	$21.40M	$20.80M
YoY Change	33.83%	2.88%	14.29%
% of Gross Profit	2.7%	1.98%	1.91%
Operating Expenses	$818.3M	$909.0M	$939.5M
YoY Change	0.32%	-3.25%	13.25%
Operating Profit	$141.3M	$171.0M	$149.1M
YoY Change	-26.39%	14.71%	10.35%
Interest Expense	$21.27M	-$20.40M	-$21.70M
YoY Change	5.11%	-5.99%	-2.25%
% of Operating Profit	15.06%	-11.93%	-14.56%
Other Income/Expense, Net	-$533.0K	-$400.0K	$1.300M
YoY Change	-36.24%	-130.77%	-73.47%
Pretax Income	$119.5M	$150.2M	$128.7M
YoY Change	-30.07%	16.73%	9.18%
Income Tax	$27.35M	-$48.90M	-$10.20M
% Of Pretax Income	22.9%	-32.55%	-7.93%
Net Earnings	$92.10M	$199.2M	$138.9M
YoY Change	-28.78%	43.43%	55.03%
Net Earnings / Revenue	4.63%	10.06%	7.05%
Basic Earnings Per Share	$0.68	$1.45	$0.99
Diluted Earnings Per Share	$0.67	$1.43	$0.98
COMMON SHARES
Basic Shares Outstanding	135.4M shares	137.7M shares	140.2M shares
Diluted Shares Outstanding

Balance Sheet

Concept	2021 Q2	2021 Q1	2020 Q1
SHORT-TERM ASSETS
Cash & Short-Term Investments	$621.9M	$991.0M	$741.9M
YoY Change	0.2%	33.58%	161.23%
Cash & Equivalents	$621.9M	$991.0M	$741.9M
Short-Term Investments
Other Short-Term Assets	$182.2M	$233.3M	$126.8M
YoY Change	79.67%	83.99%	49.18%
Inventory
Prepaid Expenses
Receivables	$1.673B	$1.412B	$1.459B
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$2.477B	$2.636B	$2.328B
YoY Change	10.4%	13.23%	37.01%
LONG-TERM ASSETS
Property, Plant & Equipment	$195.9M	$204.6M	$208.1M
YoY Change	-4.47%	-1.65%	20.66%
Goodwill	$1.925B	$1.581B	$1.581B
YoY Change	21.76%	0.0%	0.0%
Intangibles	$609.8M	$307.1M	$301.0M
YoY Change	100.93%	2.04%	4.85%
Long-Term Investments
YoY Change
Other Assets	$539.4M	$531.1M	$135.4M
YoY Change	285.0%	292.17%	47.47%
Total Long-Term Assets	$3.508B	$2.863B	$2.466B
YoY Change	42.58%	16.13%	15.63%
TOTAL ASSETS
Total Short-Term Assets	$2.477B	$2.636B	$2.328B
Total Long-Term Assets	$3.508B	$2.863B	$2.466B
Total Assets	$5.985B	$5.500B	$4.794B
YoY Change	27.23%	14.72%	25.11%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$478.6M	$371.7M	$433.0M
YoY Change	24.79%	-14.16%	3.69%
Accrued Expenses	$344.6M	$295.2M	$265.1M
YoY Change	-5.68%	11.38%	7.18%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$77.87M	$77.87M	$177.9M
YoY Change	0.0%	-56.22%	207.07%
Total Short-Term Liabilities	$1.371B	$1.291B	$1.328B
YoY Change	10.67%	-2.75%	12.59%
LONG-TERM LIABILITIES
Long-Term Debt	$2.771B	$2.279B	$2.008B
YoY Change	39.28%	13.48%	17.99%
Other Long-Term Liabilities	$238.4M	$231.0M	$243.6M
YoY Change	-28.57%	-5.18%	5.61%
Total Long-Term Liabilities	$3.009B	$2.510B	$2.252B
YoY Change	29.54%	11.46%	16.51%
TOTAL LIABILITIES
Total Short-Term Liabilities	$1.371B	$1.291B	$1.328B
Total Long-Term Liabilities	$3.009B	$2.510B	$2.252B
Total Liabilities	$4.961B	$4.428B	$3.938B
YoY Change	29.83%	12.46%	24.75%
SHAREHOLDERS EQUITY
Retained Earnings	$1.799B	$1.758B	$1.331B
YoY Change	27.13%	32.06%	33.78%
Common Stock	$578.9M	$559.6M	$469.6M
YoY Change	18.53%	19.15%	16.48%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$1.328B	$1.216B	$898.1M
YoY Change	36.36%	35.42%	26.23%
Treasury Stock Shares	28.04M shares	26.70M shares	22.61M shares
Shareholders Equity	$1.024B	$1.071B	$856.4M
YoY Change
Total Liabilities & Shareholders Equity	$5.985B	$5.500B	$4.794B
YoY Change	27.23%	14.72%	25.11%

Cashflow Statement

Concept	2021 Q2	2021 Q1	2020 Q1
OPERATING ACTIVITIES
Net Income	$92.10M	$199.2M	$138.9M
YoY Change	-28.78%	43.43%	55.03%
Depreciation, Depletion And Amortization	$27.75M	$21.40M	$20.80M
YoY Change	33.83%	2.88%	14.29%
Cash From Operating Activities	-$10.66M	-$80.30M	$184.9M
YoY Change	-107.59%	-143.43%	-14.56%
INVESTING ACTIVITIES
Capital Expenditures	-$9.008M	-$33.20M	-$37.40M
YoY Change	-55.18%	-11.23%	2.19%
Acquisitions	$665.6M
YoY Change
Other Investing Activities	-$667.6M	-$2.300M	$0.00
YoY Change			-100.0%
Cash From Investing Activities	-$676.6M	-$35.40M	-$37.40M
YoY Change	3273.17%	-5.35%	20.26%
FINANCING ACTIVITIES
Cash Dividend Paid	$51.64M
YoY Change	17.82%
Common Stock Issuance & Retirement, Net	$118.0M
YoY Change	44.89%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	$318.2M	-234.6M	-102.5M
YoY Change	-231.66%	128.88%	-9.45%
NET CHANGE
Cash From Operating Activities	-$10.66M	-80.30M	184.9M
Cash From Investing Activities	-$676.6M	-35.40M	-37.40M
Cash From Financing Activities	$318.2M	-234.6M	-102.5M
Net Change In Cash	-$369.1M	-350.3M	45.00M
YoY Change	204.31%	-878.44%	-37.59%
FREE CASH FLOW
Cash From Operating Activities	-$10.66M	-$80.30M	$184.9M
Capital Expenditures	-$9.008M	-$33.20M	-$37.40M
Free Cash Flow	-$1.654M	-$47.10M	$222.3M
YoY Change	-101.03%	-121.19%	-12.13%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2020	us-gaap	Accounting Standards Update Extensible List AccountingStandardsUpdateExtensibleList	us-gaap:AccountingStandardsUpdate201613Member
CY2021	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2021
CY2021	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2021	dei	Entity Central Index Key EntityCentralIndexKey	0001443646
CY2021	dei	Amendment Flag AmendmentFlag	false
CY2021	dei	Document Type DocumentType	10-K
CY2021	dei	Document Annual Report DocumentAnnualReport	true
CY2021	dei	Document Period End Date DocumentPeriodEndDate	2021-03-31
CY2021	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--03-31
CY2021	dei	Document Transition Report DocumentTransitionReport	false
CY2021	dei	Entity File Number EntityFileNumber	001-34972
CY2021	dei	Entity Registrant Name EntityRegistrantName	Booz Allen Hamilton Holding Corporation
CY2021	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2021	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	26-2634160
CY2021	dei	Entity Address Address Line1 EntityAddressAddressLine1	8283 Greensboro Drive,
CY2021	dei	Entity Address City Or Town EntityAddressCityOrTown	McLean,
CY2021	dei	Entity Address State Or Province EntityAddressStateOrProvince	VA
CY2021	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	22102
CY2021	dei	City Area Code CityAreaCode	703
CY2021	dei	Local Phone Number LocalPhoneNumber	902-5000
CY2021	dei	Security12b Title Security12bTitle	Class A Common Stock
CY2021	dei	Trading Symbol TradingSymbol	BAH
CY2021	dei	Security Exchange Name SecurityExchangeName	NYSE
CY2021	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2021	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2021	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2021	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2021	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2021	dei	Entity Small Business EntitySmallBusiness	false
CY2021	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2021	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2021	dei	Entity Shell Company EntityShellCompany	false
CY2020Q3	dei	Entity Public Float EntityPublicFloat	11257045142	USD
CY2021Q2	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	135407562	shares
CY2021Q1	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	990955000	USD
CY2020Q1	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	741901000	USD
CY2021Q1	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	1411894000	USD
CY2020Q1	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	1459471000	USD
CY2021Q1	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	233323000	USD
CY2020Q1	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	126816000	USD
CY2021Q1	us-gaap	Assets Current AssetsCurrent	2636172000	USD
CY2020Q1	us-gaap	Assets Current AssetsCurrent	2328188000	USD
CY2021Q1	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	204642000	USD
CY2020Q1	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	208077000	USD
CY2021Q1	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	239374000	USD
CY2020Q1	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	240122000	USD
CY2021Q1	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	307128000	USD
CY2020Q1	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	300987000	USD
CY2021Q1	us-gaap	Goodwill Goodwill	1581160000	USD
CY2020Q1	us-gaap	Goodwill Goodwill	1581160000	USD
CY2021Q1	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	531125000	USD
CY2020Q1	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	135432000	USD
CY2021Q1	us-gaap	Assets Assets	5499601000	USD
CY2020Q1	us-gaap	Assets Assets	4793966000	USD
CY2021Q1	us-gaap	Long Term Debt Current LongTermDebtCurrent	77865000	USD
CY2020Q1	us-gaap	Long Term Debt Current LongTermDebtCurrent	177865000	USD
CY2021Q1	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	666971000	USD
CY2020Q1	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	698011000	USD
CY2021Q1	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	425615000	USD
CY2020Q1	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	348775000	USD
CY2021Q1	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	54956000	USD
CY2020Q1	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	49021000	USD
CY2021Q1	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	65698000	USD
CY2020Q1	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	54006000	USD
CY2021Q1	us-gaap	Liabilities Current LiabilitiesCurrent	1291105000	USD
CY2020Q1	us-gaap	Liabilities Current LiabilitiesCurrent	1327678000	USD
CY2021Q1	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	2278731000	USD
CY2020Q1	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	2007979000	USD
CY2021Q1	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	263144000	USD
CY2020Q1	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	270266000	USD
CY2021Q1	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	364461000	USD
CY2020Q1	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	88086000	USD
CY2021Q1	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	230984000	USD
CY2020Q1	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	243601000	USD
CY2021Q1	us-gaap	Liabilities Liabilities	4428425000	USD
CY2020Q1	us-gaap	Liabilities Liabilities	3937610000	USD
CY2021Q1	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2020Q1	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2020Q1	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2021Q1	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2020Q1	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	600000000	shares
CY2021Q1	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	600000000	shares
CY2021Q1	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	162950606	shares
CY2020Q1	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	161333973	shares
CY2021Q1	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	136246029	shares
CY2020Q1	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	138719921	shares
CY2021Q1	us-gaap	Common Stock Value CommonStockValue	1629000	USD
CY2020Q1	us-gaap	Common Stock Value CommonStockValue	1613000	USD
CY2021Q1	us-gaap	Treasury Stock Shares TreasuryStockShares	26704577	shares
CY2020Q1	us-gaap	Treasury Stock Shares TreasuryStockShares	22614052	shares
CY2021Q1	us-gaap	Treasury Stock Value TreasuryStockValue	1216163000	USD
CY2020Q1	us-gaap	Treasury Stock Value TreasuryStockValue	898095000	USD
CY2021Q1	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	557957000	USD
CY2020Q1	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	468027000	USD
CY2021Q1	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	1757524000	USD
CY2020Q1	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	1330812000	USD
CY2021Q1	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-29771000	USD
CY2020Q1	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-46001000	USD
CY2021Q1	us-gaap	Stockholders Equity StockholdersEquity	1071176000	USD
CY2020Q1	us-gaap	Stockholders Equity StockholdersEquity	856356000	USD
CY2021Q1	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	5499601000	USD
CY2020Q1	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	4793966000	USD
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	7858938000	USD
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	7463841000	USD
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	6704037000	USD
CY2021	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	3657530000	USD
CY2020	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	3379180000	USD
CY2019	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	3100466000	USD
CY2021	bah	Billable Expenses BillableExpenses	2325888000	USD
CY2020	bah	Billable Expenses BillableExpenses	2298413000	USD
CY2019	bah	Billable Expenses BillableExpenses	2004664000	USD
CY2021	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	1036834000	USD
CY2020	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	1035965000	USD
CY2019	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	927938000	USD
CY2021	us-gaap	Depreciation And Amortization DepreciationAndAmortization	84315000	USD
CY2020	us-gaap	Depreciation And Amortization DepreciationAndAmortization	81081000	USD
CY2019	us-gaap	Depreciation And Amortization DepreciationAndAmortization	68575000	USD
CY2021	us-gaap	Costs And Expenses CostsAndExpenses	7104567000	USD
CY2020	us-gaap	Costs And Expenses CostsAndExpenses	6794639000	USD
CY2019	us-gaap	Costs And Expenses CostsAndExpenses	6101643000	USD
CY2021	us-gaap	Operating Income Loss OperatingIncomeLoss	754371000	USD
CY2020	us-gaap	Operating Income Loss OperatingIncomeLoss	669202000	USD
CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	602394000	USD
CY2021	us-gaap	Interest Expense InterestExpense	81270000	USD
CY2020	us-gaap	Interest Expense InterestExpense	96960000	USD
CY2019	us-gaap	Interest Expense InterestExpense	89517000	USD
CY2021	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-10662000	USD
CY2020	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	7192000	USD
CY2019	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	2526000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	662439000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	579434000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	515403000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	53481000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	96831000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	96874000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	608958000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	482603000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	418529000	USD
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.40
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.43
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.94
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	4.37
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.41
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.91
CY2021	us-gaap	Net Income Loss NetIncomeLoss	608958000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	482603000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	418529000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	13665000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-39752000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-7971000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-2565000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-4941000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-11887000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	16230000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-34811000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	3916000	USD
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	625188000	USD
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	447792000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	422445000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	608958000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	482603000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	418529000	USD
CY2021	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	84315000	USD
CY2020	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	81081000	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	68575000	USD
CY2021	bah	Noncash Lease Expense NoncashLeaseExpense	53202000	USD
CY2020	bah	Noncash Lease Expense NoncashLeaseExpense	55096000	USD
CY2019	bah	Noncash Lease Expense NoncashLeaseExpense	0	USD
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	59844000	USD
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	43290000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	31275000	USD
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	231998000	USD
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	65434000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	23006000	USD
CY2021	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	4395000	USD
CY2020	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	4688000	USD
CY2019	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	5052000	USD
CY2021	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-13239000	USD
CY2020	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-1451000	USD
CY2019	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-4302000	USD
CY2021	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	3322000	USD
CY2020	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	-1772000	USD
CY2019	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	5464000	USD
CY2021	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-47081000	USD
CY2020	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	129107000	USD
CY2019	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	196453000	USD
CY2021	us-gaap	Increase Decrease In Income Taxes Payable Net Of Income Taxes Receivable IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable	-363396000	USD
CY2020	us-gaap	Increase Decrease In Income Taxes Payable Net Of Income Taxes Receivable IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable	-122977000	USD
CY2019	us-gaap	Increase Decrease In Income Taxes Payable Net Of Income Taxes Receivable IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable	21634000	USD
CY2021	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	1797000	USD
CY2020	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	13500000	USD
CY2019	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	2328000	USD
CY2021	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	3272000	USD
CY2020	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	6000	USD
CY2019	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	15346000	USD
CY2021	us-gaap	Increase Decrease In Employee Related Liabilities IncreaseDecreaseInEmployeeRelatedLiabilities	71713000	USD
CY2020	us-gaap	Increase Decrease In Employee Related Liabilities IncreaseDecreaseInEmployeeRelatedLiabilities	18044000	USD
CY2019	us-gaap	Increase Decrease In Employee Related Liabilities IncreaseDecreaseInEmployeeRelatedLiabilities	44137000	USD
CY2021	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-31506000	USD
CY2020	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	48260000	USD
CY2019	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	107644000	USD
CY2021	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	-9463000	USD
CY2020	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	5016000	USD
CY2019	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	-7885000	USD
CY2021	bah	Increase Decrease In Operating Lease Liabilities IncreaseDecreaseInOperatingLeaseLiabilities	-53641000	USD
CY2020	bah	Increase Decrease In Operating Lease Liabilities IncreaseDecreaseInOperatingLeaseLiabilities	-37651000	USD
CY2019	bah	Increase Decrease In Operating Lease Liabilities IncreaseDecreaseInOperatingLeaseLiabilities	0	USD
CY2021	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	10336000	USD
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	457911000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-2968000	USD
CY2020Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	741901000	USD
CY2020	us-gaap	Interest Paid Net InterestPaidNet	84125000	USD
CY2019	us-gaap	Interest Paid Net InterestPaidNet	76731000	USD
CY2021	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	176711000	USD
CY2019Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	283990000	USD
CY2018Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	286958000	USD
CY2021Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	990955000	USD
CY2020Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	741901000	USD
CY2019Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	283990000	USD
CY2021	us-gaap	Interest Paid Net InterestPaidNet	60955000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-89212000	USD
CY2021	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	19408000	USD
CY2020	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	14987000	USD
CY2019	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	11266000	USD
CY2021	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	11747000	USD
CY2020	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	8925000	USD
CY2019	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	12116000	USD
CY2021	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	313397000	USD
CY2020	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	182224000	USD
CY2019	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	252824000	USD
CY2021	us-gaap	Payments Of Dividends PaymentsOfDividends	181066000	USD
CY2020	us-gaap	Payments Of Dividends PaymentsOfDividends	146602000	USD
CY2019	us-gaap	Payments Of Dividends PaymentsOfDividends	114234000	USD
CY2021	us-gaap	Payments Of Debt Extinguishment Costs PaymentsOfDebtExtinguishmentCosts	8971000	USD
CY2020	us-gaap	Payments Of Debt Extinguishment Costs PaymentsOfDebtExtinguishmentCosts	0	USD
CY2019	us-gaap	Payments Of Debt Extinguishment Costs PaymentsOfDebtExtinguishmentCosts	0	USD
CY2021	us-gaap	Repayments Of Debt RepaymentsOfDebt	527865000	USD
CY2020	us-gaap	Repayments Of Debt RepaymentsOfDebt	76922000	USD
CY2019	us-gaap	Repayments Of Debt RepaymentsOfDebt	170512000	USD
CY2021	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	691496000	USD
CY2020	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	497891000	USD
CY2019	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	102071000	USD
CY2021	bah	Deferred Payment Obligation Payment DeferredPaymentObligationPayment	0	USD
CY2020	bah	Deferred Payment Obligation Payment DeferredPaymentObligationPayment	80000000	USD
CY2019	bah	Deferred Payment Obligation Payment DeferredPaymentObligationPayment	0	USD
CY2021	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-2698000	USD
CY2020	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-1493000	USD
CY2019	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-1249000	USD
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-311346000	USD
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	34562000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-413366000	USD
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	249054000	USD
CY2020	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	109754000	USD
CY2020	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	47934000	USD
CY2019	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	2932000	USD
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	718684000	USD
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	551428000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	499610000	USD
CY2021	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	87210000	USD
CY2020	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	128079000	USD
CY2019	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	94681000	USD
CY2021	us-gaap	Payments For Proceeds From Businesses And Interest In Affiliates PaymentsForProceedsFromBusinessesAndInterestInAffiliates	74168000	USD
CY2020	us-gaap	Payments For Proceeds From Businesses And Interest In Affiliates PaymentsForProceedsFromBusinessesAndInterestInAffiliates	0	USD
CY2019	us-gaap	Payments For Proceeds From Businesses And Interest In Affiliates PaymentsForProceedsFromBusinessesAndInterestInAffiliates	0	USD
CY2021	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	3094000	USD
CY2020	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	0	USD
CY2019	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	5469000	USD
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-158284000	USD
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-128079000	USD
CY2019	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	52512000	USD
CY2021	bah	Share Repurchases Incurred But Not Yet Paid ShareRepurchasesIncurredButNotYetPaid	15408000	USD
CY2020	bah	Share Repurchases Incurred But Not Yet Paid ShareRepurchasesIncurredButNotYetPaid	10736000	USD
CY2019	bah	Share Repurchases Incurred But Not Yet Paid ShareRepurchasesIncurredButNotYetPaid	6315000	USD
CY2021	bah	Noncash Financing Activities NoncashFinancingActivities	178000	USD
CY2020	bah	Noncash Financing Activities NoncashFinancingActivities	3920000	USD
CY2019	bah	Noncash Financing Activities NoncashFinancingActivities	3033000	USD
CY2018Q1	us-gaap	Stockholders Equity StockholdersEquity	562491000	USD
CY2019	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	11266000	USD
CY2019	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	12116000	USD
CY2019	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	249993000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	418529000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	3916000	USD
CY2019	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.80
CY2019	us-gaap	Dividends Cash DividendsCash	114234000	USD
CY2019	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	31275000	USD
CY2019Q1	us-gaap	Stockholders Equity StockholdersEquity	675366000	USD
CY2020	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	14987000	USD
CY2020	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	8925000	USD
CY2020	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	186645000	USD
CY2020	bah	Adjustments To Additional Paid In Capital Recognition Of Liability Related To Future Restricted Stock Units Vesting AdjustmentsToAdditionalPaidInCapitalRecognitionOfLiabilityRelatedToFutureRestrictedStockUnitsVesting	757000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	482603000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-34811000	USD
CY2020	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.04
CY2020	us-gaap	Dividends Cash DividendsCash	146602000	USD
CY2020	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	43290000	USD
CY2020Q1	us-gaap	Stockholders Equity StockholdersEquity	856356000	USD
CY2021	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	18814000	USD
CY2021	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	11747000	USD
CY2021	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	318068000	USD
CY2021	bah	Adjustments To Additional Paid In Capital Recognition Of Liability Related To Future Restricted Stock Units Vesting AdjustmentsToAdditionalPaidInCapitalRecognitionOfLiabilityRelatedToFutureRestrictedStockUnitsVesting	456000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	608958000	USD
CY2019	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	0	USD
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	16230000	USD
CY2021	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.30
CY2021	us-gaap	Dividends Cash DividendsCash	181066000	USD
CY2021	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	59841000	USD
CY2021Q1	us-gaap	Stockholders Equity StockholdersEquity	1071176000	USD
CY2021	us-gaap	Nature Of Operations NatureOfOperations	BUSINESS OVERVIEW<div style="margin-top:6pt;text-indent:11.25pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Our Business</span></div><div style="margin-bottom:12pt;margin-top:6pt;text-indent:22.5pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Booz Allen Hamilton Holding Corporation, including its wholly owned subsidiaries, or the Company, we, us, and our, was incorporated in Delaware in May 2008. The Company provides management and technology consulting, analytics, engineering, digital solutions, mission operations, and cyber services to U.S. and international governments, major corporations, and not-for-profit organizations. The Company reports operating results and financial data in one reportable segment. The Company is headquartered in McLean, Virginia, with approximately 27,700 employees as of March 31, 2021.</span></div>
CY2021	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	1	segment
CY2021	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	1	segment
CY2021Q1	dei	Entity Number Of Employees EntityNumberOfEmployees	27700	employee
CY2021	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	Certain amounts reported in the Company's prior year consolidated financial statements have been reclassified to conform to the current year presentation.
CY2021	us-gaap	Use Of Estimates UseOfEstimates	<div style="margin-top:9pt;text-indent:13.5pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Accounting Estimates</span></div><div style="margin-top:9pt;text-indent:22.5pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements, and the reported amounts of revenue and expenses during the reporting periods. Areas of the consolidated financial statements where estimates may have the most significant effect include the provision for claimed indirect costs, valuation and expected lives of tangible and intangible assets, contingent consideration related to business acquisitions, impairment of long-lived assets, accrued liabilities, revenue recognition, including the accrual of indirect costs, bonus and other incentive compensation, stock-based compensation, reserves for uncertain tax positions and valuation allowances on deferred tax assets, provisions for income taxes, postretirement obligations, collectability of receivables, and loss accruals for litigation. Actual results experienced by the Company may differ materially from management's estimates.</span></div>
CY2021	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<div style="margin-top:6pt;text-indent:11.25pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Concentrations of Credit Risk</span></div><div style="margin-top:6pt;text-indent:24.75pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Financial instruments that potentially subject the Company to concentrations of credit risk consist primarily of cash equivalents and accounts receivable. The Company’s cash equivalents are generally invested in U.S. government money market funds and money market deposit accounts. The Company believes that credit risk for accounts receivable is limited as the receivables are primarily with the U.S. government.</span></div>
CY2021	us-gaap	Impairment Of Intangible Assets Finitelived ImpairmentOfIntangibleAssetsFinitelived	0	USD
CY2019	us-gaap	Impairment Of Intangible Assets Finitelived ImpairmentOfIntangibleAssetsFinitelived	0	USD
CY2020	us-gaap	Impairment Of Intangible Assets Finitelived ImpairmentOfIntangibleAssetsFinitelived	0	USD
CY2020	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2019	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2021	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2020	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	0	USD
CY2021	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	0	USD
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	7858938000	USD
CY2021	bah	Revenue From Contract With Customer Excluding Assessed Tax Percentage RevenueFromContractWithCustomerExcludingAssessedTaxPercentage	1
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	7463841000	USD
CY2020	bah	Revenue From Contract With Customer Excluding Assessed Tax Percentage RevenueFromContractWithCustomerExcludingAssessedTaxPercentage	1
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	6704037000	USD
CY2019	bah	Revenue From Contract With Customer Excluding Assessed Tax Percentage RevenueFromContractWithCustomerExcludingAssessedTaxPercentage	1
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	7858938000	USD
CY2021	bah	Revenue From Contract With Customer Excluding Assessed Tax Percentage RevenueFromContractWithCustomerExcludingAssessedTaxPercentage	1
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	7463841000	USD
CY2020	bah	Revenue From Contract With Customer Excluding Assessed Tax Percentage RevenueFromContractWithCustomerExcludingAssessedTaxPercentage	1
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	6704037000	USD
CY2019	bah	Revenue From Contract With Customer Excluding Assessed Tax Percentage RevenueFromContractWithCustomerExcludingAssessedTaxPercentage	1
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	7858938000	USD
CY2021	bah	Revenue From Contract With Customer Excluding Assessed Tax Percentage RevenueFromContractWithCustomerExcludingAssessedTaxPercentage	1
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	7463841000	USD
CY2020	bah	Revenue From Contract With Customer Excluding Assessed Tax Percentage RevenueFromContractWithCustomerExcludingAssessedTaxPercentage	1
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	6704037000	USD
CY2019	bah	Revenue From Contract With Customer Excluding Assessed Tax Percentage RevenueFromContractWithCustomerExcludingAssessedTaxPercentage	1
CY2021Q1	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	6700000000	USD
CY2020Q1	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	6300000000	USD
CY2021Q1	us-gaap	Revenue Remaining Performance Obligation Percentage RevenueRemainingPerformanceObligationPercentage	0.70
CY2021Q1	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P12M
CY2021Q1	us-gaap	Revenue Remaining Performance Obligation Percentage RevenueRemainingPerformanceObligationPercentage	0.85
CY2021Q1	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P24M
CY2021Q1	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	1037968000	USD
CY2020Q1	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	988634000	USD
CY2021Q1	us-gaap	Contract With Customer Asset Net Noncurrent ContractWithCustomerAssetNetNoncurrent	63869000	USD
CY2020Q1	us-gaap	Contract With Customer Asset Net Noncurrent ContractWithCustomerAssetNetNoncurrent	62600000	USD
CY2021Q1	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	1101837000	USD
CY2020Q1	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	1051234000	USD
CY2021Q1	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	15906000	USD
CY2020Q1	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	26018000	USD
CY2021	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	24500000	USD
CY2020	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	18900000	USD
CY2019	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	25300000	USD
CY2021	us-gaap	Undistributed Earnings UndistributedEarnings	605437000	USD
CY2020	us-gaap	Undistributed Earnings UndistributedEarnings	481085000	USD
CY2019	us-gaap	Undistributed Earnings UndistributedEarnings	416664000	USD
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	137722589	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	140059494	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	141910799	shares
CY2021	us-gaap	Undistributed Earnings Diluted UndistributedEarningsDiluted	605455000	USD
CY2020	us-gaap	Undistributed Earnings Diluted UndistributedEarningsDiluted	481092000	USD
CY2019	us-gaap	Undistributed Earnings Diluted UndistributedEarningsDiluted	416675000	USD
CY2021	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	980631	shares
CY2020	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	1178641	shares
CY2019	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	1245377	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	138703220	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	141238135	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	143156176	shares
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.40
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.43
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.94
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	4.37
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.41
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.91
CY2021Q1	us-gaap	Goodwill Goodwill	1581200000	USD
CY2020Q1	us-gaap	Goodwill Goodwill	1581200000	USD
CY2021Q1	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	197372000	USD
CY2021Q1	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	80444000	USD
CY2021Q1	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	116928000	USD
CY2020Q1	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	189760000	USD
CY2020Q1	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	78973000	USD
CY2020Q1	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	110787000	USD
CY2021Q1	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	387572000	USD
CY2021Q1	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	80444000	USD
CY2021Q1	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	307128000	USD
CY2020Q1	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	379960000	USD
CY2020Q1	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	78973000	USD
CY2020Q1	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	300987000	USD
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	19300000	USD
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	22300000	USD
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	20900000	USD
CY2021Q1	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	17824000	USD
CY2021Q1	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	15587000	USD
CY2021Q1	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	11796000	USD
CY2021Q1	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	6801000	USD
CY2021Q1	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	4074000	USD
CY2021Q1	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	4865000	USD
CY2021Q1	bah	Finite Lived Intangible Assets Net Excluding Assets Not Yet Placedin Service FiniteLivedIntangibleAssetsNetExcludingAssetsNotYetPlacedinService	60947000	USD
CY2021Q1	us-gaap	Billed Contract Receivables BilledContractReceivables	375383000	USD
CY2020Q1	us-gaap	Billed Contract Receivables BilledContractReceivables	474822000	USD
CY2021Q1	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	1037968000	USD
CY2020Q1	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	988634000	USD
CY2021Q1	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	1457000	USD
CY2020Q1	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	3985000	USD
CY2021Q1	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	1411894000	USD
CY2020Q1	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	1459471000	USD
CY2021Q1	us-gaap	Contract With Customer Asset Net Noncurrent ContractWithCustomerAssetNetNoncurrent	63869000	USD
CY2020Q1	us-gaap	Contract With Customer Asset Net Noncurrent ContractWithCustomerAssetNetNoncurrent	62600000	USD
CY2021Q1	us-gaap	Accounts Receivable Net AccountsReceivableNet	1475763000	USD
CY2020Q1	us-gaap	Accounts Receivable Net AccountsReceivableNet	1522071000	USD
CY2021	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	-2600000	USD
CY2020	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	-6400000	USD
CY2019	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	11900000	USD
CY2021Q1	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	440133000	USD
CY2020Q1	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	480446000	USD
CY2021Q1	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	235491000	USD
CY2020Q1	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	272369000	USD
CY2021Q1	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	204642000	USD
CY2020Q1	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	208077000	USD
CY2021	us-gaap	Depreciation Depreciation	65000000.0	USD
CY2020	us-gaap	Depreciation Depreciation	58800000	USD
CY2019	us-gaap	Depreciation Depreciation	47800000	USD
CY2021	us-gaap	Accumulated Depreciation Depletion And Amortization Sale Of Property Plant And Equipment1 AccumulatedDepreciationDepletionAndAmortizationSaleOfPropertyPlantAndEquipment1	100300000	USD
CY2020	us-gaap	Accumulated Depreciation Depletion And Amortization Sale Of Property Plant And Equipment1 AccumulatedDepreciationDepletionAndAmortizationSaleOfPropertyPlantAndEquipment1	171800000	USD
CY2021Q1	us-gaap	Accounts Payable Trade Current AccountsPayableTradeCurrent	371744000	USD
CY2020Q1	us-gaap	Accounts Payable Trade Current AccountsPayableTradeCurrent	432953000	USD
CY2021Q1	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	295227000	USD
CY2020Q1	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	265058000	USD
CY2021Q1	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	666971000	USD
CY2020Q1	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	698011000	USD
CY2021Q1	us-gaap	Accrued Bonuses Current AccruedBonusesCurrent	130565000	USD
CY2020Q1	us-gaap	Accrued Bonuses Current AccruedBonusesCurrent	114359000	USD
CY2021Q1	us-gaap	Pension And Other Postretirement And Postemployment Benefit Plans Liabilities Current PensionAndOtherPostretirementAndPostemploymentBenefitPlansLiabilitiesCurrent	44474000	USD
CY2020Q1	us-gaap	Pension And Other Postretirement And Postemployment Benefit Plans Liabilities Current PensionAndOtherPostretirementAndPostemploymentBenefitPlansLiabilitiesCurrent	41604000	USD
CY2021Q1	us-gaap	Accrued Vacation Current AccruedVacationCurrent	202100000	USD
CY2020Q1	us-gaap	Accrued Vacation Current AccruedVacationCurrent	159512000	USD
CY2021Q1	us-gaap	Other Employee Related Liabilities Current OtherEmployeeRelatedLiabilitiesCurrent	48476000	USD
CY2020Q1	us-gaap	Other Employee Related Liabilities Current OtherEmployeeRelatedLiabilitiesCurrent	33300000	USD
CY2021Q1	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	425615000	USD
CY2019	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	5052000	USD
CY2021	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-13200000	USD
CY2020Q1	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	348775000	USD
CY2021Q1	us-gaap	Debt Instrument Unamortized Discount Premium And Debt Issuance Costs Net DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet	17380000	USD
CY2020Q1	us-gaap	Debt Instrument Unamortized Discount Premium And Debt Issuance Costs Net DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet	15997000	USD
CY2021Q1	us-gaap	Long Term Debt LongTermDebt	2356596000	USD
CY2020Q1	us-gaap	Long Term Debt LongTermDebt	2185844000	USD
CY2021Q1	us-gaap	Long Term Debt Current LongTermDebtCurrent	77865000	USD
CY2020Q1	us-gaap	Long Term Debt Current LongTermDebtCurrent	177865000	USD
CY2021Q1	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	2278731000	USD
CY2020Q1	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	2007979000	USD
CY2021	bah	Longterm Debt Maximum Expanded Loan Facility LongtermDebtMaximumExpandedLoanFacility	627000000	USD
CY2021	bah	Debt Covenant Expanded Loan Percentageof Consolidated Ebitda Required DebtCovenantExpandedLoanPercentageofConsolidatedEBITDARequired	1
CY2021	bah	Debt Instrument Net Secured Leverage Ratio Maximum DebtInstrumentNetSecuredLeverageRatioMaximum	3.50
CY2021	bah	Payment Of Premiums And Write Off Of Debt Issuance Costs PaymentOfPremiumsAndWriteOffOfDebtIssuanceCosts	9000000.0	USD
CY2021Q1	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	2373976000	USD
CY2021Q1	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	77865000	USD
CY2021Q1	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	77865000	USD
CY2021Q1	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	1145707000	USD
CY2021Q1	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	3891000	USD
CY2021Q1	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	3891000	USD
CY2021Q1	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	1064757000	USD
CY2021	bah	Deferred Payment Obligation Interest Payment DeferredPaymentObligationInterestPayment	0	USD
CY2020	bah	Deferred Payment Obligation Interest Payment DeferredPaymentObligationInterestPayment	5740000	USD
CY2019	bah	Deferred Payment Obligation Interest Payment DeferredPaymentObligationInterestPayment	7993000	USD
CY2021	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	4396000	USD
CY2020	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	4688000	USD
CY2021	bah	Interest Expense Debt Interest Swap InterestExpenseDebtInterestSwap	20558000	USD
CY2020	bah	Interest Expense Debt Interest Swap InterestExpenseDebtInterestSwap	2094000	USD
CY2019	bah	Interest Expense Debt Interest Swap InterestExpenseDebtInterestSwap	-1026000	USD
CY2021	bah	Interest Income Expense Other InterestIncomeExpenseOther	713000	USD
CY2020	bah	Interest Income Expense Other InterestIncomeExpenseOther	589000	USD
CY2019	bah	Interest Income Expense Other InterestIncomeExpenseOther	637000	USD
CY2021	us-gaap	Interest Expense InterestExpense	81270000	USD
CY2020	us-gaap	Interest Expense InterestExpense	96960000	USD
CY2019	us-gaap	Interest Expense InterestExpense	89517000	USD
CY2008Q3	bah	Deferred Payment Obligation Payment Period DeferredPaymentObligationPaymentPeriod	P8Y6M
CY2021	us-gaap	Operating Lease Cost OperatingLeaseCost	68702000	USD
CY2020	us-gaap	Operating Lease Cost OperatingLeaseCost	71067000	USD
CY2021Q1	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	364080000	USD
CY2021	us-gaap	Short Term Lease Cost ShortTermLeaseCost	3780000	USD
CY2020	us-gaap	Short Term Lease Cost ShortTermLeaseCost	9657000	USD
CY2021	us-gaap	Variable Lease Cost VariableLeaseCost	12843000	USD
CY2020	us-gaap	Variable Lease Cost VariableLeaseCost	11657000	USD
CY2021	us-gaap	Lease Cost LeaseCost	85325000	USD
CY2020	us-gaap	Lease Cost LeaseCost	92381000	USD
CY2019	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	82700000	USD
CY2019	us-gaap	Operating Leases Rent Expense Sublease Rentals1 OperatingLeasesRentExpenseSubleaseRentals1	600000	USD
CY2021Q1	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	68498000	USD
CY2021Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	71553000	USD
CY2021Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	62235000	USD
CY2021Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	57691000	USD
CY2021Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	45464000	USD
CY2021Q1	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	58639000	USD
CY2021Q1	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	45980000	USD
CY2021Q1	us-gaap	Operating Lease Liability OperatingLeaseLiability	318100000	USD
CY2021	us-gaap	Operating Lease Payments OperatingLeasePayments	69320000	USD
CY2020	us-gaap	Operating Lease Payments OperatingLeasePayments	53741000	USD
CY2021	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	52454000	USD
CY2020	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	26378000	USD
CY2021Q1	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P5Y6M10D
CY2020Q1	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P6Y7D
CY2021Q1	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0464
CY2020Q1	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0469
CY2021	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-227309000	USD
CY2020	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-2638000	USD
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	34019000	USD
CY2021	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	39542000	USD
CY2020	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	18410000	USD
CY2019	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	26232000	USD
CY2021	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	9250000	USD
CY2020	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	15625000	USD
CY2019	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	13617000	USD
CY2021	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	-178517000	USD
CY2020	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	31397000	USD
CY2019	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	73868000	USD
CY2021	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	245624000	USD
CY2020	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	59856000	USD
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	23258000	USD
CY2021	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-13626000	USD
CY2020	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	5578000	USD
CY2019	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-252000	USD
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	231998000	USD
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	65434000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	23006000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	53481000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	96831000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	96874000	USD
CY2021	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	139112000	USD
CY2020	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	121681000	USD
CY2019	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	108235000	USD
CY2021	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	17586000	USD
CY2020	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	20031000	USD
CY2019	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	22450000	USD
CY2021	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	6679000	USD
CY2020	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	12344000	USD
CY2019	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	10758000	USD
CY2021	us-gaap	Income Tax Reconciliation Nondeductible Expense Meals And Entertainment IncomeTaxReconciliationNondeductibleExpenseMealsAndEntertainment	653000	USD
CY2020	us-gaap	Income Tax Reconciliation Nondeductible Expense Meals And Entertainment IncomeTaxReconciliationNondeductibleExpenseMealsAndEntertainment	1761000	USD
CY2019	us-gaap	Income Tax Reconciliation Nondeductible Expense Meals And Entertainment IncomeTaxReconciliationNondeductibleExpenseMealsAndEntertainment	1771000	USD
CY2021	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	0	USD
CY2020	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	0	USD
CY2019	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	-27908000	USD
CY2021	bah	Effective Income Tax Rate Reconciliation Remeasurement Of Current Year Gain Loss Cares Act Amount EffectiveIncomeTaxRateReconciliationRemeasurementOfCurrentYearGainLossCARESActAmount	76767000	USD
CY2020	bah	Effective Income Tax Rate Reconciliation Remeasurement Of Current Year Gain Loss Cares Act Amount EffectiveIncomeTaxRateReconciliationRemeasurementOfCurrentYearGainLossCARESActAmount	0	USD
CY2019	bah	Effective Income Tax Rate Reconciliation Remeasurement Of Current Year Gain Loss Cares Act Amount EffectiveIncomeTaxRateReconciliationRemeasurementOfCurrentYearGainLossCARESActAmount	0	USD
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Amount EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount	-8556000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Amount EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount	-10265000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Amount EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount	-10777000	USD
CY2021	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	30313000	USD
CY2020	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	90898000	USD
CY2019	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	6355000	USD
CY2021	bah	Effective Income Tax Rate Reconciliation Nondeductible Expense Executive Compensation Cost Amount EffectiveIncomeTaxRateReconciliationNondeductibleExpenseExecutiveCompensationCostAmount	3813000	USD
CY2020	bah	Effective Income Tax Rate Reconciliation Nondeductible Expense Executive Compensation Cost Amount EffectiveIncomeTaxRateReconciliationNondeductibleExpenseExecutiveCompensationCostAmount	2346000	USD
CY2019	bah	Effective Income Tax Rate Reconciliation Nondeductible Expense Executive Compensation Cost Amount EffectiveIncomeTaxRateReconciliationNondeductibleExpenseExecutiveCompensationCostAmount	2615000	USD
CY2021	us-gaap	Income Tax Reconciliation Tax Settlements IncomeTaxReconciliationTaxSettlements	0	USD
CY2020	us-gaap	Income Tax Reconciliation Tax Settlements IncomeTaxReconciliationTaxSettlements	0	USD
CY2019	us-gaap	Income Tax Reconciliation Tax Settlements IncomeTaxReconciliationTaxSettlements	-2573000	USD
CY2021	bah	Effective Income Tax Rate Reconciliation Foreign Derived Intangible Income EffectiveIncomeTaxRateReconciliationForeignDerivedIntangibleIncome	4536000	USD
CY2020	bah	Effective Income Tax Rate Reconciliation Foreign Derived Intangible Income EffectiveIncomeTaxRateReconciliationForeignDerivedIntangibleIncome	4915000	USD
CY2019	bah	Effective Income Tax Rate Reconciliation Foreign Derived Intangible Income EffectiveIncomeTaxRateReconciliationForeignDerivedIntangibleIncome	0	USD
CY2021	us-gaap	Income Tax Reconciliation Tax Contingencies IncomeTaxReconciliationTaxContingencies	6793000	USD
CY2020	us-gaap	Income Tax Reconciliation Tax Contingencies IncomeTaxReconciliationTaxContingencies	44621000	USD
CY2019	us-gaap	Income Tax Reconciliation Tax Contingencies IncomeTaxReconciliationTaxContingencies	-278000	USD
CY2021	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-983000	USD
CY2020	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	125000	USD
CY2019	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-1064000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	53481000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	96831000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	96874000	USD
CY2021	bah	Income Tax Expense Benefit Remeasurement Of Net Operating Losses Cares Act IncomeTaxExpenseBenefitRemeasurementOfNetOperatingLossesCARESAct	-76800000	USD
CY2021Q1	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	175541000	USD
CY2020Q1	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	69734000	USD
CY2021Q1	us-gaap	Income Taxes Receivable Noncurrent IncomeTaxesReceivableNoncurrent	333188000	USD
CY2020Q1	us-gaap	Income Taxes Receivable Noncurrent IncomeTaxesReceivableNoncurrent	53848000	USD
CY2021Q1	us-gaap	Taxes Payable Current TaxesPayableCurrent	30694000	USD
CY2020Q1	us-gaap	Taxes Payable Current TaxesPayableCurrent	5178000	USD
CY2021Q1	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	78005000	USD
CY2020Q1	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	67230000	USD
CY2021Q1	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	52191000	USD
CY2020Q1	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	36448000	USD
CY2021Q1	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	5724000	USD
CY2020Q1	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	6909000	USD
CY2021Q1	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Postretirement Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits	32881000	USD
CY2020Q1	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	273664000	USD
CY2020Q1	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Postretirement Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits	32437000	USD
CY2021Q1	bah	Deferred Tax Assets Net Operating Loss Capital Loss Carryforwards DeferredTaxAssetsNetOperatingLossCapitalLossCarryforwards	98471000	USD
CY2020Q1	bah	Deferred Tax Assets Net Operating Loss Capital Loss Carryforwards DeferredTaxAssetsNetOperatingLossCapitalLossCarryforwards	5741000	USD
CY2021Q1	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits	2838000	USD
CY2020Q1	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits	2779000	USD
CY2021Q1	us-gaap	Deferred Tax Assets Derivative Instruments DeferredTaxAssetsDerivativeInstruments	9955000	USD
CY2020Q1	us-gaap	Deferred Tax Assets Derivative Instruments DeferredTaxAssetsDerivativeInstruments	14774000	USD
CY2021Q1	bah	Deferred Tax Assets Tax Credit Carryforwards Domestic DeferredTaxAssetsTaxCreditCarryforwardsDomestic	12582000	USD
CY2020Q1	bah	Deferred Tax Assets Tax Credit Carryforwards Domestic DeferredTaxAssetsTaxCreditCarryforwardsDomestic	0	USD
CY2021Q1	bah	Deferred Tax Assets Tax Credit Carryforwards State DeferredTaxAssetsTaxCreditCarryforwardsState	27243000	USD
CY2020Q1	bah	Deferred Tax Assets Tax Credit Carryforwards State DeferredTaxAssetsTaxCreditCarryforwardsState	19214000	USD
CY2021Q1	bah	Deferred Tax Assets Operating Lease Liability DeferredTaxAssetsOperatingLeaseLiability	86046000	USD
CY2020Q1	bah	Deferred Tax Assets Operating Lease Liability DeferredTaxAssetsOperatingLeaseLiability	86565000	USD
CY2021Q1	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	3378000	USD
CY2020Q1	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	1567000	USD
CY2021Q1	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	409314000	USD
CY2019Q1	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	11083000	USD
CY2021Q1	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	6165000	USD
CY2020Q1	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	4296000	USD
CY2021Q1	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	403149000	USD
CY2020Q1	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	269368000	USD
CY2021Q1	bah	Deferred Tax Liabilities Current Accounts Receivable Unbilled DeferredTaxLiabilitiesCurrentAccountsReceivableUnbilled	245809000	USD
CY2020Q1	bah	Deferred Tax Liabilities Current Accounts Receivable Unbilled DeferredTaxLiabilitiesCurrentAccountsReceivableUnbilled	199869000	USD
CY2021Q1	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	69519000	USD
CY2020Q1	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	64530000	USD
CY2021Q1	us-gaap	Deferred Tax Liabilities Deferred Expense Deferred Financing Costs DeferredTaxLiabilitiesDeferredExpenseDeferredFinancingCosts	1488000	USD
CY2020Q1	us-gaap	Deferred Tax Liabilities Deferred Expense Deferred Financing Costs DeferredTaxLiabilitiesDeferredExpenseDeferredFinancingCosts	1939000	USD
CY2021Q1	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	336321000	USD
CY2020Q1	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	12820000	USD
CY2021Q1	bah	Deferred Tax Liabilities Operating Lease Rightof Use Asset DeferredTaxLiabilitiesOperatingLeaseRightofUseAsset	62442000	USD
CY2020Q1	bah	Deferred Tax Liabilities Operating Lease Rightof Use Asset DeferredTaxLiabilitiesOperatingLeaseRightofUseAsset	62623000	USD
CY2021Q1	bah	Deferred Tax Liabilities Internally Developed Software DeferredTaxLiabilitiesInternallyDevelopedSoftware	20309000	USD
CY2020Q1	bah	Deferred Tax Liabilities Internally Developed Software DeferredTaxLiabilitiesInternallyDevelopedSoftware	15673000	USD
CY2021	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	5000000.0	USD
CY2021Q1	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	735888000	USD
CY2020Q1	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	357454000	USD
CY2021Q1	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	332739000	USD
CY2020Q1	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	88086000	USD
CY2021Q1	bah	Liability For Uncertainty In Income Taxes LiabilityForUncertaintyInIncomeTaxes	62900000	USD
CY2020Q1	bah	Liability For Uncertainty In Income Taxes LiabilityForUncertaintyInIncomeTaxes	56100000	USD
CY2019Q1	bah	Liability For Uncertainty In Income Taxes LiabilityForUncertaintyInIncomeTaxes	11500000	USD
CY2021Q1	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	62700000	USD
CY2020Q1	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	55200000	USD
CY2019Q1	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	11100000	USD
CY2021Q1	bah	Unrecognized Tax Benefits That Impact Deferred Tax Liabilities UnrecognizedTaxBenefitsThatImpactDeferredTaxLiabilities	11100000	USD
CY2020Q1	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	55221000	USD
CY2019Q1	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	11083000	USD
CY2018Q1	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	11608000	USD
CY2021	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	5018000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	34001000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	93000	USD
CY2021	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	12753000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	10970000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	575000	USD
CY2021	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromCurrentPeriodTaxPositions	0	USD
CY2020	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromCurrentPeriodTaxPositions	765000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromCurrentPeriodTaxPositions	0	USD
CY2021	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0	USD
CY2020	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0	USD
CY2019	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	731000	USD
CY2021	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	10250000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	68000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	462000	USD
CY2021Q1	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	62742000	USD
CY2020Q1	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	55221000	USD
CY2021	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	12800000	USD
CY2021	bah	Unrecognized Tax Benefits Reasonably Possible Reduction Resultingfrom Lapseof Applicable Statuteof Limitations UnrecognizedTaxBenefitsReasonablyPossibleReductionResultingfromLapseofApplicableStatuteofLimitations	10300000	USD
CY2021	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	300000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	500000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	200000	USD
CY2021Q1	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	1200000	USD
CY2020Q1	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	900000	USD
CY2019Q1	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	400000	USD
CY2021	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent Of Match DefinedContributionPlanEmployerMatchingContributionPercentOfMatch	0.06
CY2021	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	166300000	USD
CY2020	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	151000000.0	USD
CY2019	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	136300000	USD
CY2021	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	163000000.0	USD
CY2020	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	146500000	USD
CY2019	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	130900000	USD
CY2021Q1	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Next Twelve Months DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths	4057000	USD
CY2021Q1	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Two DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo	4434000	USD
CY2021Q1	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Three DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree	4790000	USD
CY2021Q1	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Four DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour	5062000	USD
CY2021Q1	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Five DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive	5485000	USD
CY2021Q1	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Five Fiscal Years Thereafter DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter	32152000	USD
CY2021Q1	us-gaap	Defined Benefit Plan Accumulated Other Comprehensive Income Net Gains Losses Before Tax DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax	3400000	USD
CY2021	bah	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	900000	USD
CY2020Q1	us-gaap	Defined Benefit Plan Accumulated Other Comprehensive Income Net Gains Losses Before Tax DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax	6600000	USD
CY2020	bah	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	1700000	USD
CY2021Q1	us-gaap	Postemployment Benefits Liability Noncurrent PostemploymentBenefitsLiabilityNoncurrent	10900000	USD
CY2020Q1	us-gaap	Postemployment Benefits Liability Noncurrent PostemploymentBenefitsLiabilityNoncurrent	10700000	USD
CY2019	bah	Increase Decrease In Postemployment Benefits Liability Noncurrent IncreaseDecreaseInPostemploymentBenefitsLiabilityNoncurrent	-11200000	USD
CY2021	bah	Deferred Compensation Plans Maximum Eligible Deferralof Compensation Percentage DeferredCompensationPlansMaximumEligibleDeferralofCompensationPercentage	1
CY2021Q1	us-gaap	Deferred Compensation Plan Assets DeferredCompensationPlanAssets	14100000	USD
CY2020Q1	us-gaap	Deferred Compensation Plan Assets DeferredCompensationPlanAssets	5900000	USD
CY2021	us-gaap	Oci Before Reclassifications Net Of Tax Attributable To Parent OciBeforeReclassificationsNetOfTaxAttributableToParent	952000	USD
CY2021	us-gaap	Reclassification From Aoci Current Period Net Of Tax Attributable To Parent ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent	-15278000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	16230000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	-500000	USD
CY2020	us-gaap	Oci Before Reclassifications Net Of Tax Attributable To Parent OciBeforeReclassificationsNetOfTaxAttributableToParent	-36440000	USD
CY2020	us-gaap	Reclassification From Aoci Current Period Net Of Tax Attributable To Parent ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent	-1629000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-34811000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	-14600000	USD
CY2019	us-gaap	Oci Before Reclassifications Net Of Tax Attributable To Parent OciBeforeReclassificationsNetOfTaxAttributableToParent	3048000	USD
CY2019	us-gaap	Reclassification From Aoci Current Period Net Of Tax Attributable To Parent ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent	-868000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	3916000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	2600000	USD
CY2019	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	31275000	USD
CY2021	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	59844000	USD
CY2021Q1	us-gaap	Pension And Other Postretirement And Postemployment Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementAndPostemploymentBenefitPlansLiabilitiesNoncurrent	126054000	USD
CY2020Q1	us-gaap	Pension And Other Postretirement And Postemployment Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementAndPostemploymentBenefitPlansLiabilitiesNoncurrent	124375000	USD
CY2021Q1	us-gaap	Liability For Uncertain Tax Positions Noncurrent LiabilityForUncertainTaxPositionsNoncurrent	53203000	USD
CY2020Q1	us-gaap	Liability For Uncertain Tax Positions Noncurrent LiabilityForUncertainTaxPositionsNoncurrent	56130000	USD
CY2021Q1	us-gaap	Other Liabilities And Deferred Revenue Noncurrent OtherLiabilitiesAndDeferredRevenueNoncurrent	51727000	USD
CY2020Q1	us-gaap	Other Liabilities And Deferred Revenue Noncurrent OtherLiabilitiesAndDeferredRevenueNoncurrent	63096000	USD
CY2021Q1	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	230984000	USD
CY2020Q1	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	243601000	USD
CY2021Q1	us-gaap	Postemployment Benefits Liability Noncurrent PostemploymentBenefitsLiabilityNoncurrent	10900000	USD
CY2020Q1	us-gaap	Postemployment Benefits Liability Noncurrent PostemploymentBenefitsLiabilityNoncurrent	10700000	USD
CY2021	bah	Common Stock Votes Per Share CommonStockVotesPerShare	1	vote
CY2021Q1	us-gaap	Stock Repurchase Program Remaining Authorized Repurchase Amount1 StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1	591500000	USD
CY2021	us-gaap	Dividends Common Stock DividendsCommonStock	181066000	USD
CY2020	us-gaap	Dividends Common Stock DividendsCommonStock	146602000	USD
CY2019	us-gaap	Dividends Common Stock DividendsCommonStock	114234000	USD
CY2021	us-gaap	Dividends Dividends	181066000	USD
CY2020	us-gaap	Dividends Dividends	146602000	USD
CY2019	us-gaap	Dividends Dividends	114514000	USD
CY2021	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	59844000	USD
CY2020	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	43290000	USD
CY2020	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	43290000	USD
CY2019	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	31275000	USD
CY2021Q1	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	43300000	USD
CY2020Q1	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	33500000	USD
CY2021	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P5Y
CY2021Q1	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	43307000	USD
CY2020Q1	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	33459000	USD
CY2021Q1	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	43307000	USD
CY2021Q1	bah	Unrecognized Compensation Cost Next12 Months UnrecognizedCompensationCostNext12Months	27723000	USD
CY2021Q1	bah	Unrecognized Compensation Cost Year Two UnrecognizedCompensationCostYearTwo	13877000	USD
CY2021Q1	bah	Unrecognized Compensation Cost Year Three UnrecognizedCompensationCostYearThree	1530000	USD
CY2021Q1	bah	Unrecognized Compensation Cost Year Four UnrecognizedCompensationCostYearFour	167000	USD
CY2021Q1	bah	Unrecognized Compensation Cost Year Five UnrecognizedCompensationCostYearFive	10000	USD
CY2021	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	1	segment
CY2021	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	1	segment
CY2020Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1956453000	USD
CY2020Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2019185000	USD
CY2020Q4	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1904020000	USD
CY2021Q1	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1979280000	USD
CY2020Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	191887000	USD
CY2020Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	207221000	USD
CY2020Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	184257000	USD
CY2021Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	171006000	USD
CY2020Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	170816000	USD
CY2020Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	175400000	USD
CY2020Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	165983000	USD
CY2021Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	150240000	USD
CY2020Q2	us-gaap	Net Income Loss NetIncomeLoss	129329000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	136081000	USD
CY2020Q4	us-gaap	Net Income Loss NetIncomeLoss	144371000	USD
CY2021Q1	us-gaap	Net Income Loss NetIncomeLoss	199177000	USD
CY2020Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.93
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.98
CY2020Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.04
CY2021Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.45
CY2020Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.92
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.98
CY2020Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.03
CY2021Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.43
CY2019Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1825176000	USD
CY2019Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1819577000	USD
CY2019Q4	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1849441000	USD
CY2020Q1	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1969647000	USD
CY2019Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	179046000	USD
CY2019Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	172035000	USD
CY2019Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	169045000	USD
CY2020Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	149076000	USD
CY2019Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	155830000	USD
CY2019Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	148177000	USD
CY2019Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	146723000	USD
CY2020Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	128704000	USD
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	117386000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	114325000	USD
CY2019Q4	us-gaap	Net Income Loss NetIncomeLoss	112026000	USD
CY2020Q1	us-gaap	Net Income Loss NetIncomeLoss	138866000	USD
CY2019Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.83
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.81
CY2019Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.79
CY2020Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.99
CY2019Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.83
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.80
CY2019Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.79
CY2020Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.98

Files In Submission

Name	View Source	Status
0001443646-21-000079-index-headers.html	Edgar Link	pending
0001443646-21-000079-index.html	Edgar Link	pending
0001443646-21-000079.txt	Edgar Link	pending
0001443646-21-000079-xbrl.zip	Edgar Link	pending
bah-20210331.htm	Edgar Link	pending
bah-20210331.xsd	Edgar Link	pending
bah-2021033121xex1010.htm	Edgar Link	pending
bah-2021033121xex1010001.jpg	Edgar Link	pending
bah-2021033121xex1010002.jpg	Edgar Link	pending
bah-2021033121xex1010003.jpg	Edgar Link	pending
bah-2021033121xex1010004.jpg	Edgar Link	pending
bah-2021033121xex1010005.jpg	Edgar Link	pending
bah-2021033121xex1010006.jpg	Edgar Link	pending
bah-2021033121xex1010007.jpg	Edgar Link	pending
bah-2021033121xex1010008.jpg	Edgar Link	pending
bah-2021033121xex1010009.jpg	Edgar Link	pending
bah-2021033121xex1010010.jpg	Edgar Link	pending
bah-2021033121xex1010011.jpg	Edgar Link	pending
bah-2021033121xex1010012.jpg	Edgar Link	pending
bah-2021033121xex1010013.jpg	Edgar Link	pending
bah-2021033121xex1010014.jpg	Edgar Link	pending
bah-2021033121xex1010015.jpg	Edgar Link	pending
bah-2021033121xex1010016.jpg	Edgar Link	pending
bah-2021033121xex1010017.jpg	Edgar Link	pending
bah-2021033121xex1010018.jpg	Edgar Link	pending
bah-2021033121xex1010019.jpg	Edgar Link	pending
bah-2021033121xex1010020.jpg	Edgar Link	pending
bah-2021033121xex1010021.jpg	Edgar Link	pending
bah-2021033121xex1010022.jpg	Edgar Link	pending
bah-2021033121xex1010023.jpg	Edgar Link	pending
bah-20210331xex21.htm	Edgar Link	pending
bah-20210331xex23.htm	Edgar Link	pending
bah-20210331xex311.htm	Edgar Link	pending
bah-20210331xex312.htm	Edgar Link	pending
bah-20210331xex321.htm	Edgar Link	pending
bah-20210331xex322.htm	Edgar Link	pending
bah-20210331xex45.htm	Edgar Link	pending
bah-20210331_cal.xml	Edgar Link	unprocessable
bah-20210331_def.xml	Edgar Link	unprocessable
bah-20210331_g1.jpg	Edgar Link	pending
bah-20210331_htm.xml	Edgar Link	completed
bah-20210331_lab.xml	Edgar Link	unprocessable
bah-20210331_pre.xml	Edgar Link	unprocessable
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
R1.htm	Edgar Link	pending
R10.htm	Edgar Link	pending
R100.htm	Edgar Link	pending
R101.htm	Edgar Link	pending
R102.htm	Edgar Link	pending
R103.htm	Edgar Link	pending
R104.htm	Edgar Link	pending
R105.htm	Edgar Link	pending
R11.htm	Edgar Link	pending
R12.htm	Edgar Link	pending
R13.htm	Edgar Link	pending
R14.htm	Edgar Link	pending
R15.htm	Edgar Link	pending
R16.htm	Edgar Link	pending
R17.htm	Edgar Link	pending
R18.htm	Edgar Link	pending
R19.htm	Edgar Link	pending
R2.htm	Edgar Link	pending
R20.htm	Edgar Link	pending
R21.htm	Edgar Link	pending
R22.htm	Edgar Link	pending
R23.htm	Edgar Link	pending
R24.htm	Edgar Link	pending
R25.htm	Edgar Link	pending
R26.htm	Edgar Link	pending
R27.htm	Edgar Link	pending
R28.htm	Edgar Link	pending
R29.htm	Edgar Link	pending
R3.htm	Edgar Link	pending
R30.htm	Edgar Link	pending
R31.htm	Edgar Link	pending
R32.htm	Edgar Link	pending
R33.htm	Edgar Link	pending
R34.htm	Edgar Link	pending
R35.htm	Edgar Link	pending
R36.htm	Edgar Link	pending
R37.htm	Edgar Link	pending
R38.htm	Edgar Link	pending
R39.htm	Edgar Link	pending
R4.htm	Edgar Link	pending
R40.htm	Edgar Link	pending
R41.htm	Edgar Link	pending
R42.htm	Edgar Link	pending
R43.htm	Edgar Link	pending
R44.htm	Edgar Link	pending
R45.htm	Edgar Link	pending
R46.htm	Edgar Link	pending
R47.htm	Edgar Link	pending
R48.htm	Edgar Link	pending
R49.htm	Edgar Link	pending
R5.htm	Edgar Link	pending
R50.htm	Edgar Link	pending
R51.htm	Edgar Link	pending
R52.htm	Edgar Link	pending
R53.htm	Edgar Link	pending
R54.htm	Edgar Link	pending
R55.htm	Edgar Link	pending
R56.htm	Edgar Link	pending
R57.htm	Edgar Link	pending
R58.htm	Edgar Link	pending
R59.htm	Edgar Link	pending
R6.htm	Edgar Link	pending
R60.htm	Edgar Link	pending
R61.htm	Edgar Link	pending
R62.htm	Edgar Link	pending
R63.htm	Edgar Link	pending
R64.htm	Edgar Link	pending
R65.htm	Edgar Link	pending
R66.htm	Edgar Link	pending
R67.htm	Edgar Link	pending
R68.htm	Edgar Link	pending
R69.htm	Edgar Link	pending
R7.htm	Edgar Link	pending
R70.htm	Edgar Link	pending
R71.htm	Edgar Link	pending
R72.htm	Edgar Link	pending
R73.htm	Edgar Link	pending
R74.htm	Edgar Link	pending
R75.htm	Edgar Link	pending
R76.htm	Edgar Link	pending
R77.htm	Edgar Link	pending
R78.htm	Edgar Link	pending
R79.htm	Edgar Link	pending
R8.htm	Edgar Link	pending
R80.htm	Edgar Link	pending
R81.htm	Edgar Link	pending
R82.htm	Edgar Link	pending
R83.htm	Edgar Link	pending
R84.htm	Edgar Link	pending
R85.htm	Edgar Link	pending
R86.htm	Edgar Link	pending
R87.htm	Edgar Link	pending
R88.htm	Edgar Link	pending
R89.htm	Edgar Link	pending
R9.htm	Edgar Link	pending
R90.htm	Edgar Link	pending
R91.htm	Edgar Link	pending
R92.htm	Edgar Link	pending
R93.htm	Edgar Link	pending
R94.htm	Edgar Link	pending
R95.htm	Edgar Link	pending
R96.htm	Edgar Link	pending
R97.htm	Edgar Link	pending
R98.htm	Edgar Link	pending
R99.htm	Edgar Link	pending
report.css	Edgar Link	pending
Show.js	Edgar Link	pending

Create your account

Find Stocks Worth Researching

Deeply Understand Businesses

Value Businesses Intelligently

$BAH
Booz Allen Hamilton Holding Corp Stock $bah

2021 Q2 Form 10-K Financial Statement

#000144364621000079 Filed on May 21, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$BAH Booz Allen Hamilton Holding Corp Stock $bah

2021 Q2 Form 10-K Financial Statement

#000144364621000079 Filed on May 21, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$BAH
Booz Allen Hamilton Holding Corp Stock $bah