$BLKB
BLACKBAUD INC Stock $blkb

$blkb Overview Financials Valuation SEC Filings Company Website

2024 Q1 Form 10-K Financial Statement

#000128005824000013 Filed on February 21, 2024

Income Statement

Concept	2024 Q1	2023 Q4	2023
Revenue	$279.3M	$295.0M	$1.105B
YoY Change	6.68%	7.37%	4.47%
Cost Of Revenue	$126.2M	$135.8M	$502.2M
YoY Change	2.51%	0.26%	-0.63%
Gross Profit	$153.0M	$159.2M	$603.2M
YoY Change	10.39%	14.29%	9.14%
Gross Profit Margin	54.81%	53.96%	54.57%
Selling, General & Admin	$98.62M	$87.48M	$402.1M
YoY Change	-8.02%	-23.92%	-4.57%
% of Gross Profit	64.44%	54.96%	66.66%
Research & Development	$42.80M	$38.60M	$153.3M
YoY Change	5.45%	1.11%	-2.3%
% of Gross Profit	27.97%	24.25%	25.41%
Depreciation & Amortization	$30.10M	$27.89M	$13.00M
YoY Change	10.35%	8.24%	-7.8%
% of Gross Profit	19.66%	17.52%	2.16%
Operating Expenses	$142.3M	$126.9M	$558.5M
YoY Change	-4.22%	-17.53%	-3.9%
Operating Profit	$10.72M	$32.31M	$44.71M
YoY Change	-207.76%	-322.12%	-256.94%
Interest Expense	$10.28M	-$8.473M	$39.92M
YoY Change	-3.62%	-17.43%	11.5%
% of Operating Profit	95.87%	-26.22%	89.3%
Other Income/Expense, Net	$1.016M	$2.414M	$4.076M
YoY Change	0.0%	543.73%	74.79%
Pretax Income	$3.790M	$26.26M	$17.64M
YoY Change	-120.37%	-203.23%	-131.75%
Income Tax	-$1.456M	$20.86M	$15.82M
% Of Pretax Income	-38.42%	79.44%	89.68%
Net Earnings	$5.246M	$5.399M	$1.820M
YoY Change	-135.68%	-125.4%	-104.01%
Net Earnings / Revenue	1.88%	1.83%	0.16%
Basic Earnings Per Share	$0.10		$0.03
Diluted Earnings Per Share	$0.10	$0.10	$0.03
COMMON SHARES
Basic Shares Outstanding	53.48M shares	53.85M shares	52.55M shares
Diluted Shares Outstanding	53.41M shares		53.72M shares

Balance Sheet

Concept	2024 Q1	2023 Q4	2023
SHORT-TERM ASSETS
Cash & Short-Term Investments	$26.38M	$31.25M	$31.25M
YoY Change	9.52%	-1.39%	-1.39%
Cash & Equivalents	$26.38M	$31.25M	$31.25M
Short-Term Investments
Other Short-Term Assets	$441.2M	$796.3M	$796.3M
YoY Change	-2.56%	2.58%	2.58%
Inventory
Prepaid Expenses
Receivables	$96.10M	$101.9M	$101.9M
Other Receivables	$6.936M	$353.0K	$353.0K
Total Short-Term Assets	$577.1M	$929.8M	$929.8M
YoY Change	-0.39%	1.21%	1.21%
LONG-TERM ASSETS
Property, Plant & Equipment	$96.07M	$98.69M	$295.8M
YoY Change	-8.77%	-8.13%	0.5%
Goodwill	$1.053B	$1.054B
YoY Change	0.14%	0.33%
Intangibles	$565.0M	$581.9M
YoY Change	-9.2%	-8.38%
Long-Term Investments		$0.00
YoY Change
Other Assets	$59.88M	$51.04M	$51.04M
YoY Change	-31.91%	-45.88%	-45.88%
Total Long-Term Assets	$1.972B	$1.983B	$1.983B
YoY Change	-4.27%	-4.41%	-4.41%
TOTAL ASSETS
Total Short-Term Assets	$577.1M	$929.8M	$929.8M
Total Long-Term Assets	$1.972B	$1.983B	$1.983B
Total Assets	$2.549B	$2.912B	$2.912B
YoY Change	-3.42%	-2.69%	-2.69%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$48.86M	$25.18M	$25.18M
YoY Change	5.02%	-40.83%	-40.83%
Accrued Expenses	$25.40M	$64.32M	$64.32M
YoY Change	-65.11%	20.22%	20.22%
Deferred Revenue	$360.4M	$392.5M
YoY Change	-0.18%	2.64%
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$19.30M	$19.26M	$19.26M
YoY Change	0.87%	2.43%	2.43%
Total Short-Term Liabilities	$862.6M	$1.197B	$1.197B
YoY Change	-0.14%	-2.72%	-2.72%
LONG-TERM LIABILITIES
Long-Term Debt	$1.021B	$760.4M	$760.4M
YoY Change	18.82%	-9.5%	-9.5%
Other Long-Term Liabilities	$4.163M	$10.26M	$52.74M
YoY Change	-68.54%	138.89%	1.37%
Total Long-Term Liabilities	$1.025B	$770.7M	$813.1M
YoY Change	17.49%	-8.75%	-8.87%
TOTAL LIABILITIES
Total Short-Term Liabilities	$862.6M	$1.197B	$1.197B
Total Long-Term Liabilities	$1.025B	$770.7M	$813.1M
Total Liabilities	$2.015B	$2.104B	$2.104B
YoY Change	4.97%	-6.45%	-6.45%
SHAREHOLDERS EQUITY
Retained Earnings	$204.1M	$198.9M
YoY Change	11.94%	0.92%
Common Stock	$1.184B	$1.203B
YoY Change	7.16%	11.88%
Preferred Stock
YoY Change
Treasury Stock (at cost)		$591.6M
YoY Change		10.1%
Treasury Stock Shares
Shareholders Equity	$534.1M	$808.7M	$808.7M
YoY Change
Total Liabilities & Shareholders Equity	$2.549B	$2.912B	$2.912B
YoY Change	-3.42%	-2.69%	-2.69%

Cashflow Statement

Concept	2024 Q1	2023 Q4	2023
OPERATING ACTIVITIES
Net Income	$5.246M	$5.399M	$1.820M
YoY Change	-135.68%	-125.4%	-104.01%
Depreciation, Depletion And Amortization	$30.10M	$27.89M	$13.00M
YoY Change	10.35%	8.24%	-7.8%
Cash From Operating Activities	$64.62M	-$3.366M	$199.6M
YoY Change	196.34%	-123.89%	-2.09%
INVESTING ACTIVITIES
Capital Expenditures	$261.0K	$15.23M	$4.685M
YoY Change	-80.87%	-14.42%	-61.88%
Acquisitions			$13.00K
YoY Change			-99.94%
Other Investing Activities	-$1.179M	$37.00K	$250.0K
YoY Change		12.12%	-101.73%
Cash From Investing Activities	-$14.51M	-$15.19M	-$64.39M
YoY Change	-5.36%	-14.47%	-24.73%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net			$18.83M
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-$394.6M	353.7M	-$143.0M
YoY Change	11.72%	-1.33%	456.52%
NET CHANGE
Cash From Operating Activities	$64.62M	-3.366M	$199.6M
Cash From Investing Activities	-$14.51M	-15.19M	-$64.39M
Cash From Financing Activities	-$394.6M	353.7M	-$143.0M
Net Change In Cash	-$345.4M	335.2M	-$5.674M
YoY Change	-0.11%	-5.54%	-106.91%
FREE CASH FLOW
Cash From Operating Activities	$64.62M	-$3.366M	$199.6M
Capital Expenditures	$261.0K	$15.23M	$4.685M
Free Cash Flow	$64.36M	-$18.59M	$194.9M
YoY Change	214.83%	401.59%	1.75%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2023	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	17644000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-10168000	usd
CY2021	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-10490000	usd
CY2022	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	7340000	usd
CY2023	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-16851000	usd
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	426150000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	2416000	usd
CY2023	dei	Amendment Flag AmendmentFlag	false
CY2023	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2023
CY2023	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2023	dei	Entity Central Index Key EntityCentralIndexKey	0001280058
CY2023	blkb	Contract Term Of Recurring Revenue Contracts At Renewal Years ContractTermOfRecurringRevenueContractsAtRenewalYears	P3Y
CY2023Q4	us-gaap	Derivative Asset Statement Of Financial Position Extensible Enumeration DerivativeAssetStatementOfFinancialPositionExtensibleEnumeration	http://fasb.org/us-gaap/2023#OtherAssetsNoncurrent
CY2022Q4	us-gaap	Derivative Liability Statement Of Financial Position Extensible Enumeration DerivativeLiabilityStatementOfFinancialPositionExtensibleEnumeration	http://fasb.org/us-gaap/2023#OtherLiabilitiesNoncurrent
CY2023Q4	us-gaap	Derivative Liability Statement Of Financial Position Extensible Enumeration DerivativeLiabilityStatementOfFinancialPositionExtensibleEnumeration	http://fasb.org/us-gaap/2023#OtherLiabilitiesNoncurrent
CY2021	us-gaap	Impairment Long Lived Asset Held For Use Statement Of Income Or Comprehensive Income Extensible Enumeration ImpairmentLongLivedAssetHeldForUseStatementOfIncomeOrComprehensiveIncomeExtensibleEnumeration	http://fasb.org/us-gaap/2023#GeneralAndAdministrativeExpense
CY2022Q4	us-gaap	Operating Lease Liability Current Statement Of Financial Position Extensible List OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	http://www.blackbaud.com/20231231#AccruedExpensesAndOtherCurrentLiabilities
CY2023Q4	us-gaap	Operating Lease Liability Current Statement Of Financial Position Extensible List OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	http://www.blackbaud.com/20231231#AccruedExpensesAndOtherCurrentLiabilities
CY2022Q4	us-gaap	Derivative Liability Noncurrent Statement Of Financial Position Extensible Enumeration DerivativeLiabilityNoncurrentStatementOfFinancialPositionExtensibleEnumeration	http://www.blackbaud.com/20231231#AccruedExpensesAndOtherCurrentLiabilities
CY2023Q4	us-gaap	Derivative Liability Noncurrent Statement Of Financial Position Extensible Enumeration DerivativeLiabilityNoncurrentStatementOfFinancialPositionExtensibleEnumeration	http://fasb.org/us-gaap/2023#OtherLiabilitiesNoncurrent http://www.blackbaud.com/20231231#AccruedExpensesAndOtherCurrentLiabilities
CY2022Q4	us-gaap	Derivative Liability Noncurrent Statement Of Financial Position Extensible Enumeration DerivativeLiabilityNoncurrentStatementOfFinancialPositionExtensibleEnumeration	http://www.blackbaud.com/20231231#AccruedExpensesAndOtherCurrentLiabilities
CY2023Q4	us-gaap	Supplier Finance Program Obligation Statement Of Financial Position Extensible Enumeration SupplierFinanceProgramObligationStatementOfFinancialPositionExtensibleEnumeration	http://fasb.org/us-gaap/2023#LongTermDebtCurrent http://fasb.org/us-gaap/2023#LongTermDebtNoncurrent
CY2022Q4	us-gaap	Supplier Finance Program Obligation Statement Of Financial Position Extensible Enumeration SupplierFinanceProgramObligationStatementOfFinancialPositionExtensibleEnumeration	http://fasb.org/us-gaap/2023#LongTermDebtCurrent http://fasb.org/us-gaap/2023#LongTermDebtNoncurrent
CY2023Q4	us-gaap	Derivative Asset Current Statement Of Financial Position Extensible Enumeration DerivativeAssetCurrentStatementOfFinancialPositionExtensibleEnumeration	http://fasb.org/us-gaap/2023#PrepaidExpenseAndOtherAssetsCurrent
CY2022Q4	us-gaap	Derivative Asset Current Statement Of Financial Position Extensible Enumeration DerivativeAssetCurrentStatementOfFinancialPositionExtensibleEnumeration	http://fasb.org/us-gaap/2023#PrepaidExpenseAndOtherAssetsCurrent
CY2022Q4	us-gaap	Derivative Asset Noncurrent Statement Of Financial Position Extensible Enumeration DerivativeAssetNoncurrentStatementOfFinancialPositionExtensibleEnumeration	http://fasb.org/us-gaap/2023#OtherAssetsNoncurrent
CY2022Q4	us-gaap	Derivative Asset Noncurrent Statement Of Financial Position Extensible Enumeration DerivativeAssetNoncurrentStatementOfFinancialPositionExtensibleEnumeration	http://fasb.org/us-gaap/2023#OtherAssetsNoncurrent
CY2021	us-gaap	Derivative Instrument Gain Loss Reclassified From Aoci Into Income Effective Portion Statement Of Income Or Comprehensive Income Extensible Enumeration DerivativeInstrumentGainLossReclassifiedFromAociIntoIncomeEffectivePortionStatementOfIncomeOrComprehensiveIncomeExtensibleEnumeration	http://fasb.org/us-gaap/2023#InterestExpense
CY2023	us-gaap	Derivative Instrument Gain Loss Reclassified From Aoci Into Income Effective Portion Statement Of Income Or Comprehensive Income Extensible Enumeration DerivativeInstrumentGainLossReclassifiedFromAociIntoIncomeEffectivePortionStatementOfIncomeOrComprehensiveIncomeExtensibleEnumeration	http://fasb.org/us-gaap/2023#InterestExpense http://fasb.org/us-gaap/2023#RevenueFromContractWithCustomerExcludingAssessedTax
CY2022	us-gaap	Derivative Instrument Gain Loss Reclassified From Aoci Into Income Effective Portion Statement Of Income Or Comprehensive Income Extensible Enumeration DerivativeInstrumentGainLossReclassifiedFromAociIntoIncomeEffectivePortionStatementOfIncomeOrComprehensiveIncomeExtensibleEnumeration	http://fasb.org/us-gaap/2023#InterestExpense http://fasb.org/us-gaap/2023#RevenueFromContractWithCustomerExcludingAssessedTax
CY2023	dei	Document Annual Report DocumentAnnualReport	true
CY2023	dei	Document Period End Date DocumentPeriodEndDate	2023-12-31
CY2023	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2023	dei	Document Transition Report DocumentTransitionReport	false
CY2023	dei	Entity File Number EntityFileNumber	000-50600
CY2023	dei	Entity Registrant Name EntityRegistrantName	Blackbaud, Inc.
CY2023	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2023	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	11-2617163
CY2023	dei	Entity Address Address Line1 EntityAddressAddressLine1	65 Fairchild Street
CY2023	dei	Entity Address City Or Town EntityAddressCityOrTown	Charleston
CY2023	dei	Entity Address State Or Province EntityAddressStateOrProvince	SC
CY2023	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	29492
CY2023	dei	City Area Code CityAreaCode	843
CY2023	dei	Local Phone Number LocalPhoneNumber	216-6200
CY2023	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2023	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2023	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2023	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2023	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2023	dei	Entity Small Business EntitySmallBusiness	false
CY2023	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2023	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2023	dei	Document Fin Stmt Error Correction Flag DocumentFinStmtErrorCorrectionFlag	false
CY2023	dei	Entity Shell Company EntityShellCompany	false
CY2023Q2	dei	Entity Public Float EntityPublicFloat	2292286984	usd
CY2024Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	53475414	shares
CY2023	dei	Auditor Firm AuditorFirmId	42
CY2022	dei	Auditor Firm AuditorFirmId	238
CY2023	dei	Auditor Name AuditorName	Ernst & Young LLP
CY2023	dei	Auditor Location AuditorLocation	Raleigh, North Carolina
CY2023	dei	Auditor Name AuditorName	Ernst & Young LLP
CY2023	dei	Auditor Location AuditorLocation	Raleigh, North Carolina
CY2022	dei	Auditor Name AuditorName	PricewaterhouseCoopers LLP
CY2022	dei	Auditor Location AuditorLocation	Atlanta, Georgia
CY2023Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	31251000	usd
CY2022Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	31691000	usd
CY2023Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	697006000	usd
CY2022Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	702240000	usd
CY2023Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	6907000	usd
CY2022Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	7318000	usd
CY2023Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	101862000	usd
CY2022Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	102809000	usd
CY2023Q4	us-gaap	Other Restricted Assets Current OtherRestrictedAssetsCurrent	353000	usd
CY2022Q4	us-gaap	Other Restricted Assets Current OtherRestrictedAssetsCurrent	249000	usd
CY2023Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	99285000	usd
CY2022Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	81654000	usd
CY2023Q4	us-gaap	Assets Current AssetsCurrent	929757000	usd
CY2022Q4	us-gaap	Assets Current AssetsCurrent	918643000	usd
CY2023Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	98689000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	107426000	usd
CY2023Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	36927000	usd
CY2022Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	45899000	usd
CY2023Q4	us-gaap	Capitalized Software Development Costs For Software Sold To Customers CapitalizedSoftwareDevelopmentCostsForSoftwareSoldToCustomers	160194000	usd
CY2022Q4	us-gaap	Capitalized Software Development Costs For Software Sold To Customers CapitalizedSoftwareDevelopmentCostsForSoftwareSoldToCustomers	141023000	usd
CY2023Q4	us-gaap	Goodwill Goodwill	1053738000	usd
CY2022Q4	us-gaap	Goodwill Goodwill	1050272000	usd
CY2023Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	581937000	usd
CY2022Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	635136000	usd
CY2023Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	51037000	usd
CY2022Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	94304000	usd
CY2023Q4	us-gaap	Assets Assets	2912279000	usd
CY2022Q4	us-gaap	Assets Assets	2992703000	usd
CY2023Q4	us-gaap	Accounts Payable Trade Current AccountsPayableTradeCurrent	25184000	usd
CY2022Q4	us-gaap	Accounts Payable Trade Current AccountsPayableTradeCurrent	42559000	usd
CY2023Q4	blkb	Accrued Expenses And Other Current Liabilities AccruedExpensesAndOtherCurrentLiabilities	64322000	usd
CY2022Q4	blkb	Accrued Expenses And Other Current Liabilities AccruedExpensesAndOtherCurrentLiabilities	86002000	usd
CY2023Q4	blkb	Due To Customers Current DueToCustomersCurrent	695842000	usd
CY2022Q4	blkb	Due To Customers Current DueToCustomersCurrent	700860000	usd
CY2023Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	19259000	usd
CY2022Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	18802000	usd
CY2023Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	392530000	usd
CY2022Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	382419000	usd
CY2023Q4	us-gaap	Liabilities Current LiabilitiesCurrent	1197137000	usd
CY2022Q4	us-gaap	Liabilities Current LiabilitiesCurrent	1230642000	usd
CY2023Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	760405000	usd
CY2022Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	840241000	usd
CY2023Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	93292000	usd
CY2022Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	125759000	usd
CY2023Q4	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	2397000	usd
CY2022Q4	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	2817000	usd
CY2023Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	40085000	usd
CY2022Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	44918000	usd
CY2023Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	10258000	usd
CY2022Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	4294000	usd
CY2023Q4	us-gaap	Liabilities Liabilities	2103574000	usd
CY2022Q4	us-gaap	Liabilities Liabilities	2248671000	usd
CY2023Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2022Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	20000000	shares
CY2023Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	20000000	shares
CY2022Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2023Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2023Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	usd
CY2022Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	usd
CY2022Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.001
CY2023Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.001
CY2022Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	180000000	shares
CY2023Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	180000000	shares
CY2023Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	69188304	shares
CY2022Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	67814044	shares
CY2023Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	53625440	shares
CY2022Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	53068814	shares
CY2023Q4	us-gaap	Common Stock Value CommonStockValue	69000	usd
CY2022Q4	us-gaap	Common Stock Value CommonStockValue	68000	usd
CY2023Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	1203012000	usd
CY2022Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	1075264000	usd
CY2023Q4	us-gaap	Treasury Stock Common Shares TreasuryStockCommonShares	15562864	shares
CY2022Q4	us-gaap	Treasury Stock Common Shares TreasuryStockCommonShares	14745230	shares
CY2023Q4	us-gaap	Treasury Stock Value TreasuryStockValue	591557000	usd
CY2022Q4	us-gaap	Treasury Stock Value TreasuryStockValue	537287000	usd
CY2023Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-1688000	usd
CY2022Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	8938000	usd
CY2023Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	198869000	usd
CY2022Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	197049000	usd
CY2023Q4	us-gaap	Stockholders Equity StockholdersEquity	808705000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	744032000	usd
CY2023Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	2912279000	usd
CY2022Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	2992703000	usd
CY2023	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1105432000	usd
CY2022	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1058105000	usd
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	927740000	usd
CY2023	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	502188000	usd
CY2022	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	505389000	usd
CY2021	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	443195000	usd
CY2023	us-gaap	Gross Profit GrossProfit	603244000	usd
CY2022	us-gaap	Gross Profit GrossProfit	552716000	usd
CY2021	us-gaap	Gross Profit GrossProfit	484545000	usd
CY2023	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	212158000	usd
CY2022	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	221455000	usd
CY2021	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	186314000	usd
CY2023	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	153304000	usd
CY2022	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	156913000	usd
CY2021	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	124573000	usd
CY2023	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	189938000	usd
CY2022	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	199908000	usd
CY2021	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	146262000	usd
CY2023	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	3139000	usd
CY2022	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2925000	usd
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2227000	usd
CY2023	us-gaap	Restructuring Charges RestructuringCharges	0	usd
CY2022	us-gaap	Restructuring Charges RestructuringCharges	0	usd
CY2021	us-gaap	Restructuring Charges RestructuringCharges	263000	usd
CY2023	us-gaap	Operating Expenses OperatingExpenses	558539000	usd
CY2022	us-gaap	Operating Expenses OperatingExpenses	581201000	usd
CY2021	us-gaap	Operating Expenses OperatingExpenses	459639000	usd
CY2023	us-gaap	Operating Income Loss OperatingIncomeLoss	44705000	usd
CY2022	us-gaap	Operating Income Loss OperatingIncomeLoss	-28485000	usd
CY2021	us-gaap	Operating Income Loss OperatingIncomeLoss	24906000	usd
CY2023	us-gaap	Interest Expense InterestExpense	39922000	usd
CY2022	us-gaap	Interest Expense InterestExpense	35803000	usd
CY2021	us-gaap	Interest Expense InterestExpense	18003000	usd
CY2023	blkb	Nonoperating Income Expense Excluding Interest Expense NonoperatingIncomeExpenseExcludingInterestExpense	12861000	usd
CY2022	blkb	Nonoperating Income Expense Excluding Interest Expense NonoperatingIncomeExpenseExcludingInterestExpense	8713000	usd
CY2021	blkb	Nonoperating Income Expense Excluding Interest Expense NonoperatingIncomeExpenseExcludingInterestExpense	180000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-55575000	usd
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	7083000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1385000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	5698000	usd
CY2023	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	52546406	shares
CY2023	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	53721342	shares
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	51569148	shares
CY2023	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	5049000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-16160000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	661000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent	-15675000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent	18576000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent	8358000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-10626000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	2416000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	9019000	usd
CY2023	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-8806000	usd
CY2022	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-42991000	usd
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	14717000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	1820000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	-45407000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	5698000	usd
CY2023	us-gaap	Depreciation And Amortization DepreciationAndAmortization	109487000	usd
CY2022	us-gaap	Depreciation And Amortization DepreciationAndAmortization	102369000	usd
CY2021	us-gaap	Depreciation And Amortization DepreciationAndAmortization	82410000	usd
CY2023	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	4500000	usd
CY2022	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	6066000	usd
CY2021	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	11450000	usd
CY2023	us-gaap	Share Based Compensation ShareBasedCompensation	127762000	usd
CY2022	us-gaap	Share Based Compensation ShareBasedCompensation	110294000	usd
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	120379000	usd
CY2023	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-24368000	usd
CY2022	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-26644000	usd
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-2429000	usd
CY2023	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	1775000	usd
CY2022	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	2364000	usd
CY2023	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-5023000	usd
CY2022	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-5676000	usd
CY2023	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	3237000	usd
CY2021	us-gaap	Increase Decrease In Accounts Payable Trade IncreaseDecreaseInAccountsPayableTrade	-9670000	usd
CY2022	blkb	Increase Decrease Accrued Expenses And Other Liabilities IncreaseDecreaseAccruedExpensesAndOtherLiabilities	-2386000	usd
CY2021	blkb	Increase Decrease Accrued Expenses And Other Liabilities IncreaseDecreaseAccruedExpensesAndOtherLiabilities	-8190000	usd
CY2023	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	8872000	usd
CY2022	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	11059000	usd
CY2021	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	10526000	usd
CY2023	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	199634000	usd
CY2022	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	203893000	usd
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	213661000	usd
CY2023	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	4685000	usd
CY2022	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	12289000	usd
CY2021	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	11664000	usd
CY2023	us-gaap	Payments To Develop Software PaymentsToDevelopSoftware	59443000	usd
CY2022	us-gaap	Payments To Develop Software PaymentsToDevelopSoftware	58774000	usd
CY2021	us-gaap	Payments To Develop Software PaymentsToDevelopSoftware	40489000	usd
CY2023	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	13000	usd
CY2022	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	20912000	usd
CY2021	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	419120000	usd
CY2023	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	0	usd
CY2022	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	6426000	usd
CY2021	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	0	usd
CY2023	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	250000	usd
CY2022	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	0	usd
CY2021	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	0	usd
CY2023	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-64391000	usd
CY2022	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-85549000	usd
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-471273000	usd
CY2023	us-gaap	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	293200000	usd
CY2022	us-gaap	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	211000000	usd
CY2021	us-gaap	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	582200000	usd
CY2023	us-gaap	Repayments Of Debt RepaymentsOfDebt	374595000	usd
CY2022	us-gaap	Repayments Of Debt RepaymentsOfDebt	310740000	usd
CY2021	us-gaap	Repayments Of Debt RepaymentsOfDebt	152971000	usd
CY2023	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	0	usd
CY2022	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	0	usd
CY2021	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	3106000	usd
CY2023	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	0	usd
CY2022	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	1339000	usd
CY2021	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	0	usd
CY2023	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	35867000	usd
CY2022	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	36376000	usd
CY2021	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	39404000	usd
CY2023	blkb	Increase Decrease In Due To Customers IncreaseDecreaseInDueToCustomers	6812000	usd
CY2022	blkb	Increase Decrease In Due To Customers IncreaseDecreaseInDueToCustomers	-111386000	usd
CY2021	blkb	Increase Decrease In Due To Customers IncreaseDecreaseInDueToCustomers	13464000	usd
CY2023	blkb	Change In Customer Funds Receivable ChangeInCustomerFundsReceivable	-60000	usd
CY2022	blkb	Change In Customer Funds Receivable ChangeInCustomerFundsReceivable	380000	usd
CY2021	blkb	Change In Customer Funds Receivable ChangeInCustomerFundsReceivable	-731000	usd
CY2023	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	18831000	usd
CY2022	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	usd
CY2021	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	108416000	usd
CY2023	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-142965000	usd
CY2022	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-25689000	usd
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	264108000	usd
CY2023	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	2048000	usd
CY2022	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	-10486000	usd
CY2021	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	297000	usd
CY2023	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-5674000	usd
CY2022	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	82169000	usd
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	6793000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	733931000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	651762000	usd
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	644969000	usd
CY2023Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	728257000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	733931000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	651762000	usd
CY2023	us-gaap	Interest Paid Net InterestPaidNet	38052000	usd
CY2022	us-gaap	Interest Paid Net InterestPaidNet	33371000	usd
CY2021	us-gaap	Interest Paid Net InterestPaidNet	16386000	usd
CY2023	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	35619000	usd
CY2022	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	9670000	usd
CY2021	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	10073000	usd
CY2023	us-gaap	Stock Issued1 StockIssued1	0	usd
CY2022	us-gaap	Stock Issued1 StockIssued1	0	usd
CY2021	us-gaap	Stock Issued1 StockIssued1	303633000	usd
CY2023	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	837000	usd
CY2022	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	158000	usd
CY2021	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	1747000	usd
CY2023Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	31251000	usd
CY2022Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	31691000	usd
CY2023Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	697006000	usd
CY2022Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	702240000	usd
CY2023Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	728257000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	733931000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	5698000	usd
CY2021	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	303633000	usd
CY2021	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	108416000	usd
CY2021	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	1000	usd
CY2021	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	39404000	usd
CY2021	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	120379000	usd
CY2021	us-gaap	Stock Issued During Period Value Restricted Stock Award Gross StockIssuedDuringPeriodValueRestrictedStockAwardGross	0	usd
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	9019000	usd
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	717060000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	-45407000	usd
CY2022	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	1352000	usd
CY2022	blkb	Adjustments To Additional Paid In Capital Stock Issued Retirements AdjustmentsToAdditionalPaidInCapitalStockIssuedRetirements	2605000	usd
CY2022	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	0	usd
CY2022	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	36376000	usd
CY2022	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	110294000	usd
CY2022	us-gaap	Stock Issued During Period Value Restricted Stock Award Gross StockIssuedDuringPeriodValueRestrictedStockAwardGross	2000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	744032000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	1820000	usd
CY2023	blkb	Adjustments To Additional Paid In Capital Stock Issued Retirements AdjustmentsToAdditionalPaidInCapitalStockIssuedRetirements	14000	usd
CY2023	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	18831000	usd
CY2023	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	0	usd
CY2023	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	35439000	usd
CY2023	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	127762000	usd
CY2023	us-gaap	Stock Issued During Period Value Restricted Stock Award Gross StockIssuedDuringPeriodValueRestrictedStockAwardGross	1000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-10626000	usd
CY2023Q4	us-gaap	Stockholders Equity StockholdersEquity	808705000	usd
CY2023	us-gaap	Use Of Estimates UseOfEstimates	<div style="margin-top:9pt;text-align:justify"><span style="color:#51555c;font-family:'Calibri',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Use of estimates</span></div><div style="margin-top:9pt;text-align:justify"><span style="color:#51555c;font-family:'Calibri',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements, as well as the reported amounts of revenues and expenses during the reporting periods. On an ongoing basis, we reconsider and evaluate our estimates and assumptions, including those that impact revenue recognition, long-lived and intangible assets, income taxes, business combinations, stock-based compensation, capitalization of software development costs, our allowances for credit losses and sales returns, costs of obtaining contracts, valuation of derivative instruments, loss contingencies and insurance recoveries, among others. Changes in the facts or circumstances underlying these estimates could result in material changes and actual results could materially differ from these estimates.</span></div>
CY2023	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<div style="margin-top:9pt;text-align:justify"><span style="color:#51555c;font-family:'Calibri',sans-serif;font-size:10pt;font-weight:400;line-height:120%;text-decoration:underline">Concentration of credit risk</span></div>Financial instruments that potentially subject us to concentrations of credit risk consist of cash and cash equivalents, restricted cash due to customers and accounts receivable. Our cash and cash equivalents and restricted cash due to customers are placed with high credit-quality financial institutions. Our accounts receivable is derived from sales to customers. With respect to accounts receivable, we perform ongoing evaluations of our customers and maintain an allowance for credit losses based on historical experience and our expectations of future credit losses.
CY2023	blkb	Contract Term Of Recurring Revenue Contracts At Contract Inception Years ContractTermOfRecurringRevenueContractsAtContractInceptionYears	P3Y
CY2023Q4	us-gaap	Real Estate Inventory Capitalized Interest Costs RealEstateInventoryCapitalizedInterestCosts	0	usd
CY2022Q4	us-gaap	Real Estate Inventory Capitalized Interest Costs RealEstateInventoryCapitalizedInterestCosts	0	usd
CY2023	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	1	segment
CY2023	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	1	segment
CY2023	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	1	segment
CY2023	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	usd
CY2021	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	usd
CY2022	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	usd
CY2022	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	4600000	usd
CY2021	us-gaap	Impairment Of Intangible Assets Excluding Goodwill ImpairmentOfIntangibleAssetsExcludingGoodwill	0	usd
CY2023	us-gaap	Impairment Of Intangible Assets Excluding Goodwill ImpairmentOfIntangibleAssetsExcludingGoodwill	0	usd
CY2021	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-1600000	usd
CY2021	us-gaap	Other Asset Impairment Charges OtherAssetImpairmentCharges	0	usd
CY2023	us-gaap	Other Asset Impairment Charges OtherAssetImpairmentCharges	0	usd
CY2023	us-gaap	Advertising Expense AdvertisingExpense	14000000	usd
CY2022	us-gaap	Advertising Expense AdvertisingExpense	16500000	usd
CY2021	us-gaap	Advertising Expense AdvertisingExpense	7100000	usd
CY2023	us-gaap	Adjustment For Amortization AdjustmentForAmortization	55602000	usd
CY2022	us-gaap	Adjustment For Amortization AdjustmentForAmortization	51417000	usd
CY2021	us-gaap	Adjustment For Amortization AdjustmentForAmortization	37039000	usd
CY2022Q3	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	6400000	usd
CY2022	us-gaap	Impairment Of Intangible Assets Excluding Goodwill ImpairmentOfIntangibleAssetsExcludingGoodwill	2000000	usd
CY2022Q3	us-gaap	Business Combination Contingent Consideration Liability Noncurrent BusinessCombinationContingentConsiderationLiabilityNoncurrent	1400000	usd
CY2022Q4	us-gaap	Goodwill Goodwill	1050272000	usd
CY2023	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	3430000	usd
CY2023Q4	us-gaap	Goodwill Goodwill	1053738000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	842268000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	839015000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	260331000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	203879000	usd
CY2023Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	581937000	usd
CY2022Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	635136000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	62332000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	65873000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	64234000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	60038000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	52544000	usd
CY2023Q4	blkb	Estimated Amortization Expensefor Finite Lived Intangible Assetsforthe Next Five Years EstimatedAmortizationExpenseforFiniteLivedIntangibleAssetsfortheNextFiveYears	305021000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	1820000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	-45407000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	5698000	usd
CY2023	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	52546406	shares
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	51569148	shares
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	47412306	shares
CY2023	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	1174936	shares
CY2022	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	0	shares
CY2021	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	818132	shares
CY2023	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	53721342	shares
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	51569148	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	48230438	shares
CY2023	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.03
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.88
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.12
CY2023	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.03
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.88
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.12
CY2023	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	45614	shares
CY2022	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	1046307	shares
CY2021	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	974110	shares
CY2023	us-gaap	Operating Lease Impairment Loss OperatingLeaseImpairmentLoss	5600000	usd
CY2023	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	1100000	usd
CY2022	us-gaap	Capitalized Computer Software Impairments1 CapitalizedComputerSoftwareImpairments1	2300000	usd
CY2022	us-gaap	Impairment Of Intangible Assets Excluding Goodwill ImpairmentOfIntangibleAssetsExcludingGoodwill	2000000	usd
CY2022	us-gaap	Operating Lease Impairment Loss OperatingLeaseImpairmentLoss	1000000	usd
CY2021	us-gaap	Operating Lease Impairment Loss OperatingLeaseImpairmentLoss	3600000	usd
CY2021	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	1700000	usd
CY2023Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	172387000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	170789000	usd
CY2023Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	73698000	usd
CY2022Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	63363000	usd
CY2023Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	98689000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	107426000	usd
CY2023	us-gaap	Depreciation Depreciation	13000000	usd
CY2022	us-gaap	Depreciation Depreciation	14100000	usd
CY2021	us-gaap	Depreciation Depreciation	14400000	usd
CY2023	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	1100000	usd
CY2021	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	1700000	usd
CY2023Q4	us-gaap	Capitalized Computer Software Gross CapitalizedComputerSoftwareGross	287519000	usd
CY2022Q4	us-gaap	Capitalized Computer Software Gross CapitalizedComputerSoftwareGross	250551000	usd
CY2023Q4	blkb	Capitalized Content Gross CapitalizedContentGross	6945000	usd
CY2022Q4	blkb	Capitalized Content Gross CapitalizedContentGross	3409000	usd
CY2023Q4	us-gaap	Capitalized Computer Software Accumulated Amortization CapitalizedComputerSoftwareAccumulatedAmortization	134270000	usd
CY2022Q4	us-gaap	Capitalized Computer Software Accumulated Amortization CapitalizedComputerSoftwareAccumulatedAmortization	112937000	usd
CY2023Q4	us-gaap	Capitalized Computer Software Net CapitalizedComputerSoftwareNet	160194000	usd
CY2022Q4	us-gaap	Capitalized Computer Software Net CapitalizedComputerSoftwareNet	141023000	usd
CY2022	us-gaap	Capitalized Computer Software Impairments1 CapitalizedComputerSoftwareImpairments1	2300000	usd
CY2023	us-gaap	Capitalized Computer Software Amortization1 CapitalizedComputerSoftwareAmortization1	42800000	usd
CY2022	us-gaap	Capitalized Computer Software Amortization1 CapitalizedComputerSoftwareAmortization1	36800000	usd
CY2021	us-gaap	Capitalized Computer Software Amortization1 CapitalizedComputerSoftwareAmortization1	31000000	usd
CY2023Q4	us-gaap	Restricted Cash RestrictedCash	695489000	usd
CY2022Q4	us-gaap	Restricted Cash RestrictedCash	700611000	usd
CY2023Q4	us-gaap	Escrow Deposit EscrowDeposit	1517000	usd
CY2022Q4	us-gaap	Escrow Deposit EscrowDeposit	1629000	usd
CY2023Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	697006000	usd
CY2022Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	702240000	usd
CY2023Q4	us-gaap	Capitalized Contract Cost Net CapitalizedContractCostNet	62377000	usd
CY2022Q4	us-gaap	Capitalized Contract Cost Net CapitalizedContractCostNet	74272000	usd
CY2023Q4	blkb	Prepaid Software Maintenance Current And Long Term PrepaidSoftwareMaintenanceCurrentAndLongTerm	35169000	usd
CY2022Q4	blkb	Prepaid Software Maintenance Current And Long Term PrepaidSoftwareMaintenanceCurrentAndLongTerm	34766000	usd
CY2023Q4	blkb	Derivative Instruments Current And Long Term DerivativeInstrumentsCurrentAndLongTerm	16198000	usd
CY2022Q4	blkb	Derivative Instruments Current And Long Term DerivativeInstrumentsCurrentAndLongTerm	32117000	usd
CY2023Q4	us-gaap	Hosting Arrangement Service Contract Implementation Cost Capitalized After Accumulated Amortization HostingArrangementServiceContractImplementationCostCapitalizedAfterAccumulatedAmortization	9259000	usd
CY2022Q4	us-gaap	Hosting Arrangement Service Contract Implementation Cost Capitalized After Accumulated Amortization HostingArrangementServiceContractImplementationCostCapitalizedAfterAccumulatedAmortization	10189000	usd
CY2023Q4	us-gaap	Unbilled Contracts Receivable UnbilledContractsReceivable	5615000	usd
CY2022Q4	us-gaap	Unbilled Contracts Receivable UnbilledContractsReceivable	5775000	usd
CY2023Q4	blkb	Prepaid Insurance Currentand Longterm PrepaidInsuranceCurrentandLongterm	3940000	usd
CY2022Q4	blkb	Prepaid Insurance Currentand Longterm PrepaidInsuranceCurrentandLongterm	4902000	usd
CY2023Q4	blkb	Taxes Prepaid And Receivable Current And Long Term TaxesPrepaidAndReceivableCurrentAndLongTerm	3418000	usd
CY2022Q4	blkb	Taxes Prepaid And Receivable Current And Long Term TaxesPrepaidAndReceivableCurrentAndLongTerm	1855000	usd
CY2023Q4	blkb	Deferred Income Taxes And Other Assets Current And Noncurrent DeferredIncomeTaxesAndOtherAssetsCurrentAndNoncurrent	644000	usd
CY2022Q4	blkb	Deferred Income Taxes And Other Assets Current And Noncurrent DeferredIncomeTaxesAndOtherAssetsCurrentAndNoncurrent	1153000	usd
CY2023Q4	us-gaap	Other Assets OtherAssets	13702000	usd
CY2022Q4	us-gaap	Other Assets OtherAssets	10929000	usd
CY2023Q4	us-gaap	Prepaid Expense And Other Assets PrepaidExpenseAndOtherAssets	150322000	usd
CY2022Q4	us-gaap	Prepaid Expense And Other Assets PrepaidExpenseAndOtherAssets	175958000	usd
CY2023Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	51037000	usd
CY2022Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	94304000	usd
CY2023Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	99285000	usd
CY2022Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	81654000	usd
CY2023	us-gaap	Capitalized Contract Cost Amortization CapitalizedContractCostAmortization	31900000	usd
CY2022	us-gaap	Capitalized Contract Cost Amortization CapitalizedContractCostAmortization	33600000	usd
CY2021	us-gaap	Capitalized Contract Cost Amortization CapitalizedContractCostAmortization	35500000	usd
CY2023Q4	us-gaap	Capitalized Contract Cost Net Current CapitalizedContractCostNetCurrent	25300000	usd
CY2022Q4	us-gaap	Capitalized Contract Cost Net Current CapitalizedContractCostNetCurrent	29100000	usd
CY2023Q4	blkb	Prepaid Software Maintenance And Subscriptions Current PrepaidSoftwareMaintenanceAndSubscriptionsCurrent	32400000	usd
CY2022Q4	blkb	Prepaid Software Maintenance And Subscriptions Current PrepaidSoftwareMaintenanceAndSubscriptionsCurrent	31700000	usd
CY2023	us-gaap	Hosting Arrangement Service Contract Implementation Cost Expense Amortization HostingArrangementServiceContractImplementationCostExpenseAmortization	2500000	usd
CY2022	us-gaap	Hosting Arrangement Service Contract Implementation Cost Expense Amortization HostingArrangementServiceContractImplementationCostExpenseAmortization	2200000	usd
CY2021	us-gaap	Hosting Arrangement Service Contract Implementation Cost Expense Amortization HostingArrangementServiceContractImplementationCostExpenseAmortization	1900000	usd
CY2023Q4	us-gaap	Hosting Arrangement Service Contract Implementation Cost Capitalized Accumulated Amortization HostingArrangementServiceContractImplementationCostCapitalizedAccumulatedAmortization	7700000	usd
CY2022Q4	us-gaap	Hosting Arrangement Service Contract Implementation Cost Capitalized Accumulated Amortization HostingArrangementServiceContractImplementationCostCapitalizedAccumulatedAmortization	5200000	usd
CY2023Q4	us-gaap	Taxes Payable Current And Noncurrent TaxesPayableCurrentAndNoncurrent	21282000	usd
CY2022Q4	us-gaap	Taxes Payable Current And Noncurrent TaxesPayableCurrentAndNoncurrent	16667000	usd
CY2023Q4	blkb	Accrued Customer Credit Balances Current And Long Term AccruedCustomerCreditBalancesCurrentAndLongTerm	10238000	usd
CY2022Q4	blkb	Accrued Customer Credit Balances Current And Long Term AccruedCustomerCreditBalancesCurrentAndLongTerm	8257000	usd
CY2023Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	6701000	usd
CY2022Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	7723000	usd
CY2023Q4	us-gaap	Derivative Liabilities Noncurrent DerivativeLiabilitiesNoncurrent	5540000	usd
CY2022Q4	us-gaap	Derivative Liabilities Noncurrent DerivativeLiabilitiesNoncurrent	323000	usd
CY2023Q4	blkb	Accrued Commissions And Salaries Current And Long Term AccruedCommissionsAndSalariesCurrentAndLongTerm	4413000	usd
CY2022Q4	blkb	Accrued Commissions And Salaries Current And Long Term AccruedCommissionsAndSalariesCurrentAndLongTerm	6944000	usd
CY2023Q4	blkb	Accrued Transaction Based Costs Related To Payments Services AccruedTransactionBasedCostsRelatedToPaymentsServices	4323000	usd
CY2022Q4	blkb	Accrued Transaction Based Costs Related To Payments Services AccruedTransactionBasedCostsRelatedToPaymentsServices	5059000	usd
CY2023Q4	us-gaap	Accrued Insurance Current And Noncurrent AccruedInsuranceCurrentAndNoncurrent	3865000	usd
CY2022Q4	us-gaap	Accrued Insurance Current And Noncurrent AccruedInsuranceCurrentAndNoncurrent	2467000	usd
CY2023Q4	us-gaap	Accrued Professional Fees Current And Noncurrent AccruedProfessionalFeesCurrentAndNoncurrent	3659000	usd
CY2022Q4	us-gaap	Accrued Professional Fees Current And Noncurrent AccruedProfessionalFeesCurrentAndNoncurrent	28448000	usd
CY2023Q4	us-gaap	Accrued Vacation Current And Noncurrent AccruedVacationCurrentAndNoncurrent	2452000	usd
CY2022Q4	us-gaap	Accrued Vacation Current And Noncurrent AccruedVacationCurrentAndNoncurrent	2156000	usd
CY2023Q4	us-gaap	Business Combination Contingent Consideration Liability BusinessCombinationContingentConsiderationLiability	1403000	usd
CY2022Q4	us-gaap	Business Combination Contingent Consideration Liability BusinessCombinationContingentConsiderationLiability	2710000	usd
CY2023Q4	us-gaap	Other Liabilities OtherLiabilities	10704000	usd
CY2022Q4	us-gaap	Other Liabilities OtherLiabilities	9542000	usd
CY2023Q4	us-gaap	Accrued Liabilities And Other Liabilities AccruedLiabilitiesAndOtherLiabilities	74580000	usd
CY2022Q4	us-gaap	Accrued Liabilities And Other Liabilities AccruedLiabilitiesAndOtherLiabilities	90296000	usd
CY2023Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	10258000	usd
CY2022Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	4294000	usd
CY2023Q4	blkb	Accrued Expenses And Other Current Liabilities AccruedExpensesAndOtherCurrentLiabilities	64322000	usd
CY2022Q4	blkb	Accrued Expenses And Other Current Liabilities AccruedExpensesAndOtherCurrentLiabilities	86002000	usd
CY2023	us-gaap	Investment Income Interest InvestmentIncomeInterest	8821000	usd
CY2022	us-gaap	Investment Income Interest InvestmentIncomeInterest	1746000	usd
CY2021	us-gaap	Investment Income Interest InvestmentIncomeInterest	392000	usd
CY2023	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-36000	usd
CY2022	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	4635000	usd
CY2021	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-1644000	usd
CY2023	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	4076000	usd
CY2022	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	2332000	usd
CY2021	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	1432000	usd
CY2023	blkb	Nonoperating Income Expense Excluding Interest Expense NonoperatingIncomeExpenseExcludingInterestExpense	12861000	usd
CY2022	blkb	Nonoperating Income Expense Excluding Interest Expense NonoperatingIncomeExpenseExcludingInterestExpense	8713000	usd
CY2021	blkb	Nonoperating Income Expense Excluding Interest Expense NonoperatingIncomeExpenseExcludingInterestExpense	180000	usd
CY2023Q4	us-gaap	Other Long Term Debt OtherLongTermDebt	2800000	usd
CY2022Q4	us-gaap	Other Long Term Debt OtherLongTermDebt	2247000	usd
CY2023Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	781145000	usd
CY2022Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	861986000	usd
CY2023Q4	us-gaap	Debt Instrument Interest Rate Effective Percentage DebtInstrumentInterestRateEffectivePercentage	0.0424
CY2022Q4	us-gaap	Debt Instrument Interest Rate Effective Percentage DebtInstrumentInterestRateEffectivePercentage	0.0452
CY2023Q4	us-gaap	Debt Instrument Unamortized Discount Premium And Debt Issuance Costs Net DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet	-1481000	usd
CY2022Q4	us-gaap	Debt Instrument Unamortized Discount Premium And Debt Issuance Costs Net DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet	-2943000	usd
CY2023Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	19259000	usd
CY2022Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	18802000	usd
CY2023Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	760405000	usd
CY2022Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	840241000	usd
CY2020Q4	us-gaap	Debt Instrument Term DebtInstrumentTerm	P5Y
CY2020Q4	us-gaap	Line Of Credit Facility Maximum Borrowing Capacity LineOfCreditFacilityMaximumBorrowingCapacity	900000000	usd
CY2020Q4	blkb	Lineof Credit Facility Available Increase Capacity Amount LineofCreditFacilityAvailableIncreaseCapacityAmount	250000000	usd
CY2023Q4	us-gaap	Line Of Credit Facility Current Borrowing Capacity LineOfCreditFacilityCurrentBorrowingCapacity	384500000	usd
CY2022Q1	blkb	Lineof Credit Facility Available Increase Capacity Amount LineofCreditFacilityAvailableIncreaseCapacityAmount	250000000	usd
CY2023	us-gaap	Line Of Credit Facility Unused Capacity Commitment Fee Percentage LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage	0.00250
CY2020Q4	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	4000000	usd
CY2020Q4	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	1200000	usd
CY2020Q4	us-gaap	Debt Instrument Unamortized Discount Premium And Debt Issuance Costs Net DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet	-2000000	usd
CY2023Q4	us-gaap	Debt Issuance Costs Line Of Credit Arrangements Net DebtIssuanceCostsLineOfCreditArrangementsNet	600000	usd
CY2022Q4	us-gaap	Supplier Finance Program Obligation SupplierFinanceProgramObligation	2247000	usd
CY2023	us-gaap	Supplier Finance Program Obligation Increase SupplierFinanceProgramObligationIncrease	2491000	usd
CY2023	us-gaap	Supplier Finance Program Obligation Decrease Settlement SupplierFinanceProgramObligationDecreaseSettlement	1938000	usd
CY2023Q4	us-gaap	Supplier Finance Program Obligation SupplierFinanceProgramObligation	2800000	usd
CY2023Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	19259000	usd
CY2023Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	708534000	usd
CY2023Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	1969000	usd
CY2023Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	2166000	usd
CY2023Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	2374000	usd
CY2023Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	46843000	usd
CY2023Q4	us-gaap	Long Term Debt LongTermDebt	781145000	usd
CY2023	us-gaap	Cash Flow Hedge Gain Loss To Be Reclassified Within Twelve Months CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths	-16400000	usd
CY2021	us-gaap	Gain Loss On Cash Flow Hedge Ineffectiveness Net GainLossOnCashFlowHedgeIneffectivenessNet	0	usd
CY2022	us-gaap	Gain Loss On Cash Flow Hedge Ineffectiveness Net GainLossOnCashFlowHedgeIneffectivenessNet	0	usd
CY2023	us-gaap	Gain Loss On Cash Flow Hedge Ineffectiveness Net GainLossOnCashFlowHedgeIneffectivenessNet	0	usd
CY2023	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet	0	usd
CY2021	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet	0	usd
CY2022	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet	0	usd
CY2023	us-gaap	Operating Lease Cost OperatingLeaseCost	8812000	usd
CY2022	us-gaap	Operating Lease Cost OperatingLeaseCost	9501000	usd
CY2021	us-gaap	Operating Lease Cost OperatingLeaseCost	9636000	usd
CY2023	us-gaap	Variable Lease Cost VariableLeaseCost	1431000	usd
CY2022	us-gaap	Variable Lease Cost VariableLeaseCost	1670000	usd
CY2021	us-gaap	Variable Lease Cost VariableLeaseCost	2478000	usd
CY2023	us-gaap	Sublease Income SubleaseIncome	3356000	usd
CY2022	us-gaap	Sublease Income SubleaseIncome	2763000	usd
CY2021	us-gaap	Sublease Income SubleaseIncome	1516000	usd
CY2023	us-gaap	Lease Cost LeaseCost	6887000	usd
CY2022	us-gaap	Lease Cost LeaseCost	8408000	usd
CY2021	us-gaap	Lease Cost LeaseCost	10598000	usd
CY2023	us-gaap	Operating Lease Impairment Loss OperatingLeaseImpairmentLoss	5600000	usd
CY2022	us-gaap	Operating Lease Impairment Loss OperatingLeaseImpairmentLoss	1000000	usd
CY2021	us-gaap	Operating Lease Impairment Loss OperatingLeaseImpairmentLoss	3600000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	8662000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	7703000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	6107000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	6207000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	6101000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	20689000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	55469000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	8683000	usd
CY2023Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	46786000	usd
CY2023Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	36927000	usd
CY2022Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	45899000	usd
CY2023Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	46786000	usd
CY2022Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	52641000	usd
CY2023Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P7Y8M12D
CY2022Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P8Y6M
CY2021Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P8Y10M24D
CY2023Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0470
CY2022Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0463
CY2021Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0468
CY2023	us-gaap	Operating Lease Payments OperatingLeasePayments	10983000	usd
CY2022	us-gaap	Operating Lease Payments OperatingLeasePayments	11439000	usd
CY2021	us-gaap	Operating Lease Payments OperatingLeasePayments	11338000	usd
CY2023	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	2765000	usd
CY2022	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	0	usd
CY2021	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	5358000	usd
CY2023Q4	blkb	Liability Insurance Amount Total LiabilityInsuranceAmountTotal	50000000	usd
CY2023Q4	blkb	Liability Insurance Amount Deductible LiabilityInsuranceAmountDeductible	250000	usd
CY2023	us-gaap	Schedule Of Liability For Unpaid Claims And Claims Adjustment Expense ScheduleOfLiabilityForUnpaidClaimsAndClaimsAdjustmentExpense	<div style="margin-top:9pt;text-align:justify"><span style="color:#51555c;font-family:'Calibri',sans-serif;font-size:10pt;font-weight:400;line-height:120%">We recorded expenses and offsetting probable insurance recoveries related to the Security Incident as follows:</span></div><div style="margin-top:3pt"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:60.742%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:11.619%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:11.619%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:11.620%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="background-color:#004054;border-left:1pt solid #004054;border-top:1pt solid #004054;padding:0 1pt"></td><td colspan="9" style="background-color:#004054;border-left:1pt solid #004054;border-right:1pt solid #004054;border-top:1pt solid #004054;padding:2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#ffffff;font-family:'Calibri',sans-serif;font-size:8pt;font-weight:700;line-height:120%">Years ended December 31,</span></td></tr><tr><td colspan="3" style="background-color:#004054;border-left:1pt solid #004054;border-top:1pt solid #004054;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#ffffff;font-family:'Calibri',sans-serif;font-size:8pt;font-weight:700;line-height:120%">(dollars in thousands)</span></td><td colspan="3" style="background-color:#004054;border-left:1pt solid #004054;border-top:1pt solid #ffffff;padding:2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#ffffff;font-family:'Calibri',sans-serif;font-size:8pt;font-weight:700;line-height:120%">2023</span></td><td colspan="3" style="background-color:#004054;border-left:1pt solid #004054;border-top:1pt solid #ffffff;padding:2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#ffffff;font-family:'Calibri',sans-serif;font-size:8pt;font-weight:700;line-height:120%">2022</span></td><td colspan="3" style="background-color:#004054;border-left:1pt solid #004054;border-right:1pt solid #004054;border-top:1pt solid #ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="text-align:right"><span style="color:#ffffff;font-family:'Calibri',sans-serif;font-size:8pt;font-weight:700;line-height:120%">2021</span></div></td></tr><tr><td colspan="3" style="background-color:#ebfbff;border-top:1pt solid #004054;padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#51555c;font-family:'Calibri',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Gross expense</span></td><td style="background-color:#ebfbff;border-top:1pt solid #004054;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#51555c;font-family:'Calibri',sans-serif;font-size:10pt;font-weight:400;line-height:120%">$</span></td><td style="background-color:#ebfbff;border-top:1pt solid #004054;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#51555c;font-family:'Calibri',sans-serif;font-size:10pt;font-weight:400;line-height:120%">53,426 </span></td><td style="background-color:#ebfbff;border-top:1pt solid #004054;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td style="background-color:#ebfbff;border-top:1pt solid #004054;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#51555c;font-family:'Calibri',sans-serif;font-size:10pt;font-weight:400;line-height:120%">$</span></td><td style="background-color:#ebfbff;border-top:1pt solid #004054;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#51555c;font-family:'Calibri',sans-serif;font-size:10pt;font-weight:400;line-height:120%">57,614 </span></td><td style="background-color:#ebfbff;border-top:1pt solid #004054;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td style="background-color:#ebfbff;border-top:1pt solid #004054;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#51555c;font-family:'Calibri',sans-serif;font-size:10pt;font-weight:400;line-height:120%">$</span></td><td style="background-color:#ebfbff;border-top:1pt solid #004054;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#51555c;font-family:'Calibri',sans-serif;font-size:10pt;font-weight:400;line-height:120%">40,561 </span></td><td style="background-color:#ebfbff;border-top:1pt solid #004054;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#51555c;font-family:'Calibri',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Offsetting probable insurance recoveries</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#51555c;font-family:'Calibri',sans-serif;font-size:10pt;font-weight:400;line-height:120%">— </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#51555c;font-family:'Calibri',sans-serif;font-size:10pt;font-weight:400;line-height:120%">(1,891)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#51555c;font-family:'Calibri',sans-serif;font-size:10pt;font-weight:400;line-height:120%">(38,745)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ebfbff;border-bottom:1pt solid #0cd973;padding:2px 1pt 2px 7pt;text-align:left;vertical-align:top"><span style="color:#51555c;font-family:'Calibri',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Net expense</span></td><td style="background-color:#ebfbff;border-bottom:1pt solid #0cd973;border-top:1pt solid #51555c;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#51555c;font-family:'Calibri',sans-serif;font-size:10pt;font-weight:400;line-height:120%">$</span></td><td style="background-color:#ebfbff;border-bottom:1pt solid #0cd973;border-top:1pt solid #51555c;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#51555c;font-family:'Calibri',sans-serif;font-size:10pt;font-weight:400;line-height:120%">53,426 </span></td><td style="background-color:#ebfbff;border-bottom:1pt solid #0cd973;border-top:1pt solid #51555c;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td style="background-color:#ebfbff;border-bottom:1pt solid #0cd973;border-top:1pt solid #51555c;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#51555c;font-family:'Calibri',sans-serif;font-size:10pt;font-weight:400;line-height:120%">$</span></td><td style="background-color:#ebfbff;border-bottom:1pt solid #0cd973;border-top:1pt solid #51555c;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#51555c;font-family:'Calibri',sans-serif;font-size:10pt;font-weight:400;line-height:120%">55,723 </span></td><td style="background-color:#ebfbff;border-bottom:1pt solid #0cd973;border-top:1pt solid #51555c;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td style="background-color:#ebfbff;border-bottom:1pt solid #0cd973;border-top:1pt solid #51555c;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#51555c;font-family:'Calibri',sans-serif;font-size:10pt;font-weight:400;line-height:120%">$</span></td><td style="background-color:#ebfbff;border-bottom:1pt solid #0cd973;border-top:1pt solid #51555c;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#51555c;font-family:'Calibri',sans-serif;font-size:10pt;font-weight:400;line-height:120%">1,816 </span></td><td style="background-color:#ebfbff;border-bottom:1pt solid #0cd973;border-top:1pt solid #51555c;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr></table></div><div style="padding-left:18pt;text-align:justify;text-indent:-18pt"><span><br/></span></div><div style="margin-top:9pt;text-align:justify"><span style="color:#51555c;font-family:'Calibri',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The following summarizes our cumulative expenses, insurance recoveries recognized and insurance recoveries paid as of:</span></div><div style="margin-top:3pt"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:60.742%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:11.619%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:11.619%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:11.620%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="background-color:#004054;border-left:1pt solid #004054;border-top:1pt solid #004054;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#ffffff;font-family:'Calibri',sans-serif;font-size:8pt;font-weight:700;line-height:120%">(dollars in thousands)</span></td><td colspan="3" style="background-color:#004054;border-left:1pt solid #004054;border-top:1pt solid #004054;padding:2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#ffffff;font-family:'Calibri',sans-serif;font-size:8pt;font-weight:700;line-height:120%">December 31,<br/>2023</span></td><td colspan="3" style="background-color:#004054;border-left:1pt solid #004054;border-top:1pt solid #004054;padding:2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#ffffff;font-family:'Calibri',sans-serif;font-size:8pt;font-weight:700;line-height:120%">December 31,<br/>2022</span></td><td colspan="3" style="background-color:#004054;border-left:1pt solid #004054;border-right:1pt solid #004054;border-top:1pt solid #004054;padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="text-align:right"><span style="color:#ffffff;font-family:'Calibri',sans-serif;font-size:8pt;font-weight:700;line-height:120%">December 31, 2021</span></div></td></tr><tr><td colspan="3" style="background-color:#ebfbff;border-top:1pt solid #004054;padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#51555c;font-family:'Calibri',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Cumulative gross expense</span></td><td style="background-color:#ebfbff;border-top:1pt solid #004054;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#51555c;font-family:'Calibri',sans-serif;font-size:10pt;font-weight:400;line-height:120%">$</span></td><td style="background-color:#ebfbff;border-top:1pt solid #004054;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#51555c;font-family:'Calibri',sans-serif;font-size:10pt;font-weight:400;line-height:120%">161,431 </span></td><td style="background-color:#ebfbff;border-top:1pt solid #004054;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td style="background-color:#ebfbff;border-top:1pt solid #004054;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#51555c;font-family:'Calibri',sans-serif;font-size:10pt;font-weight:400;line-height:120%">$</span></td><td style="background-color:#ebfbff;border-top:1pt solid #004054;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#51555c;font-family:'Calibri',sans-serif;font-size:10pt;font-weight:400;line-height:120%">108,005 </span></td><td style="background-color:#ebfbff;border-top:1pt solid #004054;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td style="background-color:#ebfbff;border-top:1pt solid #004054;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#51555c;font-family:'Calibri',sans-serif;font-size:10pt;font-weight:400;line-height:120%">$</span></td><td style="background-color:#ebfbff;border-top:1pt solid #004054;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#51555c;font-family:'Calibri',sans-serif;font-size:10pt;font-weight:400;line-height:120%">50,391 </span></td><td style="background-color:#ebfbff;border-top:1pt solid #004054;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#51555c;font-family:'Calibri',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Cumulative offsetting insurance recoveries recognized</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#51555c;font-family:'Calibri',sans-serif;font-size:10pt;font-weight:400;line-height:120%">(50,000)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#51555c;font-family:'Calibri',sans-serif;font-size:10pt;font-weight:400;line-height:120%">(50,000)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#51555c;font-family:'Calibri',sans-serif;font-size:10pt;font-weight:400;line-height:120%">(48,109)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ebfbff;padding:2px 1pt 2px 7pt;text-align:left;vertical-align:top"><span style="color:#51555c;font-family:'Calibri',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Cumulative net expense</span></td><td style="background-color:#ebfbff;border-top:1pt solid #51555c;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#51555c;font-family:'Calibri',sans-serif;font-size:10pt;font-weight:400;line-height:120%">$</span></td><td style="background-color:#ebfbff;border-top:1pt solid #51555c;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#51555c;font-family:'Calibri',sans-serif;font-size:10pt;font-weight:400;line-height:120%">111,431 </span></td><td style="background-color:#ebfbff;border-top:1pt solid #51555c;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td style="background-color:#ebfbff;border-top:1pt solid #51555c;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#51555c;font-family:'Calibri',sans-serif;font-size:10pt;font-weight:400;line-height:120%">$</span></td><td style="background-color:#ebfbff;border-top:1pt solid #51555c;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#51555c;font-family:'Calibri',sans-serif;font-size:10pt;font-weight:400;line-height:120%">58,005 </span></td><td style="background-color:#ebfbff;border-top:1pt solid #51555c;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td style="background-color:#ebfbff;border-top:1pt solid #51555c;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#51555c;font-family:'Calibri',sans-serif;font-size:10pt;font-weight:400;line-height:120%">$</span></td><td style="background-color:#ebfbff;border-top:1pt solid #51555c;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#51555c;font-family:'Calibri',sans-serif;font-size:10pt;font-weight:400;line-height:120%">2,282 </span></td><td style="background-color:#ebfbff;border-top:1pt solid #51555c;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr style="height:15pt"><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #51555c;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #51555c;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #51555c;padding:0 1pt"></td></tr><tr><td colspan="3" style="background-color:#ebfbff;border-bottom:1pt solid #0cd973;padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#51555c;font-family:'Calibri',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Cumulative offsetting insurance recoveries paid</span></td><td style="background-color:#ebfbff;border-bottom:1pt solid #0cd973;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#51555c;font-family:'Calibri',sans-serif;font-size:10pt;font-weight:400;line-height:120%">$</span></td><td style="background-color:#ebfbff;border-bottom:1pt solid #0cd973;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#51555c;font-family:'Calibri',sans-serif;font-size:10pt;font-weight:400;line-height:120%">(50,000)</span></td><td style="background-color:#ebfbff;border-bottom:1pt solid #0cd973;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td style="background-color:#ebfbff;border-bottom:1pt solid #0cd973;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#51555c;font-family:'Calibri',sans-serif;font-size:10pt;font-weight:400;line-height:120%">$</span></td><td style="background-color:#ebfbff;border-bottom:1pt solid #0cd973;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#51555c;font-family:'Calibri',sans-serif;font-size:10pt;font-weight:400;line-height:120%">(50,000)</span></td><td style="background-color:#ebfbff;border-bottom:1pt solid #0cd973;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td style="background-color:#ebfbff;border-bottom:1pt solid #0cd973;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#51555c;font-family:'Calibri',sans-serif;font-size:10pt;font-weight:400;line-height:120%">$</span></td><td style="background-color:#ebfbff;border-bottom:1pt solid #0cd973;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#51555c;font-family:'Calibri',sans-serif;font-size:10pt;font-weight:400;line-height:120%">(29,968)</span></td><td style="background-color:#ebfbff;border-bottom:1pt solid #0cd973;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr></table></div>
CY2023	blkb	Security Incident Expense SecurityIncidentExpense	53426000	usd
CY2022	blkb	Security Incident Expense SecurityIncidentExpense	57614000	usd
CY2021	blkb	Security Incident Expense SecurityIncidentExpense	40561000	usd
CY2023	blkb	Security Incident Accrued Insurance Recoveries SecurityIncidentAccruedInsuranceRecoveries	0	usd
CY2022	blkb	Security Incident Accrued Insurance Recoveries SecurityIncidentAccruedInsuranceRecoveries	1891000	usd
CY2021	blkb	Security Incident Accrued Insurance Recoveries SecurityIncidentAccruedInsuranceRecoveries	38745000	usd
CY2023	blkb	Security Incident Net Expense SecurityIncidentNetExpense	53426000	usd
CY2022	blkb	Security Incident Net Expense SecurityIncidentNetExpense	55723000	usd
CY2021	blkb	Security Incident Net Expense SecurityIncidentNetExpense	1816000	usd
CY2023Q4	blkb	Security Incident Cumulative Expense SecurityIncidentCumulativeExpense	161431000	usd
CY2022Q4	blkb	Security Incident Cumulative Expense SecurityIncidentCumulativeExpense	108005000	usd
CY2021Q4	blkb	Security Incident Cumulative Expense SecurityIncidentCumulativeExpense	50391000	usd
CY2023Q4	blkb	Security Incident Cumulative Accrued Insurance Recoveries SecurityIncidentCumulativeAccruedInsuranceRecoveries	50000000	usd
CY2022Q4	blkb	Security Incident Cumulative Accrued Insurance Recoveries SecurityIncidentCumulativeAccruedInsuranceRecoveries	50000000	usd
CY2021Q4	blkb	Security Incident Cumulative Accrued Insurance Recoveries SecurityIncidentCumulativeAccruedInsuranceRecoveries	48109000	usd
CY2023Q4	blkb	Security Incident Cumulative Net Expense SecurityIncidentCumulativeNetExpense	111431000	usd
CY2022Q4	blkb	Security Incident Cumulative Net Expense SecurityIncidentCumulativeNetExpense	58005000	usd
CY2021Q4	blkb	Security Incident Cumulative Net Expense SecurityIncidentCumulativeNetExpense	2282000	usd
CY2023	us-gaap	Insurance Recoveries InsuranceRecoveries	50000000	usd
CY2022	us-gaap	Insurance Recoveries InsuranceRecoveries	50000000	usd
CY2021	us-gaap	Insurance Recoveries InsuranceRecoveries	29968000	usd
CY2023	blkb	Security Incident Net Pre Tax Expense SecurityIncidentNetPreTaxExpense	53400000	usd
CY2023	blkb	Security Incident Ongoing Legal Fees SecurityIncidentOngoingLegalFees	22400000	usd
CY2023	us-gaap	Loss Contingency Accrual Carrying Value Period Increase Decrease LossContingencyAccrualCarryingValuePeriodIncreaseDecrease	31000000	usd
CY2023Q4	blkb	Security Incident Net Cash Outlays SecurityIncidentNetCashOutlays	78000000	usd
CY2023Q4	us-gaap	Loss Contingency Accrual At Carrying Value LossContingencyAccrualAtCarryingValue	1500000	usd
CY2023	blkb	Security Incident Number Of Customer Reimbursement Requests Received SecurityIncidentNumberOfCustomerReimbursementRequestsReceived	260	cases
CY2023	us-gaap	Loss Contingency Claims Settled Number LossContingencyClaimsSettledNumber	214	cases
CY2023	blkb	Loss Contingency Claims Settled Percent LossContingencyClaimsSettledPercent	0.82
CY2023	blkb	Security Incident Customer Reimbursement Requests Inactive Or Abandoned Number SecurityIncidentCustomerReimbursementRequestsInactiveOrAbandonedNumber	39	cases
CY2023	blkb	Security Incident Customer Reimbursement Requests Inactive Or Abandoned Percent SecurityIncidentCustomerReimbursementRequestsInactiveOrAbandonedPercent	0.15
CY2023	blkb	Security Incident Number Of Reservations Of The Right To Seek Future Expense Recovery SecurityIncidentNumberOfReservationsOfTheRightToSeekFutureExpenseRecovery	400	cases
CY2023	blkb	Security Incident Subrogation Claims Number SecurityIncidentSubrogationClaimsNumber	3	cases
CY2023	blkb	Security Incident Number Of State Attorneys General SecurityIncidentNumberOfStateAttorneysGeneral	49	cases
CY2023	blkb	Security Incident Number Of State Attorneys General SecurityIncidentNumberOfStateAttorneysGeneral	49	cases
CY2023	blkb	Security Incident Number Of State Attorneys General SecurityIncidentNumberOfStateAttorneysGeneral	49	cases
CY2023	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	18879000	usd
CY2022	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	3485000	usd
CY2021	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-2499000	usd
CY2023	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	12331000	usd
CY2022	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	5708000	usd
CY2021	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	-257000	usd
CY2023	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	8982000	usd
CY2022	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	7283000	usd
CY2021	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	6570000	usd
CY2023	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	40192000	usd
CY2022	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	16476000	usd
CY2021	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	3814000	usd
CY2023	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-18303000	usd
CY2022	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-16880000	usd
CY2021	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-4615000	usd
CY2023	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-5895000	usd
CY2022	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-9319000	usd
CY2021	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	222000	usd
CY2023	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-170000	usd
CY2022	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-445000	usd
CY2021	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	1964000	usd
CY2023	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-24368000	usd
CY2022	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-26644000	usd
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-2429000	usd
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	15824000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-10168000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1385000	usd
CY2023	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-22074000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-91493000	usd
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-23180000	usd
CY2023	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	39718000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	35918000	usd
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	30263000	usd
CY2023	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	17644000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-55575000	usd
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	7083000	usd
CY2023	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2022	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2021	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2023	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.200
CY2022	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.015
CY2021	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.044
CY2023	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Other EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOther	0.357
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Other EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOther	-0.087
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Other EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOther	0
CY2023	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	0.301
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	-0.064
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	0.750
CY2023	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Percent EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitPercent	0.134
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Percent EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitPercent	-0.063
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Percent EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitPercent	-0.362
CY2023	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	0.108
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.054
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	0.261
CY2023	us-gaap	Effective Income Tax Rate Reconciliation Gilti Percent EffectiveIncomeTaxRateReconciliationGiltiPercent	0.093
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Gilti Percent EffectiveIncomeTaxRateReconciliationGiltiPercent	-0.026
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Gilti Percent EffectiveIncomeTaxRateReconciliationGiltiPercent	0
CY2023	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	0.061
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	0.010
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.060
CY2023	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Meals And Entertainment EffectiveIncomeTaxRateReconciliationNondeductibleExpenseMealsAndEntertainment	0.044
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Meals And Entertainment EffectiveIncomeTaxRateReconciliationNondeductibleExpenseMealsAndEntertainment	-0.007
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Meals And Entertainment EffectiveIncomeTaxRateReconciliationNondeductibleExpenseMealsAndEntertainment	0.011
CY2023	blkb	Effective Income Tax Rate Reconciliation Unrecognized Tax Benefits EffectiveIncomeTaxRateReconciliationUnrecognizedTaxBenefits	0.007
CY2022	blkb	Effective Income Tax Rate Reconciliation Unrecognized Tax Benefits EffectiveIncomeTaxRateReconciliationUnrecognizedTaxBenefits	0.005
CY2021	blkb	Effective Income Tax Rate Reconciliation Unrecognized Tax Benefits EffectiveIncomeTaxRateReconciliationUnrecognizedTaxBenefits	-0.327
CY2023	blkb	Effective Income Tax Rate Reconciliation Acquisition Costs EffectiveIncomeTaxRateReconciliationAcquisitionCosts	0
CY2022	blkb	Effective Income Tax Rate Reconciliation Acquisition Costs EffectiveIncomeTaxRateReconciliationAcquisitionCosts	0
CY2021	blkb	Effective Income Tax Rate Reconciliation Acquisition Costs EffectiveIncomeTaxRateReconciliationAcquisitionCosts	0.087
CY2023	us-gaap	Effective Income Tax Rate Reconciliation Prior Year Income Taxes EffectiveIncomeTaxRateReconciliationPriorYearIncomeTaxes	-0.083
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Prior Year Income Taxes EffectiveIncomeTaxRateReconciliationPriorYearIncomeTaxes	0.014
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Prior Year Income Taxes EffectiveIncomeTaxRateReconciliationPriorYearIncomeTaxes	-0.042
CY2023	blkb	Effective Income Tax Rate Reconciliation Tax Credits State And Local EffectiveIncomeTaxRateReconciliationTaxCreditsStateAndLocal	0.091
CY2022	blkb	Effective Income Tax Rate Reconciliation Tax Credits State And Local EffectiveIncomeTaxRateReconciliationTaxCreditsStateAndLocal	-0.072
CY2021	blkb	Effective Income Tax Rate Reconciliation Tax Credits State And Local EffectiveIncomeTaxRateReconciliationTaxCreditsStateAndLocal	0.326
CY2023	us-gaap	Effective Income Tax Rate Reconciliation Fdii Percent EffectiveIncomeTaxRateReconciliationFdiiPercent	0.102
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Fdii Percent EffectiveIncomeTaxRateReconciliationFdiiPercent	0.023
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Fdii Percent EffectiveIncomeTaxRateReconciliationFdiiPercent	0
CY2023	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	0.423
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	-0.115
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	0.545
CY2023	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.010
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.001
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.046
CY2023	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.897
CY2022	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.183
CY2021	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.196
CY2023Q4	blkb	Deferred Tax Assets Tax Deferred Expense Capitalized Rd And Software Costs DeferredTaxAssetsTaxDeferredExpenseCapitalizedRDAndSoftwareCosts	47351000	usd
CY2022Q4	blkb	Deferred Tax Assets Tax Deferred Expense Capitalized Rd And Software Costs DeferredTaxAssetsTaxDeferredExpenseCapitalizedRDAndSoftwareCosts	12166000	usd
CY2023Q4	blkb	Deferred Tax Assets Tax Credit Carryforwards State And Foreign DeferredTaxAssetsTaxCreditCarryforwardsStateAndForeign	39260000	usd
CY2022Q4	blkb	Deferred Tax Assets Tax Credit Carryforwards State And Foreign DeferredTaxAssetsTaxCreditCarryforwardsStateAndForeign	50194000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	24717000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	21166000	usd
CY2023Q4	blkb	Deferred Tax Assets Leasing Arrangements DeferredTaxAssetsLeasingArrangements	12867000	usd
CY2022Q4	blkb	Deferred Tax Assets Leasing Arrangements DeferredTaxAssetsLeasingArrangements	14024000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	7061000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	10369000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	5992000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	1820000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Allowance For Doubtful Accounts DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts	1702000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Allowance For Doubtful Accounts DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts	1803000	usd
CY2023Q4	blkb	Deferred Tax Asset Intangible Assets DeferredTaxAssetIntangibleAssets	1050000	usd
CY2022Q4	blkb	Deferred Tax Asset Intangible Assets DeferredTaxAssetIntangibleAssets	561000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Bonuses DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBonuses	314000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Bonuses DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBonuses	455000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	2982000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	6293000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	143296000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	118851000	usd
CY2023Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	160172000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	161836000	usd
CY2023Q4	blkb	Deferred Tax Liabilities Deferred Expense Sales Commissions DeferredTaxLiabilitiesDeferredExpenseSalesCommissions	13870000	usd
CY2022Q4	blkb	Deferred Tax Liabilities Deferred Expense Sales Commissions DeferredTaxLiabilitiesDeferredExpenseSalesCommissions	16287000	usd
CY2023Q4	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	9865000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	11721000	usd
CY2023Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	5833000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	9827000	usd
CY2023Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	8342000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	9016000	usd
CY2023Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	198082000	usd
CY2022Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	208687000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	37862000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	34769000	usd
CY2023Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	92648000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	124605000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	34769000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	37862000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	31974000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	34769000	usd
CY2020Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	29184000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	31974000	usd
CY2022Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	3083000	usd
CY2021Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	3651000	usd
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	4625000	usd
CY2023	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	762000	usd
CY2022	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	629000	usd
CY2021	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	1751000	usd
CY2023	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	101000	usd
CY2022	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	89000	usd
CY2021	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	6000	usd
CY2023	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	118000	usd
CY2022	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	908000	usd
CY2021	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	57000	usd
CY2023	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	160000	usd
CY2022	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0	usd
CY2021	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	1192000	usd
CY2023	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	428000	usd
CY2022	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	378000	usd
CY2021	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	1482000	usd
CY2023Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	3240000	usd
CY2022Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	3083000	usd
CY2021Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	3651000	usd
CY2023Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	3200000	usd
CY2023Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized	3363270	shares
CY2023	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	127762000	usd
CY2022	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	110294000	usd
CY2021	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	120379000	usd
CY2023Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	77400000	usd
CY2023	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P1Y2M12D
CY2022Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	8938000	usd
CY2021Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	6522000	usd
CY2020Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-2497000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Before Reclassifications Tax OtherComprehensiveIncomeLossBeforeReclassificationsTax	201000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Before Reclassifications Tax OtherComprehensiveIncomeLossBeforeReclassificationsTax	-8068000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Before Reclassifications Tax OtherComprehensiveIncomeLossBeforeReclassificationsTax	-1982000	usd
CY2023Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-1688000	usd
CY2022Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	8938000	usd
CY2021Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	6522000	usd
CY2023	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent Of Match DefinedContributionPlanEmployerMatchingContributionPercentOfMatch	0.50
CY2021	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent Of Match DefinedContributionPlanEmployerMatchingContributionPercentOfMatch	0.50
CY2022	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent Of Match DefinedContributionPlanEmployerMatchingContributionPercentOfMatch	0.50
CY2023	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	7800000	usd
CY2022	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	9300000	usd
CY2021	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	6500000	usd
CY2021	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	0	usd
CY2023	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	0	usd
CY2022	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	0	usd
CY2023	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	1	segment
CY2023	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	1	segment
CY2023Q4	us-gaap	Noncurrent Assets NoncurrentAssets	135616000	usd
CY2022Q4	us-gaap	Noncurrent Assets NoncurrentAssets	153325000	usd
CY2023Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	1200000000	usd
CY2023Q4	us-gaap	Revenue Remaining Performance Obligation Percentage RevenueRemainingPerformanceObligationPercentage	0.50
CY2023Q4	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P12M
CY2023Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	394927000	usd
CY2022Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	385236000	usd
CY2023	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	365000000	usd
CY2023	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1105432000	usd
CY2022	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1058105000	usd
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	927740000	usd
CY2023	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1105432000	usd
CY2022	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1058105000	usd
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	927740000	usd
CY2023Q4	ecd	Non Rule10b51 Arr Adopted Flag NonRule10b51ArrAdoptedFlag	false
CY2023Q4	ecd	Non Rule10b51 Arr Trmntd Flag NonRule10b51ArrTrmntdFlag	false

Files In Submission

Name	View Source	Status
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0001280058-24-000013-index.html	Edgar Link	pending
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blkb202310-kexx41.htm	Edgar Link	pending
blkb202310-kexx971.htm	Edgar Link	pending
Financial_Report.xlsx	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
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report.css	Edgar Link	pending
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blkb-20231231_def.xml	Edgar Link	unprocessable
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2024 Q1 Form 10-K Financial Statement

#000128005824000013 Filed on February 21, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$BLKB BLACKBAUD INC Stock $blkb

2024 Q1 Form 10-K Financial Statement

#000128005824000013 Filed on February 21, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

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BLACKBAUD INC Stock $blkb