Basis of Presentation (Policy)	9 Months Ended
Basis of Presentation (Policy)	Sep. 30, 2022
Accounting Policies [Abstract]
Unaudited interim consolidated financial statements	Unaudited condensed consolidated interim financial statements The accompanying condensed consolidated interim financial statements have been prepared pursuant to the rules and regulations of the United States Securities and Exchange Commission ("SEC") for interim financial reporting. These consolidated statements are unaudited and, in the opinion of management, include all adjustments (consisting of normal recurring adjustments and accruals) necessary to state fairly the consolidated balance sheets, consolidated statements of comprehensive income, consolidated statements of cash flows and consolidated statements of stockholders’ equity, for the periods presented in accordance with accounting principles generally accepted in the United States ("U.S.") ("GAAP"). The consolidated balance sheet at December 31, 2021 has been derived from the audited consolidated financial statements at that date. Operating results and cash flows for the nine months ended September 30, 2022 are not necessarily indicative of the results that may be expected for the fiscal year ending December 31, 2022, or any other future period. Certain information and footnote disclosures normally included in annual financial statements prepared in accordance with GAAP have been omitted in accordance with the rules and regulations for interim reporting of the SEC. These condensed consolidated interim financial statements should be read in conjunction with the consolidated financial statements and notes thereto included in our Annual Report on Form 10-K for the year ended December 31, 2021, and other forms filed with the SEC from time to time.
Basis of consolidation	Basis of consolidation The condensed consolidated financial statements include the accounts of Blackbaud, Inc. and its wholly owned subsidiaries. All intercompany balances and transactions have been eliminated in consolidation.
Reportable segment	Reportable segment We report our operating results and financial information in one operating and reportable segment. Our chief operating decision maker uses consolidated financial information to make operating decisions, assess financial performance and allocate resources. Our chief operating decision maker is our chief executive officer. We acquired EVERFI (as defined below) on December 31, 2021. During the third quarter of 2022, we reorganized our market groups and EVERFI is now included in the Corporate Sector market group. See Note 13 to these condensed consolidated financial statements for additional information about our market groups. This change did not impact our conclusions that we have one operating and reportable segment and one goodwill reporting unit.
Use of estimates	Use of estimates 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, including due to COVID-19, could result in material changes and actual results could materially differ from these estimates.
Recently adopted accounting pronouncements	Recently adopted accounting pronouncements In March 2020, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting ("ASU 2020-04"). This update provides for optional financial reporting alternatives to reduce cost and complexity associated with accounting for contracts, hedging relationships, and other transactions affected by reference rate reform. This update applies only to contracts, hedging relationships, and other transactions that reference the London Interbank Offer Rate ("LIBOR") or other reference rates expected to be discontinued because of reference rate reform. The accommodations are available for all entities through December 31, 2022, with early adoption permitted. We adopted ASU 2020-04 prospectively as of July 1, 2022, and the adoption did not have a material impact on our consolidated financial statements.