| Component: (Network and Table) | |
|---|---|
| Network | 2402404 - Disclosure - Summary of Significant Accounting Policies (Finite-Lived Intangible Assets by Major Class) (Details) (http://www.blackbaud.com/role/SummaryOfSignificantAccountingPoliciesFiniteLivedIntangibleAssetsByMajorClassDetails) | 
| Table | Schedule of Finite-Lived Intangible Assets [Table] | 
| Reporting Entity [Axis] | 0001280058 (http://www.sec.gov/CIK) | 
| Finite-Lived Intangible Assets [Line Items] | Period [Axis] | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2016-01-01 - 2016-12-31 | |||||||||||||
| Finite-Lived Intangible Assets by Major Class [Axis] | |||||||||||||
| Customer relationships [Member] | Marketing assets [Member] | Acquired software and technology | Non-compete agreements [Member] | Database [Member] | |||||||||
| Range [Axis] | Range [Axis] | Range [Axis] | Range [Axis] | Range [Axis] | |||||||||
| Minimum [Member] | Maximum [Member] | Range [Domain] | Minimum [Member] | Maximum [Member] | Range [Domain] | Minimum [Member] | Maximum [Member] | Range [Domain] | Minimum [Member] | Maximum [Member] | Range [Domain] | Range [Domain] | |
| Finite-lived intangible assets, amortization method | |||||||||||||
| Finite-lived intangible assets, useful life | |||||||||||||