XML 95 R55.htm IDEA: XBRL DOCUMENT
v3.23.3

Subsequent Events (Details) $ in Millions |  | 9 Months Ended
--- | --- | ---
Oct. 05, 2023 USD ($) | Sep. 30, 2023 cases
Subsequent Event [Line Items] |  |
Security incident, number of state Attorneys General | cases |  | 49
Subsequent event [Member] | US AG |  |
Subsequent Event [Line Items] |  |
Security Incident, penalty paid | $ | $ 49.5 |

X
- Definition Security incident, number of state Attorneys General + References No definition available. + Details
Name: | blkb_SecurityIncidentNumberOfStateAttorneysGeneral
Namespace Prefix: | blkb_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Security incident, penalty paid + References No definition available. + Details
Name: | blkb_SecurityIncidentPenaltyPaid
Namespace Prefix: | blkb_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 830 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481674/830-30-50-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 855 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147483399/855-10-50-2 + Details
Name: | us-gaap_SubsequentEventLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=blkb_USAGMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |