XML 64 R51.htm IDEA: XBRL DOCUMENT
v3.20.4

Reportable Segment Information Narrative (Details) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Dec. 31, 2019 USD ($) | Dec. 31, 2020 segment | Dec. 31, 2019 USD ($)
Segment Reporting [Abstract] |  |  |
Number of Reportable Segments | segment |  | 4 |
Core [Member] |  |  |
Segment Reporting [Abstract] |  |  |
Reclassification of Revenue Between Reportable Segments | $ (4,845) |  | $ (9,475)
Reclassification of Cost Between Reportable Segments | (2,866) |  | (5,550)
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Reclassification of Revenue Between Reportable Segments | (4,845) |  | (9,475)
Reclassification of Cost Between Reportable Segments | (2,866) |  | (5,550)
Payments [Member] |  |  |
Segment Reporting [Abstract] |  |  |
Reclassification of Cost Between Reportable Segments | 131 |  | 131
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Reclassification of Cost Between Reportable Segments | 131 |  | 131
Complementary [Member] |  |  |
Segment Reporting [Abstract] |  |  |
Reclassification of Revenue Between Reportable Segments | 4,845 |  | 9,475
Reclassification of Cost Between Reportable Segments | 2,866 |  | 5,550
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Reclassification of Revenue Between Reportable Segments | 4,845 |  | 9,475
Reclassification of Cost Between Reportable Segments | 2,866 |  | 5,550
Corporate and Other [Member] |  |  |
Segment Reporting [Abstract] |  |  |
Reclassification of Cost Between Reportable Segments | (131) |  | (131)
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Reclassification of Cost Between Reportable Segments | $ (131) |  | $ (131)

X
- Definition Reclassification of Cost Between Reportable Segments + References No definition available. + Details
Name: | jkhy_ReclassificationOfCostBetweenReportableSegments
Namespace Prefix: | jkhy_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Reclassification of Revenue Between Reportable Segments + References No definition available. + Details
Name: | jkhy_ReclassificationofRevenueBetweenReportableSegments
Namespace Prefix: | jkhy_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements. + References No definition available. + Details
Name: | us-gaap_NumberOfReportableSegments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_SegmentReportingAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_SegmentReportingReconcilingItemForOperatingProfitLossFromSegmentToConsolidatedLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=jkhy_CoreSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=jkhy_PaymentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=jkhy_ComplementaryMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=us-gaap_CorporateAndOtherMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |