XML 37 R27.htm IDEA: XBRL DOCUMENT
v3.24.0.1

Stock Based Compensation (Tables) | 6 Months Ended
--- | ---
Dec. 31, 2023
Share-Based Payment Arrangement [Abstract] |
Schedule of Nonvested Restricted Stock Units Activity [Table Text Block] | The following table summarizes non-vested restricted stock unit awards and performance awards as of December 31, 2023:
Unit awards |  | Units |  | Weighted Average Grant Date Fair Value |  | Aggregate Intrinsic Value
Outstanding July 1, 2023 |  | 303 |  |  | $ | 190.08 |  |  |
Granted 1 |  | 153 |  |  | 178.63 |  |  |
Vested |  | (69) |  |  | 183.35 |  |  |
Forfeited 2 |  | (33) |  |  | 197.38 |  |  |
Outstanding December 31, 2023 |  | 354 |  |  | $ | 185.77 |  |  | $ | 57,773 |
1 Granted includes restricted stock unit awards and performance unit awards at 100% achievement. 2 Forfeited includes restricted stock unit awards and performance unit awards forfeited for service requirements not met and performance unit awards not settled due to underachievement of performance measures.
Schedule Of Share Based Payment Award PSU Valuation Assumptions [Table Text Block] | The Monte Carlo inputs used in the model to estimate fair value at the measurement date and resulting values for these performance unit awards are as follows:
Monte Carlo award inputs: | Fiscal 2024 |  |  |  |
Compensation Peer Group: |  |  |  |  |
Volatility | 25.6 | % |  |  |  |
Risk free interest rate | 4.48 | % |  |  |  |
Annual dividend based on most recent quarterly dividend | $2.08 |  |  |  |
Dividend yield | 1.23 | % |  |  |  |
Beginning average percentile rank for TSR | 74.0 | % |  |  |  |

X
- Definition us-gaap_ScheduleOfShareBasedPaymentAwardRSUValuationAssumptionsTableTextBlock [Table Text Block] + References No definition available. + Details
Name: | jkhy_ScheduleOfShareBasedPaymentAwardRSUValuationAssumptionsTableTextBlockTableTextBlock
Namespace Prefix: | jkhy_
Data Type: | dtr-types1:textBlockItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition Tabular disclosure of the changes in outstanding nonvested restricted stock units. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
Name: | us-gaap_ScheduleOfNonvestedRestrictedStockUnitsActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration