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Employee Benefits - Schedule of Share-based Compensation, Stock Options, Activity (Details) - $ / shares | Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2020
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Outstanding at beginning of year |  |  |  |
Defined Contribution Plan Disclosure [Line Items] |  |  |  |
Weighted Average Price | $ 36.56 |  | $ 33.77 | $ 33.22
Number | 104,000 | 89,500 | 60,500 |
Granted |  |  |  |
Defined Contribution Plan Disclosure [Line Items] |  |  |  |
Weighted Average Price | $ 38.58 | $ 53.82 | $ 34.91 |
Number | 44,000 | 14,500 | 29,000 |
Outstanding at year-end |  |  |  |
Defined Contribution Plan Disclosure [Line Items] |  |  |  |
Weighted Average Price | $ 39.63 | $ 36.56 | $ 33.77 |
Number | 148,000 | 104,000 | 89,500 |
Options exercisable at year-end |  |  |  |
Defined Contribution Plan Disclosure [Line Items] |  |  |  |
Weighted Average Price | $ 33.89 | $ 31.92 | $ 29.79 |
Number | 63,700 | 44,900 | 29,000 |

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- 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 Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 70 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480794/715-70-50-1 + Details
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- Definition The number of shares reserved for issuance pertaining to the outstanding stock options as of the balance sheet date for all option plans in the customized range of exercise prices. + 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)(1)(i)-(ii) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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