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Share-Based Compensation - Equity-Settled Plans, Narrative (Details) - $ / shares |  |  |  |  |  | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Nov. 12, 2020 | Nov. 15, 2018 | Feb. 02, 2018 | Sep. 27, 2010 | Nov. 21, 2006 | Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Company's common stock purchased in aggregate (in shares) |  |  |  |  |  | 178,000 | 496,000 | 527,000 | 730,000
2007 Long-Term Inventive Plan |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Maximum common stock issued under Long-Term Incentive Plan (in shares) |  |  |  |  | 1,400,000 |  |  |  |
Contractual term of stock options granted |  |  |  |  | 10 years |  |  |  |
Company's common stock purchased in aggregate (in shares) |  |  |  |  |  | 9,700 |  |  |
2007 Long-Term Inventive Plan | Minimum |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Right to purchase common stock, minimum price (dollars per share) |  |  |  |  | $ 9.31 |  |  |  |
Vesting period |  |  |  |  | 1 year |  |  |  |
2007 Long-Term Inventive Plan | Maximum |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Right to purchase common stock, minimum price (dollars per share) |  |  |  |  | $ 10.50 |  |  |  |
Vesting period |  |  |  |  | 3 years |  |  |  |
2010 Long-Term Incentive Plan |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Maximum common stock issued under Long-Term Incentive Plan (in shares) |  |  | 475,000 | 1,000,000.0 |  |  |  |  |
Contractual term of stock options granted |  |  |  | 10 years |  |  |  |  |
Company's common stock purchased in aggregate (in shares) |  |  |  |  |  | 27,000 |  |  |
2010 Long-Term Incentive Plan | Minimum |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Right to purchase common stock, minimum price (dollars per share) |  |  |  | $ 9.31 |  |  |  |  |
Vesting period |  |  |  | 1 year |  |  |  |  |
2010 Long-Term Incentive Plan | Maximum |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Right to purchase common stock, minimum price (dollars per share) |  |  |  | $ 20.09 |  |  |  |  |
Vesting period |  |  |  | 4 years |  |  |  |  |
2017 Long-Term Incentive Plan |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Maximum common stock issued under Long-Term Incentive Plan (in shares) |  |  |  |  |  | 2,900,000 |  |  |
Vesting period |  |  |  |  |  | 3 years |  |  |
Company's common stock purchased in aggregate (in shares) |  |  |  |  |  | 100,000 |  |  |
Number of additional shares authorized | 650,000 | 715,000 | 425,000 |  |  |  |  |  |
Exercise price of outstanding stock options (dollars per share) |  |  |  |  |  | $ 4.44 |  |  |
2017 Long Term Incentive Plan Excluding 2010 Long Term Incentive Plan |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Maximum common stock issued under Long-Term Incentive Plan (in shares) |  |  | 2,440,000 |  |  |  |  |  |

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- Definition Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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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 No definition available. + Details
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- Definition Number of additional shares authorized for issuance under share-based payment arrangement. + References No definition available. + Details
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- Definition Number of shares authorized for issuance under share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Number of options outstanding, including both vested and non-vested options. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Weighted average grant-date fair value of non-vested options outstanding. + References No definition available. + Details
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