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Compensation Plans: Stock Based (Details) $ in Millions |  |  | 1 Months Ended | 3 Months Ended | 6 Months Ended
--- | --- | --- | --- | --- | ---
Aug. 03, 2022 | Jun. 30, 2022 USD ($) shares | Aug. 03, 2022 USD ($) shares | Jun. 30, 2022 USD ($) shares | Jun. 30, 2021 USD ($) | Jun. 30, 2022 USD ($) shares | Jun. 30, 2021 USD ($)
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |  |  |  |
Shares available for grant |  | 4,900,000 |  | 4,900,000 |  | 4,900,000 |
Performance Shares (PSUs) |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |  |  |  |
Award Vesting Period |  | 3 years |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Multiplier Assumed, 2019 PSU TSR Cap |  | 1 |  | 1 |  | 1 |
Stock-based compensation expense | $ |  |  |  | $ 0.7 | $ 1.3 | $ 1.4 | $ 4.5
Unrecognized stock based compensation expense | $ |  | $ 0.0 |  | $ 0.0 |  | $ 0.0 |
Performance Shares (PSUs) | Subsequent Event |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |  |  |  |
Award Vesting Period | 3 years |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period |  |  | 276,010 |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Granted in Period, Total Fair Value | $ |  |  | $ 7.4 |  |  |  |
Performance Shares (PSUs) | Minimum |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |  |  |  |
Multiplier applied to PSU awards at settlement |  | 0 |  | 0 |  | 0 |
Performance Shares (PSUs) | Maximum |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |  |  |  |
Multiplier applied to PSU awards at settlement |  | 2 |  | 2 |  | 2 |
Restricted Stock Units (RSUs) |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |  |  |  |
Stock-based compensation expense | $ |  |  |  | $ 3.2 | $ 2.1 | $ 6.5 | $ 4.3
Unrecognized stock based compensation expense | $ |  | $ 13.7 |  | $ 13.7 |  | $ 13.7 |
Number of shares represented by each RSU |  | 1 |  | 1 |  | 1 |
Restricted Stock Units (RSUs) | Subsequent Event |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |  |  |  |
Award Vesting Period | 3 years |  |  |  |  |  |
Shares Withheld for Tax Withholding Obligation |  |  | 283,800 |  |  |  |
Shares Issued in Period |  |  | 634,575 |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period |  |  | 526,776 |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Granted in Period, Total Fair Value | $ |  |  | $ 18.0 |  |  |  |

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- Definition The multiplier applied to the PSU awards at settlement to determine the number of shares of the Company’s common stock to be issued at the completion of the performance period. + References No definition available. + Details
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- Definition Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Multiplier Assumed, 2019 PSU TSR Cap + References No definition available. + Details
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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://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(01) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable. + 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 https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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