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v3.23.1

Stock-based Compensation Plans (Narrative) (Details) $ / shares in Units, $ in Millions |  | 3 Months Ended | 6 Months Ended
--- | --- | --- | ---
Nov. 29, 2022 | Mar. 31, 2023 USD ($) $ / shares shares | Dec. 31, 2022 $ / shares shares | Mar. 31, 2022 USD ($) shares | Mar. 31, 2023 USD ($) $ / shares shares | Mar. 31, 2022 USD ($) shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate | 2.20% |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate | 4.20% |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term | 2 years 9 months 18 days |  |  |  |  |
Share-based Payment Arrangement, Expense | $ |  | $ 3.4 |  | $ 2.5 | $ 6.2 | $ 5.1
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount | $ |  | $ 14.9 |  |  | $ 14.9 |
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount |  | 998,607 |  | 944,631 | 1,269,484 | 563,299
Share-Based Payment Arrangement, Shares Withheld for Tax Withholding Obligation |  | 1,633 |  |  | 136,936 |
Phantom Share Units (PSUs) [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value | $ / shares |  | $ 13.42 | $ 11.41 |  |  |
Granted, shares |  | 8,367 | 267,093 |  |  |
Share-based compensation liability | $ |  | $ 2.5 |  |  | $ 2.5 |
Share Based Compensation Arrangement By Share Based Payment Award, Fair Value | $ / shares |  | $ 13.94 |  |  | $ 13.94 |
Performance Shares [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value | $ / shares |  |  | $ 11.41 |  |  |
Granted, shares |  |  | 166,284 |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Requisite Service Period |  |  |  |  | 3 years |
Shares Issued, Shares, Share-Based Payment Arrangement, before Forfeiture |  | 0 |  |  | 282,472 |
Restricted Stock Units (RSUs) [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value | $ / shares |  | $ 13.89 | $ 11.39 |  |  |
Granted, shares |  | 82,769 | 228,692 |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period |  | 87,975 |  |  | 216,023 |
Market Based Performance Shares |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value | $ / shares |  |  | $ 15.08 |  |  |
Granted, shares |  |  | 166,284 |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Requisite Service Period |  |  |  |  | 3 years |
Share-based Payment Arrangement, Option [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate | 1.80% |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value | $ / shares |  |  | $ 3.31 |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate | 3.89% |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term | 6 years |  |  |  |  |
Granted, shares |  |  | 573,279 |  |  |
Shares Issued, Shares, Share-Based Payment Arrangement, before Forfeiture |  | 24,217 |  |  | 61,951 |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period |  |  |  |  | 3 years |
Minimum [Member] | Performance Shares [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Performance Factors |  |  |  |  | 0 |
Minimum [Member] | Market Based Performance Shares |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Performance Factors |  |  |  |  | 0 |
Maximum [Member] | Performance Shares [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Performance Factors |  |  |  |  | 2 |
Maximum [Member] | Market Based Performance Shares |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Performance Factors |  |  |  |  | 2 |

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- Definition Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + 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 weighted average fair value at grant date for nonvested equity-based awards issued 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 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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