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Stock-based Compensation Plans (Narrative) (Details)
$ / shares in Units, $ in Millions
3 Months Ended 9 Months Ended
Nov. 29, 2022
Jun. 30, 2023
USD ($)
$ / shares
shares
Mar. 31, 2023
$ / shares
shares
Dec. 31, 2022
$ / shares
shares
Jun. 30, 2022
USD ($)
shares
Jun. 30, 2023
USD ($)
$ / shares
shares
Jun. 30, 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 29 days            
Share-based Payment Arrangement, Expense | $   $ 2.7     $ 2.5 $ 8.8 $ 7.6
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount | $   $ 11.9       $ 11.9  
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount   249,933     892,662 1,156,428 750,343
Share-Based Payment Arrangement, Shares Withheld for Tax Withholding Obligation   1,589       138,525  
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   $ 13.93 $ 13.42 $ 11.41      
Granted, shares   7,176 8,367 267,093      
Share-based compensation liability | $   $ 3.5       $ 3.5  
Share Based Compensation Arrangement By Share Based Payment Award, Fair Value | $ / shares   $ 16.23       $ 16.23  
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   2,098       218,121  
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   2,896       64,847  
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