Quarterly report pursuant to Section 13 or 15(d)

Income Taxes (Narrative) (Details)

v3.22.2
Income Taxes (Narrative) (Details) - USD ($)
$ in Millions
 9 Months Ended
Jun. 30, 2022
Sep. 30, 2021
Income Tax Expense (Benefit) [Line Items]    
Corporate income tax rate 21.00%  
Minimum [Member]    
Income Tax Expense (Benefit) [Line Items]    
Tax credit carryforward, expiration date Dec. 31, 2038  
Operating loss carryforwards, expiration date Dec. 31, 2022  
Maximum [Member]    
Income Tax Expense (Benefit) [Line Items]    
Tax credit carryforward, expiration date Dec. 31, 2041  
Operating loss carryforwards, expiration date Dec. 31, 2040  
Domestic [Member]    
Income Tax Expense (Benefit) [Line Items]    
Operating loss carryforwards   $ 38.8
Domestic [Member] | 2022 to 2040 [Member]    
Income Tax Expense (Benefit) [Line Items]    
Operating loss carryforwards   29.7
Domestic [Member] | Indefinite [Member]    
Income Tax Expense (Benefit) [Line Items]    
Operating loss carryforwards   9.1
Domestic [Member] | 2040 to 2042 [Member]    
Income Tax Expense (Benefit) [Line Items]    
Tax credit carryforward   4.4
State [Member]    
Income Tax Expense (Benefit) [Line Items]    
Operating loss carryforwards   25.0
State [Member] | 2022 to 2040 [Member]    
Income Tax Expense (Benefit) [Line Items]    
Operating loss carryforwards   22.6
State [Member] | Indefinite [Member]    
Income Tax Expense (Benefit) [Line Items]    
Operating loss carryforwards   2.4
Foreign [Member] | Indefinite [Member]    
Income Tax Expense (Benefit) [Line Items]    
Operating loss carryforwards   $ 63.5