Quarterly report pursuant to Section 13 or 15(d)

Income Taxes (Narrative) (Details)

v3.22.0.1
Income Taxes (Narrative) (Details) - USD ($)
$ in Millions
 3 Months Ended
Dec. 31, 2021
Sep. 30, 2021
Income Tax Expense (Benefit) [Line Items]    
Corporate income tax rate 21.00%  
Minimum [Member]    
Income Tax Expense (Benefit) [Line Items]    
Tax cedit carryforward, expiration date Dec. 31, 2038  
Operating loss carryforwards, expiration date Dec. 31, 2022  
Maximum [Member]    
Income Tax Expense (Benefit) [Line Items]    
Tax cedit 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   $ 38.6
Domestic [Member] | 2022 to 2040 [Member]    
Income Tax Expense (Benefit) [Line Items]    
Operating loss carryforwards   29.5
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   4.2
State [Member]    
Income Tax Expense (Benefit) [Line Items]    
Operating loss carryforwards   24.9
State [Member] | 2022 to 2040 [Member]    
Income Tax Expense (Benefit) [Line Items]    
Operating loss carryforwards   22.5
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