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Income Taxes (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Sep. 30, 2021
Sep. 30, 2021
Mar. 31, 2021
Income Tax Disclosure [Line Items]      
Net operating loss carryforwards, no expiration $ 45.0 $ 45.0  
Federal and State [Member]      
Income Tax Disclosure [Line Items]      
Deferred tax expenses 0.2 0.3  
Federal [Member]      
Income Tax Disclosure [Line Items]      
Deferred tax liability 2.1 2.1  
Net NOL carryforwards 35.2 35.2 $ 266.3
Net operating loss carryforwards     125.1
Net operating loss carryforwards, no expiration     141.2
State [Member]      
Income Tax Disclosure [Line Items]      
Deferred tax liability 1.4 1.4  
Net NOL carryforwards $ 28.4 $ 28.4 152.3
Net operating loss carryforwards     114.4
Net operating loss carryforwards, no expiration     $ 37.9