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Income Taxes Operating Loss Carryforwards (Details) - USD ($)
$ in Millions
Dec. 31, 2019
Sep. 30, 2016
Operating Loss Carryforwards [Line Items]    
Operating Loss Carryforwards $ 7.1  
Deferred Tax Assets, Tax Credit Carryforwards, Foreign 5.1  
Deferred Tax Assets, Valuation Allowance 8.5 $ 3.6
State and Local Jurisdiction [Member]    
Operating Loss Carryforwards [Line Items]    
Operating Loss Carryforwards 5.6  
Inland Revenue, Singapore (IRAS) [Member]    
Operating Loss Carryforwards [Line Items]    
Operating Loss Carryforwards $ 0.2