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Income Taxes - Additional Information (Details)
$ in Millions
9 Months Ended
Sep. 30, 2019
USD ($)
Income Tax [Line Items]  
Unrecognized tax benefits $ 0.3
Deferred tax assets with valuation allowance 0.2
Unrecognized tax benefits against effective tax rate $ 0.1
Earliest Tax Year  
Income Tax [Line Items]  
Examination by tax authorities 2014
Latest Tax Year  
Income Tax [Line Items]  
Examination by tax authorities 2018