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Acquisitions (Details 2) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Business Combinations [Abstract]      
Proceeds from Sale of Business $ 0.0 $ 4.0 $ 0.0
Gain (Loss) on Disposition of Business   $ 1.0