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Comprehensive Income - Additional Information (Details) - USD ($)
$ in Millions
9 Months Ended
Jan. 01, 2019
Sep. 30, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
Impact of adoption of new accounting standards (see Note 19)   $ (6.6)
ASU 2018-02    
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
Impact of adoption of new accounting standards (see Note 19) $ 6.6