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Litigation and Contingencies (Additional Information) (Details) - Licensing agreements [Member] - USD ($)
$ in Millions
3 Months Ended 8 Months Ended 9 Months Ended
Sep. 30, 2017
Sep. 10, 2016
Sep. 10, 2016
Sep. 30, 2017
Long-term Purchase Commitment [Line Items]        
Royalty expense, licensing agreements $ 0.7 $ 0.5 $ 1.4 $ 1.8
Advertising expense, licensing agreements $ 0.9 $ 0.7 $ 2.3 $ 2.5