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Litigation and Contingencies (Additional Information) (Details) - Licensing agreements [Member] - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2018
Apr. 01, 2017
Long-term Purchase Commitment [Line Items]    
Royalty expense, licensing agreements $ 0.5 $ 0.6
Advertising expense, licensing agreements $ 0.8 $ 0.9