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Fair Value Measurements Fair Value Disclosures (Details) - USD ($)
$ in Millions
Jul. 01, 2017
Dec. 31, 2016
Jun. 18, 2016
Fair Value Disclosures [Abstract]      
Debt, Carrying Value $ 804.8 $ 820.2 $ 807.4
Debt, Fair Value $ 822.8 $ 827.6 $ 849.3