Derivative Instruments (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Apr. 01, 2017	Dec. 31, 2016
Derivative [Line Items]
Net derivative losses on closed hedge instruments in AOCI that will be realized in earnings when the hedged items impact earnings	$ 3.6	$ 7.5
Net AOCI hedging component	(14.4)
Net current deferred losses expected to be realized in the next twelve months	(6.0)
Receive-Variable/Pay-Fixed Interest Rate Swap
Derivative [Line Items]
Notional Amount (in US Dollars)	$ 100.0