Debt (Schedule of Interest Rate Swaps and Details) (Details) - USD ($)	1 Months Ended		9 Months Ended
	Jul. 31, 2016	Jun. 30, 2016	Sep. 29, 2017	Sep. 30, 2016
Interest Rate Swap 4 [Member]
Derivative [Line Items]
Derivative, Term of Contract	1 year
Derivative Asset, Notional Amount	$ 250,000,000
Interest Rate Swap 3 [Member]
Derivative [Line Items]
Derivative, Term of Contract		3 years
Derivative Liability, Notional Amount		$ 200,000,000
Notional Amount			$ 200,000,000
Pay Fixed Rate			1.1325%
Receive Current Floating Rate			1.2367%
Fair Value, Asset			$ 3,054,000
Interest Rate Swap [Member]
Derivative [Line Items]
Gain (Loss) Recognized In Income Ineffective Portion			0	$ 0
Reduction (Increase) to Interest Expense			400,000	$ (50,000)
Gain expected to be reclassified into earnings within the next twelve months			$ 600,000