Debt (Schedule of Interest Rate Swaps and Details) (Details) - USD ($)	1 Months Ended		3 Months Ended
	Jul. 31, 2016	Jun. 30, 2016	Mar. 31, 2017	Apr. 01, 2016
Derivative [Line Items]
Interest Expense			$ 28,893,000	$ 27,617,000
Interest Rate Swap 4 [Member]
Derivative [Line Items]
Derivative, Term of Contract	1 year
Derivative Asset, Notional Amount	$ 250,000,000
Notional Amount			$ 250,000,000
Pay Fixed Rate			0.615%
Receive Current Floating Rate			0.98%
Fair Value, Asset			$ 244,000
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%
Fair Value, Asset			$ 3,536,000
Interest Rate Swap [Member]
Derivative [Line Items]
Gain (Loss) Recognized In Income Ineffective Portion			0	$ 0
Interest Expense			$ 100,000