Derivative Instruments (Set Forth Terms Of Interest Rate Swap And Cap Derivative Instruments) (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Interest Rate Swap [Member]
Derivative [Line Items]
Notional amount	$ 52,413	$ 105,360
Other current liabilities	156	2,153
Interest Rate Cap [Member]
Derivative [Line Items]
Notional amount	7,500	7,500
Other assets	$ 1
Other current liabilities		$ 24