Derivative Instruments And Hedging Activities , Derivative Contracts (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2014
Interest Rate Swap [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Notional Amount of Derivatives	$ 20.0
Interest Rate Cap [Member] | Derivative Maturing 2015 [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Notional Amount of Derivatives	152.4
Derivative, Type	Cap
Derivative, Purpose	Cap Floating Rate
Derivative, Effective Date	Apr. 01, 2012
Derivative, Maturity Date	Apr. 01, 2015
Derivative, Based on	3 Month LIBOR
Derivative, Variable Rate	0.327%
Derivative, Fixed Rate	11.265%
Derivative, Spread on Variable Rate	0.00%
Interest Rate Cap [Member] | Derivative Maturing 2016 [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Notional Amount of Derivatives	$ 10.0
Derivative, Type	Cap
Derivative, Purpose	Cap Floating Rate
Derivative, Effective Date	Oct. 03, 2011
Derivative, Maturity Date	Oct. 03, 2016
Derivative, Based on	3 Month LIBOR
Derivative, Variable Rate	0.327%
Derivative, Fixed Rate	11.02%
Derivative, Spread on Variable Rate	0.00%