Derivatives and Hedging Activities Other Comprehensive Income (Details) (Parent Company [Member], USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Parent Company [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	$ 108	$ (26,054)
Amount of (Loss) or Gain Recognized in OCI on Derivative (Effective Portion)	(9,096)	10,096
Other Comprehensive Loss, Reclassification Adjustment from AOCI on Derivatives, Net of Tax	9,399	12,098
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interest	(15)	(739)
Other Comprehensive (Loss) Income , Net of Tax, Portion Attributable to Parent	288	21,455
Ending Balance	$ 396	$ (4,599)