Derivative Instruments and Hedging Activities (Details 2) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES [Abstract]
Derivative Assets, Fair Value, Gross Assets	$ 38,551	$ 96
Gross Amount of Eligible Offsetting Recognized Derivative Liabilities	(71)	(96)
Derivative Asset, Fair Value, Amount Not Offset Against Collateral	38,480	0
Derivative Asset, Not Offset, Policy Election Deduction	(23,379)	0
Cash Collateral Received	(6,387)	0
Derivative Asset, Fair Value, Amount Offset Against Collateral	8,714	0
Derivative Liability, Fair Value, Gross Liability	(34,358)	(178)
Gross Amount of Eligible Offsetting Recognized Derivative Assets	71	96
Derivative Liability, Fair Value, Amount Not Offset Against Collateral	(34,287)	(82)
Derivative Liability, Not Offset, Policy Election Deduction	23,379	0
Cash Collateral Paid	906	0
Derivative Liability, Fair Value, Amount Offset Against Collateral	$ (10,002)	$ (82)