ACCUMULATED OTHER COMPREHENSIVE LOSS 2 (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended			9 Months Ended
	Sep. 30, 2013		Sep. 30, 2012	Sep. 30, 2013		Sep. 30, 2012
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Interest Charges	$ (2,629)		$ (3,872)	$ (8,379)		$ (11,832)
Other Income and Expense	764		1,703	3,024		4,482
Income Before Income Taxes	1,420		781	63,794		61,920
Income Taxes	(471)		(258)	(23,511)		(23,122)
Net Income	949		523	40,283		38,798
Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Income Before Income Taxes	12			(792)
Income Taxes	(5)	[1]		324	[1]
Net Income	7			(468)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Unrealized Gain (Loss) on Derivatives-Other [Member]
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Interest Charges	12			36
Reclassification out of Accumulated Other Comprehensive Income [Member] | Unrealized Gain (Loss) on Available-for-Sale Securities [Member]
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Other Income and Expense	$ 0			$ (828)

[1] Determined using a combined statutory tax rate of 41% .