CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) (USD $) In Thousands, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2013		Sep. 30, 2012		Sep. 30, 2013		Sep. 30, 2012
Statement of Other Comprehensive Income [Abstract]
Net (Loss) Income	$ (1,421)		$ 2,013		$ 42,333		$ 66,422
Other Comprehensive Income (Loss), Net of Tax:
Unrealized (Loss) Gain on Available-for-Sale Securities	221	[1]	205	[1]	(76)	[1]	420	[1]
Unrealized Gain (Loss) on Derivatives - Other	66	[1]	67	[1]	198	[1]	(158)	[1]
Other Comprehensive (Loss) Income of Affiliated Companies	(25)	[1]	364	[1]	5,011	[1]	(1,598)	[1]
Other Comprehensive Income (Loss) - Net of Tax	262	[1]	636	[1]	5,133	[1]	(1,336)	[1]
Comprehensive (Loss) Income	$ (1,159)		$ 2,649		$ 47,466		$ 65,086
Combined statutory tax rate	41.00%		41.00%		41.00%		41.00%

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