Discontinued Operations (Summarized (Loss) Income from Discontinued Operations, Net Of Tax) (Details 1) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Discontinued Operations [Abstract]
Operating revenues	$ 0	$ 17,908	$ 3,461	$ 41,079
Operating costs and expenses	0	(22,068)	(5,477)	(49,412)
Loss from discontinued operations	0	(4,160)	(2,016)	(8,333)
Benefit from income taxes	0	(1,370)	(676)	(2,759)
Net Loss from Discontinued Operations	0	(2,790)	(1,340)	(5,574)
Gain (loss) on sales of discontinued operations	0	29,541	(70)	26,459
Provision (benefit) for income taxes on sales of discontinued operations	0	11,000	(24)	(12,454)
Income (Loss) from Discontinued Operations, Net of Tax	$ 0	$ 15,751	$ (1,386)	$ 33,339