Discontinued Operations (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Gain (Loss) on Sale of Property Plant Equipment	$ 67,480,000	$ 282,006,000	$ 45,673,000
Benefit Obligations Assumed By Murray Energy	2,050,656,000
Discontinued Operations [Member]
Gain (Loss) on Sale of Property Plant Equipment	1,035,346,000
Proceeds from Sale of Property, Plant, and Equipment	825,285,000
Restructuring Costs	$ 24,715,000