betfred sportsbook|Welcome_Electric Power Facilities

betfred sportsbook review	Jun. 30, 2016	Dec. 31, 2015
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 1,953.9	$ 1,970.3
Allowance for depreciation and depletion	(960.8)	(911.3)
Property, plant and equipment, net	993.1	1,059.0
Land Rights And Mineral Rights [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	500.5	500.5
Office And Information Technology [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	64.2	71.0
betfred sportsbookBuildings [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	60.5	60.4
Mining Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	596.8	594.0
Processing Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	519.3	516.8
Electric Power Facilities [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	49.4	46.4
Land Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	24.8	24.8
Asset Retirement Obligation [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	67.1	87.9
Other [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	28.0	28.2
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 43.3	$ 40.3