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Income Taxes (Details 2) (USD $)
In Millions, unless otherwise specified
Jun. 30, 2014
Alternative minimum tax credit
  
Net operating loss carryforward  
Alternative minimum tax credit that can be carried forward $ 1.4
Federal
  
Net operating loss carryforward  
Net operating loss carryforward 84.2
Federal | 2030
  
Net operating loss carryforward  
Net operating loss carryforward 25.3
Federal | 2031
  
Net operating loss carryforward  
Net operating loss carryforward 31.4
Federal | 2032
  
Net operating loss carryforward  
Net operating loss carryforward 8.6
Federal | 2033
  
Net operating loss carryforward  
Net operating loss carryforward 15.3
Federal | 2034
  
Net operating loss carryforward  
Net operating loss carryforward 3.6
State
  
Net operating loss carryforward  
Net operating loss carryforward 128.5
State | 2021
  
Net operating loss carryforward  
Net operating loss carryforward 29.4
State | 2025
  
Net operating loss carryforward  
Net operating loss carryforward 95.7
State | 2026
  
Net operating loss carryforward  
Net operating loss carryforward $ 3.4