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Employee Benefit Plans (Details) (USD $)
In Millions, except Share data, unless otherwise specified
3 Months Ended 9 Months Ended
Mar. 31, 2014
Dec. 31, 2013
Performance Based Unit [Member]
November Two Thousand Thirteen Grant [Member]
Jun. 30, 2014
Performance Shares [Member]
November Two Thousand Thirteen Grant [Member]
Jun. 30, 2014
Performance Shares [Member]
November Two Thousand Thirteen Grant [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock Option Grant Recipients 500      
Allocated Share-based Compensation Expense     $ 1.3 $ 3.2
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period   350,000    
Share Based Compensation Arrangement By Share Based Payment Award Percentage Of Units Vesting Upon Achieving Performance Criteria Range Low   0.00%    
Share Based Compensation Arrangement By Share Based Payment Award Percentage Of Units Vesting Upon Achieving Performance Criteria Range High   200.00%    
Deferred Compensation Share-based Arrangements, Liability, Current and Noncurrent     $ 3.2 $ 3.2
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures 3,795,333      
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price $ 23.86