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Property and Equipment (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Land $ 24,987 $ 25,003
Land improvements 25,411 25,385
Buildings 143,733 142,350
Leasehold improvements 28,962 24,037
Equipment and furniture 316,064 293,044
Aircraft and equipment 27,246 45,179
Construction in progress 12,199 18,099
Property and equipment, total 578,602 573,097
Less accumulated depreciation 286,927 272,586
Property and equipment, net 291,675 300,511
Capital Expenditures Incurred but Not yet Paid 523 2,179
Capital Lease Obligations Incurred $ 16,119 $ 29,131
Land Improvements [Member]
    
Estimated Useful Life 5 - 20 years  
Building [Member]
    
Estimated Useful Life 20 - 30 years  
Leasehold Improvements [Member]
    
Estimated Useful Life 5 - 20 years  
Equipment [Member]
    
Estimated Useful Life 3 - 10 years  
Flight Equipment [Member]
    
Estimated Useful Life 5 - 15 years