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Consolidated Statements of Cash Flows (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2010
Net income $ 25,536 $ 15,262 $ 3,926
Depreciation and amortization 55,777 58,304 59,543
(Gain) / loss on sale of equipment (8,221) (1,149) 590
Deferred income taxes 6,627 (1,053) (1,514)
Provision for doubtful accounts 10 196 263
Stock based compensation expense 2,483 2,382 3,364
Gain from sale of majority interest in subsidiary   (4,142)  
Trade receivables (3,124) (3,141) (8,249)
Income tax payable (410) (1,077) 2,096
Tires in service 5,205 (2,634) (920)
Prepaid expenses and other current assets 2,631 (1,007) 5,828
Other assets (910) (440) 502
Accounts payable and accrued expenses (8,510) 8,583 10,751
Net cash provided by operating activities 77,094 70,084 76,180
Purchase of property and equipment (95,457) (32,152) (39,429)
Proceeds on sale of property and equipment 155,528 47,689 38,731
Proceeds from sale of majority interest in subsidiary   5,000  
Purchase of available for sale securities (4,661)    
Sale of securities 4,922    
Purchase of businesses (41,856)    
Net cash provided by ( used in) investing activities 18,476 20,537 (698)
Proceeds from issuance of common stock 548 521  
Payments on long-term debt   (380) (6,600)
Dividends paid (1,337)    
Principal payments on capital lease obligations (86,115) (86,690) (48,408)
Net cash used in financing activities (86,904) (86,549) (55,008)
Effect of exchange rates on cash and cash equivalents (693) 340 (76)
Increase in cash and cash equivalents 7,973 4,412 20,398
Cash and cash equivalents at beginning of year 25,673 21,261 863
Cash and cash equivalents at end of year 33,646 25,673 21,261
Interest paid 5,683 8,219 10,178
Income taxes paid 10,692 14,670 6,648
Obligations incurred under capital lease $ 168,983 $ 30,289 $ 31,470