Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	6 Months Ended
Dec. 31, 2011	Dec. 31, 2010
Cash flows from operating activities:
Net income	$ 10,820	$ 7,279
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	13,941	15,411
Gain on sale of equipment	(2,380)	(1,049)
Stock based compensation	728	1,338
Deferred income taxes	3,583	(133)
Provision for doubtful accounts	10	128
Changes in assets and liabilities:
Trade receivables	3,855	6,754
Income taxes	(4,033)	(1,662)
Tires in service	(477)	(1,282)
Prepaid expenses and other current assets	(116)	(1,629)
Other assets	(630)	(239)
Accounts payable and accrued expenses	677	(2,207)
Net cash provided by operating activities	25,978	22,709
Cash flows from investing activities:
Purchase of property and equipment	(88,446)	(34,342)
Proceeds on sale of property and equipment	44,012	21,022
Purchase of businesses, net of cash	(34,300)
Purchase of available for sale securities	(4,661)
Net cash used in investing activities	(83,395)	(13,320)
Cash flows from financing activities:
Borrowings (payments) on long-term debt	34,531	(204)
Dividends paid	(445)
Principal payments under capital lease obligations	(175)	(16,319)
Proceeds from issuance of stock	34	98
Net cash provided by/(used in) financing activities	33,945	(16,425)
Effect of exchange rates on cash and cash equivalents	(783)	(666)
Decrease in cash and cash equivalents	(24,255)	(7,702)
Cash and cash equivalents at beginning of period	25,673	18,844
Cash and cash equivalents at end of period	1,418	11,142
Supplemental disclosure of cash flow information:
Interest paid	160	1,078
Income taxes paid	7,193	1,917
Change in dividends payable	$ 445

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Includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Entity may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Compensating balance arrangements that do not legally restrict the withdrawal or usage of cash amounts may be reported as Cash and Cash Equivalents, while legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or company statements of intention with regard to particular deposits are not generally reported as cash and cash equivalents. Includes cash and cash equivalents associated with the entity's continuing operations. Excludes cash and cash equivalents associated with the disposal group (and discontinued operation).