Condensed Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Cash flow from operating activities:
Net Income (Loss) Attributable to Parent	$ 45,370	$ 50,357
Adjustments to reconcile net income to net cash provided by (used in) operating activities:	155,966	(39,957)
Depreciation and amortization	50,741	47,846
Stock-based compensation	8,236	7,421
Provision for losses on receivables	738	1,029
Deferred income taxes	9,384	15,462
Changes in operating assets and liabilities	(60,265)	131,148
Cash flow from investing activities:
Increase (Decrease) In Marketable Securities	(53,647)	13,058
Purchases of property and equipment	(38,163)	(38,727)
Proceeds from sale of assets	0	98
Net cash used in investing activities	(91,810)	(25,571)
Cash flow from financing activities:
Proceeds from issuance of common stock	8,263	4,493
Borrowing under lines of credit	168,000	195,000
Repayments under lines of credit	(183,750)	(119,500)
Repayments under other debt	(842)	(1,696)
Purchase of non-controlling interests	0	(1,550)
Net cash (used in) provided by financing activities	(8,329)	76,747
Effect of exchange rate changes on cash and cash equivalents	(14,992)	13,035
Net increase (decrease) in cash and cash equivalents	40,835	24,254
Cash and cash equivalents at beginning of period	89,056	95,170
Cash and cash equivalents at end of period	129,891	119,424
Supplemental disclosures of cash flow information
Interest	8,782	12,014
Income taxes, net of refunds	$ 7,038	$ 26,060