Condensed Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Cash flow from operating activities:
Net Income (Loss) Attributable to Parent	$ 65,931	$ 45,370
Depreciation and amortization	52,048	50,741
Stock-based compensation	8,103	8,236
Excess Tax Benefit (Tax Deficiency) from Share-based Compensation, Operating Activities	(3,830)	0
Provision for losses on receivables	(196)	738
Deferred income taxes	8,262	(9,384)
Other Noncash (Income) Expense	(333)	604
Changes in operating assets and liabilities	21,752	59,661
Net cash provided by (used in) operating activities:	151,737	155,966
Cash flow from investing activities:
Payments to Acquire Businesses, Net of Cash Acquired	(74,731)	0
Payments to Acquire Marketable Securities	(90,525)	(53,647)
Purchases of property and equipment	(50,101)	(38,163)
Proceeds from sale of assets	1,670	0
Proceeds from Collection of Notes Receivable	659	0
Net cash used in investing activities	(213,028)	(91,810)
Cash flow from financing activities:
Proceeds from issuance of common stock	12,054	8,263
Payments for Repurchase of Common Stock	(150,032)	0
Excess Tax Benefit (Tax Deficiency) from Share-based Compensation, Financing Activities	3,830	0
Borrowing under credit agreement/facility	595,000	168,000
Repayments under credit agreements/facilities	415,000	183,750
Payments of Financing Costs	(1,231)	0
Repayments under other debt	0	(842)
Net cash (used in) provided by financing activities	44,621	(8,329)
Effect of exchange rate changes on cash and cash equivalents	1,704	(14,992)
Net increase (decrease) in cash and cash equivalents	(14,966)	40,835
Cash and cash equivalents at beginning of period	213,579	89,056
Cash and cash equivalents at end of period	198,613	129,891
Supplemental disclosures of cash flow information
Interest	7,261	8,782
Income taxes, net of refunds	$ 30,369	$ 7,038