Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2010
CASH FLOWS FROM OPERATING ACTIVITIES
Net income including portion attributable to noncontrolling interest in earnings of joint venture	$ 168,211	$ 145,152	$ 107,258
Reconciliation of net income including portion attributable to noncontrolling interest to net cash provided by operating activities:
Depreciation and amortization	55,962	56,067	53,039
Non-cash interest expense	12,024	11,235	10,499
Amortization of deferred financing costs	2,237	2,785	2,356
Stock-based compensation expense	15,499	17,915	30,750
Deferred income tax expense (benefit)	10,653	7,587	(4,703)
Undistributed earnings of unconsolidated joint venture	(1,728)	(1,755)
Other	1,322
Changes in operating assets and liabilities, net of effect of business acquisitions:
Accounts receivable, net	(33,919)	(23,624)	(49,291)
Prepaid expenses and other assets	(11,064)	(18,391)	(11,628)
Accounts payable and other accrued expenses	41,879	(8,394)	49,910
Accrued compensation and benefits	(4,532)	13,085	9,423
Income taxes payable and receivable	930	8,590	3,288
Deferred rent	(2,878)	809	(145)
Supplemental retirement savings plan obligations and other long-term liabilities	12,092	14,903	8,588
Net cash provided by operating activities	266,688	225,964	209,344
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures	(18,284)	(14,388)	(22,503)
Cash paid for business acquisitions, net of cash acquired	(185,926)	(129,689)	(87,943)
Investment in unconsolidated joint venture, net		(5,964)	(2,428)
Other	(158)	798	(3)
Net cash used in investing activities	(204,368)	(149,243)	(112,877)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from borrowings under bank credit facilities, net of financing costs	1,093,751	343,978
Payments made under bank credit facilities	(977,500)	(482,403)	(53,600)
Payment of contingent consideration	(21,611)	(3,345)
Proceeds from employee stock purchase plans	4,095	4,116	4,501
Proceeds from exercise of stock options	7,466	22,077	5,589
Repurchases of common stock	(316,563)	(53,647)	(3,496)
Other	(584)	1,546	(7)
Net cash used in financing activities	(210,946)	(167,678)	(47,013)
Effect of exchange rate changes on cash and cash equivalents	(451)	1,231	(3,399)
Net (decrease) increase in cash and cash equivalents	(149,077)	(89,726)	46,055
Cash and cash equivalents, beginning of year	164,817	254,543	208,488
Cash and cash equivalents, end of year	15,740	164,817	254,543
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION
Cash paid for income taxes, net of refunds	94,994	65,875	66,713
Cash paid for interest	12,447	10,709	13,694
Non-cash financing and investing activities:
Landlord-financed leasehold improvements	$ 5,010	$ 2,853	$ 16,815