CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 321,480	$ 265,604	$ 301,171
Reconciliation of net income to net cash provided by operating activities:
Depreciation and amortization	110,688	85,877	72,196
Amortization of deferred financing costs	2,346	2,406	4,061
Non-cash lease expense	73,248
Loss on extinguishment of debt		363	104
Loss on disposal of assets	190	70	989
Stock-based compensation expense	29,302	25,272	23,628
Deferred income taxes	17,874	(1,009)	(77,324)
Changes in operating assets and liabilities, net of effect of business acquisitions:
Accounts receivable, net	34,550	96,754	(42,575)
Prepaid expenses and other assets	(38,432)	(5,372)	(9,146)
Accounts payable and other accrued expenses	(24,406)	70,692	1,097
Accrued compensation and benefits	46,769	8,387	13,544
Income taxes payable and receivable	(25,118)	1,119	6,090
Deferred rent		(538)	(183)
Operating lease liabilities	(74,928)
Long-term liabilities	45,142	5,672	27,808
Net cash provided by operating activities	518,705	555,297	321,460
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures	(72,303)	(47,902)	(41,594)
Cash paid for business acquisitions, net of cash acquired	(106,226)	(1,082,809)	(76,910)
Other		2,729	3,898
Net cash used in investing activities	(178,529)	(1,127,982)	(114,606)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from borrowings under bank credit facilities	1,698,000	2,531,500	477,000
Principal payments made under bank credit facilities	(1,960,920)	(1,928,420)	(647,474)
Payment of financing costs under bank credit facilities		(3,177)	(2,915)
Payment of contingent consideration	(8,700)	(616)	(11,553)
Proceeds from employee stock purchase plans	7,432	5,702	4,929
Repurchases of common stock	(7,806)	(5,838)	(5,138)
Payment of taxes for equity transactions	(31,400)	(19,595)	(21,365)
Net cash provided by (used in) financing activities	(303,394)	579,556	(206,516)
Effect of exchange rate changes on cash and cash equivalents	(1,574)	(1,037)	317
Net increase in cash and cash equivalents	35,208	5,834	655
Cash and cash equivalents, beginning of year	72,028	66,194	65,539
Cash and cash equivalents, end of year	107,236	72,028	66,194
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION
Cash paid during the period for income taxes, net of refunds	79,071	68,303	57,941
Cash paid during the period for interest	50,986	44,673	40,100
Non-cash financing and investing activities:
Accrued capital expenditures	1,078	8,223	$ 609
Landlord sponsored tenant incentives	$ 2,925	$ 5,180