CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 457,443	$ 321,480	$ 265,604
Reconciliation of net income to net cash provided by operating activities:
Depreciation and amortization	125,363	110,688	85,877
Amortization of deferred financing costs	2,320	2,346	2,406
Non-cash lease expense	77,148	73,248
Loss on extinguishment of debt			363
Loss on disposal of assets	6	190	70
Stock-based compensation expense	30,463	29,302	25,272
Deferred income taxes	108,973	17,874	(1,009)
Changes in operating assets and liabilities, net of effect of business acquisitions:
Accounts receivable, net	(38,162)	34,550	96,754
Prepaid expenses and other assets	(15,766)	(38,432)	(5,372)
Accounts payable and other accrued expenses	49,812	(24,406)	70,692
Accrued compensation and benefits	68,742	46,769	8,387
Income taxes payable and receivable	(231,971)	(25,118)	1,119
Deferred rent			(538)
Operating lease liabilities	(73,057)	(74,928)
Long-term liabilities	30,901	45,142	5,672
Net cash provided by operating activities	592,215	518,705	555,297
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures	(73,129)	(72,303)	(47,902)
Cash paid for business acquisitions, net of cash acquired	(356,261)	(106,226)	(1,082,809)
Other	2,744		2,729
Net cash used in investing activities	(426,646)	(178,529)	(1,127,982)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from borrowings under bank credit facilities	3,290,000	1,698,000	2,531,500
Principal payments made under bank credit facilities	(2,960,920)	(1,960,920)	(1,928,420)
Payment of financing costs under bank credit facilities			(3,177)
Payment of contingent consideration		(8,700)	(616)
Proceeds from employee stock purchase plans	9,181	7,432	5,702
Repurchases of common stock	(509,137)	(7,806)	(5,838)
Payment of taxes for equity transactions	(19,720)	(31,400)	(19,595)
Net cash provided by (used in) financing activities	(190,596)	(303,394)	579,556
Effect of exchange rate changes on cash and cash equivalents	5,822	(1,574)	(1,037)
Net change in cash and cash equivalents	(19,205)	35,208	5,834
Cash and cash equivalents, beginning of year	107,236	72,028	66,194
Cash and cash equivalents, end of year	88,031	107,236	72,028
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION
Cash paid during the period for income taxes, net of refunds	142,177	79,071	68,303
Cash paid during the period for interest	36,137	50,986	44,673
Non-cash financing and investing activities:
Accrued capital expenditures	950	1,078	8,223
Landlord sponsored tenant incentives	$ 16,363	$ 2,925	$ 5,180