CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Thousands	6 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 200,122	$ 147,172
Reconciliation of net income to net cash provided by operating activities:
Depreciation and amortization	62,378	54,729
Amortization of deferred financing costs	1,163	1,176
Non-cash lease expense	38,436	35,850
Stock-based compensation expense	15,041	14,499
Deferred income taxes	(6,311)	14,104
Changes in operating assets and liabilities, net of effect of business acquisitions:
Accounts receivable, net	94,292	51,458
Prepaid expenses and other assets	(20,605)	(28,921)
Accounts payable and other accrued expenses	(30,087)	8,121
Accrued compensation and benefits	39,461	1,529
Income taxes payable and receivable	11,107	(21,384)
Operating lease liabilities	(37,916)	(37,989)
Long-term liabilities	15,206	(3,319)
Net cash provided by operating activities	382,287	237,025
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures	(31,873)	(41,035)
Cash paid for business acquisitions, net of cash acquired	(355,127)	(102,056)
Net cash used in investing activities	(387,000)	(143,091)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from borrowings under bank credit facilities	1,174,000	1,034,000
Principal payments made under bank credit facilities	(1,161,460)	(1,102,460)
Proceeds from employee stock purchase plans	4,664	3,665
Repurchases of common stock	(4,420)	(3,596)
Payment of taxes for equity transactions	(18,649)	(29,083)
Net cash used in financing activities	(5,865)	(97,474)
Effect of exchange rate changes on cash and cash equivalents	5,456	157
Net decrease in cash and cash equivalents	(5,122)	(3,383)
Cash and cash equivalents at beginning of period	107,236	72,028
Cash and cash equivalents at end of period	102,114	68,645
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION
Cash paid during the period for income taxes, net of refunds	50,903	38,048
Cash paid during the period for interest	17,210	28,410
Non-cash financing and investing activities:
Landlord sponsored tenant improvement	13,853	759
Accrued capital expenditures	$ 1,047	$ 4,910