Consolidated Statements of Cash Flows $ in Thousands	12 Months Ended
	Jun. 30, 2020 USD ($)	Jun. 30, 2019 USD ($)	Jun. 30, 2018 USD ($)
Cash flows from operating activities:
Net income	$ 185,221	$ 186,182	$ 288,862
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	7,163	7,398	9,338
Amortization of deferred financing costs	1,994	3,003	3,003
Debt refinancing expense	455	0	0
Share-based compensation expense	19,235	18,087	13,979
Provision for doubtful accounts	278	930	17
Change in assets and liabilities:
Accounts receivable, net	2,582	1,371	(5,391)
Related party receivables, net	1,840	(3,984)	4,800
Prepaid expenses and other assets	(7,129)	4,464	1,398
Accounts payable	82	(553)	219
Related party payables, including payable to MSGS and MSGE	531	277	(2,171)
Prepaid/payable for income taxes	2,148	(9,294)	10,165
Accrued and other liabilities	(3,377)	364	(2,168)
Deferred revenue	2,568	(4,441)	(445)
Deferred income taxes	(3,559)	2,155	(110,996)
Net cash provided by operating activities	210,032	205,959	210,610
Cash flows from investing activities:
Capital expenditures	(2,814)	(2,879)	(3,724)
Investment in nonconsolidated entity	0	(2,000)	0
Net cash used in investing activities	(2,814)	(4,879)	(3,724)
Cash flows from financing activities:
Principal repayments on term loan facilities (see Note 7)	(35,000)	(175,000)	(125,000)
Proceeds from senior secured credit facilities (see Note 7)	100,000	0	0
Payments for financing costs	3,983	0	0
Payments for Repurchase of Common Stock	(293,531)	0	(13,850)
Taxes paid in lieu of shares issued for share-based compensation	(4,290)	(5,000)	(3,780)
Net cash used in financing activities	(236,804)	(180,000)	(142,630)
Net increase (decrease) in cash and cash equivalents	(29,586)	21,080	64,256
Cash and Cash Equivalents [Abstract]
Cash	$ 196,837	$ 226,423	$ 205,343