Marketable Securities & Fair Value Measurements - Narrative (Details) - USD ($)	3 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Jun. 30, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Transfer of assets between level 1 and 2	$ 0
Equity Securities without Readily Determinable Fair Value, Amount	12,312,000		$ 12,333,000
Future payments to acquire long-term investments	1,410,000
Payments to Acquire Debt Securities, Available-for-sale	31,763,000	$ 38,462,000
Other-than-temporary impairments	0
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale debt securities	$ 21,715,000		$ 21,092,000