Investments (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended
Sep. 30, 2021	Sep. 30, 2020
Investments [Abstract]
Net unrealized gain	$ 5,612	$ 8,476

Amount of unrealized gain (loss) on investment in debt and equity securities.

No definition available.

Name:	us-gaap_DebtAndEquitySecuritiesUnrealizedGainLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration