The Company and Significant Accounting Policies - Recently Adopted Accounting Standards (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018	Jul. 01, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
ROU assets associated with operating leases	$ 32,948	$ 0		$ 21,000
Operating lease liability	$ 34,413			$ 21,000
Accounting Standards Update [Extensible List]	us-gaap:AccountingStandardsUpdate201602Member	us-gaap:AccountingStandardsUpdate201409Member	us-gaap:AccountingStandardsUpdate201606Member
Change in Accounting Principle, Accounting Standards Update, Transition Option Elected [Extensible List]	us-gaap:AccountingStandardsUpdate201602CumulativeEffectPeriodOfAdoptionMember