Income Taxes - Additional Information (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Dec. 31, 2017	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Income Taxes [Line Items]
Income tax payable		$ 800	$ 1,600	$ 1,100
Valuation allowance percentage established for domestic and foreign net deferred tax assets		100.00%
Undistributed earnings of foreign subsidiaries		$ 45,200
Reduction in uncertain tax position due to lapse of various statutes of limitation		$ 10
Subsequent period within which no material changes in unrecognized tax benefits are expected		12 months
Gross unrecognized tax benefits		$ 16,996	16,280	$ 15,299	$ 15,819
Uncertain tax benefits that, if realized, would affect the effective tax rate		16,800
Accrued interest and penalties related to uncertain tax positions		10	$ 60
Minimum
Income Taxes [Line Items]
Average annual prior gross receipts treshhold amount for exemption from base erosion and anti abuse tax		$ 500,000
Statutes of limitations with respect to jurisdictions (in years)		3 years
Maximum
Income Taxes [Line Items]
Statutes of limitations with respect to jurisdictions (in years)		10 years
Marginal Rate
Income Taxes [Line Items]
Effective income tax rate	35.00%
Flat Rate
Income Taxes [Line Items]
Effective income tax rate		21.00%
Federal
Income Taxes [Line Items]
Net operating loss carryforwards		$ 322,100
Federal | Research and development
Income Taxes [Line Items]
Tax credits		22,000
State
Income Taxes [Line Items]
Net operating loss carryforwards		139,100
State | Research and development
Income Taxes [Line Items]
Tax credits		$ 20,400