Income Taxes	9 Months Ended
Income Taxes	Mar. 31, 2020
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The Company recorded a benefit for income taxes of $0.9 million for the three months ended March 31, 2020, and a provision for income taxes of $9.8 million for the nine months ended March 31, 2020. The Company recorded provisions for income taxes of $0.5 million and $10.5 million for the three and nine months ended March 31, 2019, respectively. The effective tax rate was (5.6)% and 12.8% for the three and nine months ended March 31, 2020, respectively, and 4.3% and 16.9% for the three and nine months ended March 31, 2019, respectively. The effective tax rate for the three and nine months ended March 31, 2020 is lower than that for the three and nine months ended March 31, 2019, primarily due to the tax benefit from employees’ exercises of stock options. As a result of the 2017 Tax Reform Act, in December 2019, the Company realigned its international business operations and group structure. As a part of this restructuring, the Company moved certain intellectual property back to the United States. This tax restructuring is not expected to have a material impact on the estimated annual effective tax rate. On March 27, 2020, the Coronavirus Aid, Relief, and Economic Security Act (the “CARES Act”) was enacted. The CARES Act provides temporary relief from certain aspects of the 2017 Tax Reform Act that imposed limitations on the utilization of certain losses, interest expense deductions and alternative minimum tax credits and made a technical correction to the 2017 Tax Reform Act related to the depreciable life of qualified improvement property. The CARES Act is not expected to have a material impact on the Company. As of March 31, 2020, the Company had a liability for gross unrecognized tax benefits of $25.8 million, substantially all of which, if recognized, would affect the Company's effective tax rate. During the nine months ended March 31, 2020, there were no material changes in the total amount of the liability for gross unrecognized tax benefits. The Company’s policy is to include interest and penalties related to unrecognized tax benefits within the provision for taxes on the condensed consolidated statements of operations. As of March 31, 2020, the Company had accrued $2.0 million of interest and penalties relating to unrecognized tax benefits. Under the 2017 Tax Reform Act, starting on July 1, 2018, the Company is no longer subject to federal income tax on earnings remitted from our foreign subsidiaries. As a result of the 2017 Tax Reform Act, the Company has determined that its foreign undistributed earnings are indefinitely reinvested except for undistributed earnings related to the Company's operations in the Netherlands. The Company may repatriate certain foreign earnings from the Netherlands that have been previously taxed in the U.S. The tax impact of such repatriation is estimated to be immaterial. In October 2019, the Taiwan tax authority completed its audit in Taiwan for fiscal year 2018 and proposed a transfer pricing adjustment on the Company which resulted in additional tax liability of $1.6 million. The Company accepted the proposed adjustment in October 2019 and paid the $1.6 million tax liability in accordance with the tax assessment notice issued in February 2020. The impact of this adjustment on the income statement has been offset by the recognition of previously unrecognized tax benefits for the three months ended March 31, 2020. In February 2020, the Taiwan tax authority proposed an adjustment to the Company’s fiscal year 2019 transfer pricing which resulted in additional tax liability of $1.0 million. The Company accepted the proposed adjustment and paid the $1.0 million tax liability in February 2020. The impact of this adjustment on the income statement has been offset by the recognition of previously unrecognized tax benefits for the three months ended March 31, 2020. The Company believes that it has adequately provided reserves for all uncertain tax positions; however, amounts asserted by tax authorities could be greater or less than the Company’s current position. Accordingly, the Company’s provision on federal, state and foreign tax related matters to be recorded in the future may change as revised estimates are made or as the underlying matters are settled or otherwise resolved. The federal statute of limitations remains open in general for tax years ended June 30, 2017 through 2019. Various states statute of limitations remain open in general for tax years ended June 30, 2016 through 2019. Certain statutes of limitations in major foreign jurisdictions remain open in general for the tax years ended June 30, 2014 through 2019. The Company does not expect its unrecognized tax benefits to change materially over the next 12 months, except for the reductions arising from the lapse of the statute of limitations. It is reasonably possible that our gross unrecognized tax benefits will decrease by approximately $5.5 million in the next 12 months, primarily due to the lapse of the statute of limitations and settlement with the Tax Authorities. These adjustments, if recognized, would positively impact our effective tax rate, and would be recognized as additional tax benefits.