Income Taxes	9 Months Ended
Mar. 31, 2017
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The Company recorded provisions for income taxes of $5,140,000 and $20,824,000 for the three and nine months ended March 31, 2017, respectively, and $7,386,000 and $28,951,000 for the three and nine months ended March 31, 2016, respectively. The effective tax rate was 23.6% and 28.5% for the three and nine months ended March 31, 2017, respectively, and 30.7% and 30.8% for the three and nine months ended March 31, 2016, respectively. The effective tax rate for the three and nine months ended March 31, 2017 is estimated to be lower than the federal statutory rate primarily due to a tax benefit resulting from the completion of an income tax audit in a foreign jurisdiction, the benefit from U.S. federal research and development ("R&D") tax credits and domestic production activities deductions. As of March 31, 2017, the Company had a liability for gross unrecognized tax benefits of $17,329,000, substantially all of which, if recognized, would affect the Company's effective tax rate. During the three and nine months ended March 31, 2017, 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, 2017, the Company had accrued $1,418,000 of interest and penalties relating to unrecognized tax benefits. The Company is subject to United States federal income tax as well as income taxes in many state and foreign jurisdictions. The Company's 2012 and 2013 federal tax returns are currently under the Internal Revenue Service ("IRS") examination. The Company has responded to Information Document Requests ("IDRs"), issued by the IRS. No adjustment has been proposed by the IRS as of March 31, 2017. The Company was also under audit in Taiwan for tax year 2013 related to local income tax exemption regime which the Company has participated in. The Taiwan taxing authority issued a tax assessment related to the 2013 tax exemption which the Company appealed for. On January 9, 2017, the Company received a notification letter from the Taiwan taxing authority that the audit was completed. The audit resulted in minimal adjustments. The Company does not plan to appeal or litigate the audit results. The federal statute of limitations remain open in general for tax years 2012 through 2016. The state statute of limitations remain open in general for tax years 2012 through 2016. The statute of limitations in major foreign jurisdictions remain open for examination in general for tax years 2010 through 2016.

Income Taxes

The Company recorded provisions for income taxes of $5,140,000 and $20,824,000 for the three and nine months ended March 31, 2017, respectively, and $7,386,000 and $28,951,000 for the three and nine months ended March 31, 2016, respectively. The effective tax rate was 23.6% and 28.5% for the three and nine months ended March 31, 2017, respectively, and 30.7% and 30.8% for the three and nine months ended March 31, 2016, respectively. The effective tax rate for the three and nine months ended March 31, 2017 is estimated to be lower than the federal statutory rate primarily due to a tax benefit resulting from the completion of an income tax audit in a foreign jurisdiction, the benefit from U.S. federal research and development ("R&D") tax credits and domestic production activities deductions.

As of March 31, 2017, the Company had a liability for gross unrecognized tax benefits of $17,329,000, substantially all of which, if recognized, would affect the Company's effective tax rate. During the three and nine months ended March 31, 2017, 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, 2017, the Company had accrued $1,418,000 of interest and penalties relating to unrecognized tax benefits.

The Company is subject to United States federal income tax as well as income taxes in many state and foreign jurisdictions. The Company's 2012 and 2013 federal tax returns are currently under the Internal Revenue Service ("IRS") examination. The Company has responded to Information Document Requests ("IDRs"), issued by the IRS. No adjustment has been proposed by the IRS as of March 31, 2017. The Company was also under audit in Taiwan for tax year 2013 related to local income tax exemption regime which the Company has participated in. The Taiwan taxing authority issued a tax assessment related to the 2013 tax exemption which the Company appealed for. On January 9, 2017, the Company received a notification letter from the Taiwan taxing authority that the audit was completed. The audit resulted in minimal adjustments. The Company does not plan to appeal or litigate the audit results.

The federal statute of limitations remain open in general for tax years 2012 through 2016. The state statute of limitations remain open in general for tax years 2012 through 2016. The statute of limitations in major foreign jurisdictions remain open for examination in general for tax years 2010 through 2016.