Income taxes	3 Months Ended
Sep. 30, 2018
Income Tax Disclosure [Abstract]
Income taxes	Income taxes On December 22, 2017, the TCJ Act was enacted into law. The TCJ Act significantly reforms the Internal Revenue Code of 1986, as amended, by among other things, establishing a flat corporate income tax rate of 21 percent and creating a territorial tax system (with a one-time transition tax imposed on previously undistributed foreign earnings and profits). The Securities and Exchange Commission staff issued Staff Accounting Bulletin (SAB) 118, which provides guidance on accounting for the tax effects of the TCJ Act. SAB 118 provides a measurement period that should not extend beyond one year from the TCJ Act's enactment date for companies to complete the applicable accounting under Topic 740. In accordance with SAB 118, and based on the information available, the Company has recorded provisional amounts for the remeasurement of deferred tax balances and related valuation allowances, the one-time transition tax and the repatriation of undistributed foreign earnings. The Company did not record any adjustments to these provisional amounts during the three months ended September 30, 2018. During the period ended September 30, 2018, the Company made the accounting policy election to treat taxes related to Global Intangible Low-Taxed Income as a current period expense when incurred. The Company and its subsidiaries file income tax returns in the United States and in various foreign jurisdictions. In the normal course of business, the Company is subject to examination by taxing authorities throughout the world. The Company is open to assessment of its federal income tax returns by the U.S. Internal Revenue Service for fiscal years after 2011, and its state and local returns for fiscal years after 2012. The Company is also open to assessment for foreign jurisdictions for fiscal years after 2009. Unrecognized tax benefits reflect the difference between positions taken or expected to be taken on income tax returns and the amounts reflected in the financial statements. As of September 30, 2018, the Company had gross unrecognized tax benefits of $151,098. The total amount of gross unrecognized tax benefits that, if recognized, would affect the effective tax rate was $151,098. The accrued interest related to the gross unrecognized tax benefits, excluded from the amounts above, is $22,618. It is reasonably possible that within the next 12 months the amount of gross unrecognized tax benefits could be reduced by up to approximately $120,000 as a result of the revaluation of existing uncertain tax positions arising from developments in the examination process or the closure of tax statutes. Any increase in the amount of gross unrecognized tax benefits within the next 12 months is expected to be insignificant.

Income taxes

On December 22, 2017, the TCJ Act was enacted into law. The TCJ Act significantly reforms the Internal Revenue Code of 1986, as amended, by among other things, establishing a flat corporate income tax rate of 21 percent and creating a territorial tax system (with a one-time transition tax imposed on previously undistributed foreign earnings and profits).

The Securities and Exchange Commission staff issued Staff Accounting Bulletin (SAB) 118, which provides guidance on accounting for the tax effects of the TCJ Act. SAB 118 provides a measurement period that should not extend beyond one year from the TCJ Act's enactment date for companies to complete the applicable accounting under Topic 740. In accordance with SAB 118, and based on the information available, the Company has recorded provisional amounts for the remeasurement of deferred tax balances and related valuation allowances, the one-time transition tax and the repatriation of undistributed foreign earnings. The Company did not record any adjustments to these provisional amounts during the three months ended September 30, 2018.

During the period ended September 30, 2018, the Company made the accounting policy election to treat taxes related to Global Intangible Low-Taxed Income as a current period expense when incurred.

The Company and its subsidiaries file income tax returns in the United States and in various foreign jurisdictions. In the normal course of business, the Company is subject to examination by taxing authorities throughout the world. The Company is open to assessment of its federal income tax returns by the U.S. Internal Revenue Service for fiscal years after 2011, and its state and local returns for fiscal years after 2012. The Company is also open to assessment for foreign jurisdictions for fiscal years after 2009. Unrecognized tax benefits reflect the difference between positions taken or expected to be taken on income tax returns and the amounts reflected in the financial statements.

As of September 30, 2018, the Company had gross unrecognized tax benefits of $151,098. The total amount of gross unrecognized tax benefits that, if recognized, would affect the effective tax rate was $151,098. The accrued interest related to the gross unrecognized tax benefits, excluded from the amounts above, is $22,618. It is reasonably possible that within the next 12 months the amount of gross unrecognized tax benefits could be reduced by up to approximately $120,000 as a result of the revaluation of existing uncertain tax positions arising from developments in the examination process or the closure of tax statutes. Any increase in the amount of gross unrecognized tax benefits within the next 12 months is expected to be insignificant.