v3.19.2
Difference Between Income Taxes Computed at Federal Statutory Rate and Provision for Income Taxes (Detail)
12 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2017
Income Tax Disclosure [Abstract]      
Federal statutory rate 21.00% 28.10% 35.00%
Effect of:      
Foreign earnings taxed at lower rates (4.10%) (7.80%) (11.60%)
Impact of the enactment of the TCJA 0.40% 37.70% 0.00%
Phone business losses 0.00% 0.00% (5.70%)
Impact of intangible property transfers (5.90%) 0.00% 0.00%
Foreign-derived intangible income deduction (1.40%) (0.00%) (0.00%)
Research and development credit (1.10%) (1.30%) (0.90%)
Excess tax benefits relating to stock-based compensation (2.20%) (2.50%) (2.10%)
Interest, net 1.00% 1.20% 1.40%
Other reconciling items, net 2.50% (0.80%) (1.30%)
Effective rate 10.20% 54.60% 14.80%