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Income Taxes - Schedule of Reconciliation of Income Taxes Computed at the U.S. Federal Income Tax Rate to the Company's Effective Income Tax Rate (Details) | 12 Months Ended
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Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2016
Reconciliation of income taxes computed at the U.S. Federal income tax rate to the Company's effective income tax rate |  |  |
Statutory federal income tax rate | 28.10% | 35.00% | 35.00%
State income taxes, net of federal tax benefit | 2.60% | 2.00% | 2.20%
Foreign tax rate differential | (0.10%) | (1.50%) | 5.50%
Domestic manufacturing deduction | (1.50%) | (3.00%) | (7.00%)
Research and development tax credit | (1.40%) | (3.90%) | (8.40%)
Law changes | 0.10% | 0.90% | (3.80%)
Increases in valuation allowances | 0.80% | 1.10% | 2.10%
Adjustments of prior years' income taxes | 0.20% | 3.30% | 1.30%
Unremitted earnings of foreign subsidiaries | (0.20%) | (1.20%) | 12.70%
Non-deductible goodwill impairment | 0.00% | 0.00% | 5.10%
Re-measurement of U.S. deferred taxes | (49.30%) | 0.00% | 0.00%
Transition tax on foreign earnings | 3.10% | 0.00% | 0.00%
Other, net | (0.10%) | 0.30% | 2.70%
Effective income tax rate | (17.70%) | 33.00% | 47.40%

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