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Income Taxes - Narrative (Details) - USD ($) $ in Thousands | 12 Months Ended
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Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2018
Income Tax Contingency [Line Items] |  |  |
TCJA, income tax expense |  |  | $ 44,500
Valuation allowance | $ 14,582 | $ 14,252 |
Period of net operating loss carryover | 15 years |  |
Foreign tax credits | $ 580 | 761 |
Reductions for settlements with state tax filing positions | 93 | 144 | 0
Reduction in unrecognized tax positions due to inventory method change | 92 |  |
Additions based on tax positions taken during the current period | 314 | $ 1,216 | $ 216
Expected decrease in unrecognized tax benefits, next 12 months | 307 |  |
Unrecognized tax benefits that would impact effective tax rate | 1,226 |  |
Accrued interest related to unrecognized tax benefits | 231 |  |
State and Local Jurisdiction |  |  |
Income Tax Contingency [Line Items] |  |  |
Additions based on tax positions taken during the current period | $ 203 |  |

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