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Income Taxes - Summary of Net Operating Loss and Research Credit Carryforwards (Tax Effected) (Detail)
$ in Millions
 12 Months Ended
Jun. 30, 2020
USD ($)
Domestic Country [Member] | Federal [Member]  
Operating Loss Carryforwards [Line Items]  
Net operating losses $ 52.5
Net operating losses subject to sections 382,383 Yes
Domestic Country [Member] | Federal [Member] | Minimum [Member]  
Operating Loss Carryforwards [Line Items]  
Net operating losses, expiration in year 2031
Domestic Country [Member] | Federal [Member] | Maximum [Member]  
Operating Loss Carryforwards [Line Items]  
Net operating losses, expiration in year 2038
Domestic Country [Member] | Federal [Member] | Research [Member]  
Operating Loss Carryforwards [Line Items]  
Research credit $ 11.2
Research credit subject to sections 382,383 Yes
Domestic Country [Member] | Federal [Member] | Research [Member] | Minimum [Member]  
Operating Loss Carryforwards [Line Items]  
Research credit, expiration in year 2027
Domestic Country [Member] | Federal [Member] | Research [Member] | Maximum [Member]  
Operating Loss Carryforwards [Line Items]  
Research credit, expiration in year 2040
State and Local Jurisdiction [Member] | UTAH [Member]  
Operating Loss Carryforwards [Line Items]  
Net operating losses $ 2.7
Net operating losses subject to sections 382,383 No
State and Local Jurisdiction [Member] | UTAH [Member] | Minimum [Member]  
Operating Loss Carryforwards [Line Items]  
Net operating losses, expiration in year 2021
State and Local Jurisdiction [Member] | UTAH [Member] | Maximum [Member]  
Operating Loss Carryforwards [Line Items]  
Net operating losses, expiration in year 2033
State and Local Jurisdiction [Member] | UTAH [Member] | Research [Member]  
Operating Loss Carryforwards [Line Items]  
Research credit $ 11.6
Research credit subject to sections 382,383 No
State and Local Jurisdiction [Member] | UTAH [Member] | Research [Member] | Minimum [Member]  
Operating Loss Carryforwards [Line Items]  
Research credit, expiration in year 2030
State and Local Jurisdiction [Member] | UTAH [Member] | Research [Member] | Maximum [Member]  
Operating Loss Carryforwards [Line Items]  
Research credit, expiration in year 2034
State and Local Jurisdiction [Member] | California [Member]  
Operating Loss Carryforwards [Line Items]  
Net operating losses $ 3.5
Net operating losses subject to sections 382,383 No
State and Local Jurisdiction [Member] | California [Member] | Minimum [Member]  
Operating Loss Carryforwards [Line Items]  
Net operating losses, expiration in year 2027
State and Local Jurisdiction [Member] | California [Member] | Maximum [Member]  
Operating Loss Carryforwards [Line Items]  
Net operating losses, expiration in year 2040
State and Local Jurisdiction [Member] | California [Member] | Research [Member]  
Operating Loss Carryforwards [Line Items]  
Research credit $ 4.7
Research credit subject to sections 382,383 No
State and Local Jurisdiction [Member] | California [Member] | Research [Member] | Minimum [Member]  
Operating Loss Carryforwards [Line Items]  
Research credit, expiration in year 2027
State and Local Jurisdiction [Member] | California [Member] | Research [Member] | Maximum [Member]  
Operating Loss Carryforwards [Line Items]  
Research credit, expiration in year 2040
State and Local Jurisdiction [Member] | Other State [Member]  
Operating Loss Carryforwards [Line Items]  
Net operating losses $ 6.9
Net operating losses subject to sections 382,383 Yes
State and Local Jurisdiction [Member] | Other State [Member] | Minimum [Member]  
Operating Loss Carryforwards [Line Items]  
Net operating losses, expiration in year 2027
State and Local Jurisdiction [Member] | Other State [Member] | Maximum [Member]  
Operating Loss Carryforwards [Line Items]  
Net operating losses, expiration in year 2040
State and Local Jurisdiction [Member] | TEXAS [Member] | Research [Member]  
Operating Loss Carryforwards [Line Items]  
Research credit $ 0.1
Research credit subject to sections 382,383 No
State and Local Jurisdiction [Member] | TEXAS [Member] | Research [Member] | Minimum [Member]  
Operating Loss Carryforwards [Line Items]  
Research credit, expiration in year 2039
State and Local Jurisdiction [Member] | TEXAS [Member] | Research [Member] | Maximum [Member]  
Operating Loss Carryforwards [Line Items]  
Research credit, expiration in year 2040
Foreign (various jurisdictions) [Member]  
Operating Loss Carryforwards [Line Items]  
Net operating losses $ 7.6
Net operating losses subject to sections 382,383 No
Foreign (various jurisdictions) [Member] | Minimum [Member]  
Operating Loss Carryforwards [Line Items]  
Net operating losses, expiration date ranges Various
Foreign (various jurisdictions) [Member] | Maximum [Member]  
Operating Loss Carryforwards [Line Items]  
Net operating losses, expiration date ranges Various