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Income taxes - Summary of net operating losses and tax credit carryforwards (Detail)
$ in Thousands
 12 Months Ended
Jun. 30, 2025
USD ($)
Foreign Tax Authority [Member]  
Disclosure Details Of Operating Loss Carry Forwards And Tax Credits [Line Items]  
Net operating losses $ 47,924
Operating loss carryforwards, expiration years Do not expire
NOL From Two Thousand Eighteen [Member] | Domestic Tax Authority [Member]  
Disclosure Details Of Operating Loss Carry Forwards And Tax Credits [Line Items]  
Net operating losses $ 21,391
Operating loss carryforwards, expiration years Do not expire
NOL pre January One Two Thousand Eighteen [Member] | State and Local Jurisdiction [Member]  
Disclosure Details Of Operating Loss Carry Forwards And Tax Credits [Line Items]  
Net operating losses $ 0
Operating loss carryforwards, expiration years —