v3.26.3
Intangible assets - Summary of Intangible Assets (Details) - USD ($)
$ in Thousands
 12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Reconciliation of changes in intangible assets other than goodwill [abstract]    
Balance at beginning $ 91,124  
Amortization expense 32,112 $ 32,768
Balance at ending 59,012 91,124
Cost    
Reconciliation of changes in intangible assets other than goodwill [abstract]    
Balance at beginning 243,904 246,114
Disposal of VoIP Supply LLC 2,210  
Balance at ending 243,904 243,904
Accumulated amortization    
Reconciliation of changes in intangible assets other than goodwill [abstract]    
Balance at beginning (152,780) (121,986)
Disposal of VoIP Supply LLC (1,974)  
Amortization expense 32,112 32,768
Balance at ending (184,892) (152,780)
Purchased technology    
Reconciliation of changes in intangible assets other than goodwill [abstract]    
Balance at beginning 33,479  
Balance at ending 16,672 33,479
Purchased technology | Cost    
Reconciliation of changes in intangible assets other than goodwill [abstract]    
Balance at beginning 110,123 110,123
Disposal of VoIP Supply LLC 0  
Balance at ending 110,123 110,123
Purchased technology | Accumulated amortization    
Reconciliation of changes in intangible assets other than goodwill [abstract]    
Balance at beginning (76,644) (59,259)
Disposal of VoIP Supply LLC 0  
Amortization expense 16,807 17,385
Balance at ending (93,451) (76,644)
Customer relationships    
Reconciliation of changes in intangible assets other than goodwill [abstract]    
Balance at beginning 55,894  
Balance at ending 41,101 55,894
Customer relationships | Cost    
Reconciliation of changes in intangible assets other than goodwill [abstract]    
Balance at beginning 125,296 126,456
Disposal of VoIP Supply LLC 1,160  
Balance at ending 125,296 125,296
Customer relationships | Accumulated amortization    
Reconciliation of changes in intangible assets other than goodwill [abstract]    
Balance at beginning (69,402) (55,769)
Disposal of VoIP Supply LLC (1,160)  
Amortization expense 14,793 14,793
Balance at ending (84,195) (69,402)
Brand    
Reconciliation of changes in intangible assets other than goodwill [abstract]    
Balance at beginning 1,751  
Balance at ending 1,239 1,751
Brand | Cost    
Reconciliation of changes in intangible assets other than goodwill [abstract]    
Balance at beginning 5,737 6,787
Disposal of VoIP Supply LLC 1,050  
Balance at ending 5,737 5,737
Brand | Accumulated amortization    
Reconciliation of changes in intangible assets other than goodwill [abstract]    
Balance at beginning (3,986) (4,210)
Disposal of VoIP Supply LLC (814)  
Amortization expense 512 590
Balance at ending (4,498) (3,986)
Other purchased intangibles    
Reconciliation of changes in intangible assets other than goodwill [abstract]    
Balance at beginning 0  
Balance at ending 0 0
Other purchased intangibles | Cost    
Reconciliation of changes in intangible assets other than goodwill [abstract]    
Balance at beginning 2,748 2,748
Disposal of VoIP Supply LLC 0  
Balance at ending 2,748 2,748
Other purchased intangibles | Accumulated amortization    
Reconciliation of changes in intangible assets other than goodwill [abstract]    
Balance at beginning (2,748) (2,748)
Disposal of VoIP Supply LLC 0  
Amortization expense 0 0
Balance at ending $ (2,748) $ (2,748)