v3.26.1
Fair value measurement - Schedule of assets and liabilities measured at fair value on a recurring basis (Details) - USD ($)
$ in Thousands
Jun. 30, 2026
Jun. 30, 2025
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total financial assets   $ 211,617
Total derivative assets $ 415,641 127,856
Total financial liabilities at amortized cost 7,167,336 962,765
2030 Convertible Notes    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total financial liabilities at amortized cost 207,621 427,837
2029 Convertible Notes    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total financial liabilities at amortized cost 228,343 534,928
2031 Convertible Notes    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total financial liabilities at amortized cost 981,814  
2032 Convertible Notes    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total financial liabilities at amortized cost 1,136,412  
2033 (Jun) Convertible Notes    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total financial liabilities at amortized cost 1,136,208  
2033 (Dec) Convertible Notes    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total financial liabilities at amortized cost 2,962,393  
USPP Senior Notes    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total financial liabilities at amortized cost 514,545  
Bitcoin purchase option    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total derivative assets   5,756
Capped Call Transactions    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total derivative assets 412,500 122,100
Interest-Rate Swaps    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total derivative assets 3,141  
Prepaid forward contract    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total financial assets   211,617
Level 1    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total financial assets   0
Total derivative assets 0 0
Total financial liabilities at amortized cost 7,484,104 1,195,933
Level 1 | 2030 Convertible Notes    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total financial liabilities at amortized cost 613,361 483,089
Level 1 | 2029 Convertible Notes    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total financial liabilities at amortized cost 828,943 712,844
Level 1 | 2031 Convertible Notes    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total financial liabilities at amortized cost 873,774  
Level 1 | 2032 Convertible Notes    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total financial liabilities at amortized cost 1,271,515  
Level 1 | 2033 (Jun) Convertible Notes    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total financial liabilities at amortized cost 1,279,326  
Level 1 | 2033 (Dec) Convertible Notes    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total financial liabilities at amortized cost 2,617,185  
Level 1 | USPP Senior Notes    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total financial liabilities at amortized cost 0  
Level 1 | Bitcoin purchase option    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total derivative assets   0
Level 1 | Capped Call Transactions    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total derivative assets 0 0
Level 1 | Interest-Rate Swaps    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total derivative assets 0  
Level 1 | Prepaid forward contract    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total financial assets   0
Level 2    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total financial assets   211,617
Total derivative assets 3,141 5,756
Total financial liabilities at amortized cost 524,274 0
Level 2 | 2030 Convertible Notes    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total financial liabilities at amortized cost 0 0
Level 2 | 2029 Convertible Notes    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total financial liabilities at amortized cost 0 0
Level 2 | 2031 Convertible Notes    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total financial liabilities at amortized cost 0  
Level 2 | 2032 Convertible Notes    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total financial liabilities at amortized cost 0  
Level 2 | 2033 (Jun) Convertible Notes    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total financial liabilities at amortized cost 0  
Level 2 | 2033 (Dec) Convertible Notes    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total financial liabilities at amortized cost 0  
Level 2 | USPP Senior Notes    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total financial liabilities at amortized cost 524,274  
Level 2 | Bitcoin purchase option    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total derivative assets   5,756
Level 2 | Capped Call Transactions    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total derivative assets 0 0
Level 2 | Interest-Rate Swaps    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total derivative assets 3,141  
Level 2 | Prepaid forward contract    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total financial assets   211,617
Level3    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total financial assets   0
Total derivative assets 412,500 122,100
Total financial liabilities at amortized cost 0 0
Level3 | 2030 Convertible Notes    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total financial liabilities at amortized cost 0 0
Level3 | 2029 Convertible Notes    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total financial liabilities at amortized cost 0 0
Level3 | 2031 Convertible Notes    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total financial liabilities at amortized cost 0  
Level3 | 2032 Convertible Notes    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total financial liabilities at amortized cost 0  
Level3 | 2033 (Jun) Convertible Notes    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total financial liabilities at amortized cost 0  
Level3 | 2033 (Dec) Convertible Notes    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total financial liabilities at amortized cost 0  
Level3 | USPP Senior Notes    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total financial liabilities at amortized cost 0  
Level3 | Bitcoin purchase option    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total derivative assets   0
Level3 | Capped Call Transactions    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total derivative assets 412,500 122,100
Level3 | Interest-Rate Swaps    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total derivative assets $ 0  
Level3 | Prepaid forward contract    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total financial assets   $ 0