Convertible notes payable - Details of Notes Payable (Details) - USD ($) $ in Thousands	3 Months Ended
Sep. 30, 2025	Jun. 30, 2025
Long Term Debt [Roll Forward]
Balance at July 1, 2025	$ 962,765
Change in estimate related to accrued debt issuance costs	104
Interest expenses	9,833
Coupon interest payable	(8,493)
Convertible notes outstanding as at September 30, 2025	964,209
Convertible notes due within one year	0
Total convertible notes, net of portion due within one year	964,209	$ 962,765
2030 Convertible Notes
Long Term Debt [Roll Forward]
Balance at July 1, 2025	427,837
Change in estimate related to accrued debt issuance costs	104
Interest expenses	4,136
Coupon interest payable	(3,575)
Convertible notes outstanding as at September 30, 2025	428,502
Convertible notes due within one year	0
Total convertible notes, net of portion due within one year	428,502
2029 Convertible Notes
Long Term Debt [Roll Forward]
Balance at July 1, 2025	534,928
Change in estimate related to accrued debt issuance costs	0
Interest expenses	5,697
Coupon interest payable	(4,918)
Convertible notes outstanding as at September 30, 2025	535,707
Convertible notes due within one year	0
Total convertible notes, net of portion due within one year	$ 535,707

Change in Estimate Related to Accrued Debt Issuance Costs

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- Definition

Long Term Debt

+ References

No definition available.

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- Definition

Carrying value as of the balance sheet date of long-term debt (with maturities initially due after one year or beyond the operating cycle if longer) identified as Convertible Notes Payable, excluding current portion. Convertible Notes Payable is a written promise to pay a note which can be exchanged for a specified amount of another, related security, at the option of the issuer and the holder.

+ References

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- Definition

Including the current and noncurrent portions, carrying value as of the balance sheet date of a written promise to pay a note, initially due after one year or beyond the operating cycle if longer, which can be exchanged for a specified amount of one or more securities (typically common stock), at the option of the issuer or the holder.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-SubTopic 10
-Topic 210
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 944
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(16)(a)(2))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1

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- Definition

Carrying value as of the balance sheet date of the portion of long-term debt due within one year or the operating cycle if longer identified as Convertible Notes Payable. Convertible Notes Payable is a written promise to pay a note which can be exchanged for a specified amount of another, related security, at the option of the issuer and the holder.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(20))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

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- Definition

Increase for accrued, but unpaid interest on the debt instrument for the period.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480738/235-10-S50-1

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(f))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480678/235-10-S99-1

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- Definition

Amount of the required periodic payments applied to interest.

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