Fair Value Measurements - Financial Instruments/Transactions - Summary of offsetting of OTC derivative and financial instruments/transaction assets and liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Offsetting of OTC derivative assets and liabilities:
Gross Amounts of Recognized Assets	$ 817	$ 13
Gross Amounts of Recognized Liabilities	(350)	(1,676)
Net Amounts of Recognized Assets/(Liabilities)	467	(1,663)
Collateral Pledged/(Received)	0	0
Net Amount	467	(1,663)
Commonwealth Bank Of Australia
Offsetting of OTC derivative assets and liabilities:
Gross Amounts of Recognized Assets	2	0
Gross Amounts of Recognized Liabilities	(193)	(356)
Net Amounts of Recognized Assets/(Liabilities)	(191)	(356)
Collateral Pledged/(Received)	0	0
Net Amount	(191)	(356)
Macquarie Bank Limited
Offsetting of OTC derivative assets and liabilities:
Gross Amounts of Recognized Assets	656	9
Gross Amounts of Recognized Liabilities	(58)	(424)
Net Amounts of Recognized Assets/(Liabilities)	598	(415)
Collateral Pledged/(Received)	0	0
Net Amount	598	(415)
Macquarie Bank Limited \| Reverse Repurchase Agreement
Offsetting of OTC derivative assets and liabilities:
Gross Market Value of Recognized Assets/(Liabilities)		(7,670)
Collateral Pledged/(Received)		7,670
Net Amount		0
Nomura International plc
Offsetting of OTC derivative assets and liabilities:
Gross Amounts of Recognized Assets	159	4
Gross Amounts of Recognized Liabilities	(99)	(896)
Net Amounts of Recognized Assets/(Liabilities)	60	(892)
Collateral Pledged/(Received)	0	0
Net Amount	$ 60	$ (892)