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Long-term investments - Combined Information for APUC's interest in VIE's (Details) - Variable Interest Entity, Not Primary Beneficiary - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Variable Interest Entity [Line Items]
Carrying amount	$ 121,176	$ 122,752
Development loans receivable	91,044	52,923
Performance guarantees and other commitments on behalf of VIEs	674,874	658,224
APUC's maximum exposure in regard to VIE's	$ 887,094	$ 833,899

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Variable Interest Entities, Commitments on Behalf of VIE

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Amount of net assets (liabilities).

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Amortized cost, after allowance for credit loss, of financing receivable. Excludes financing receivable covered under loss sharing agreement and net investment in lease.

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The reporting entity's maximum amount of exposure to loss as a result of its involvement with the Variable Interest Entity (VIE).

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