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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	Dec. 31, 2021	Dec. 31, 2020
Variable Interest Entity [Line Items]
Net assets	$ 86,202	$ 174,685
Development loans receivable	31,468	21,804
Performance guarantees and other commitments on behalf of VIEs	409,232	965,291
APUC's maximum exposure in regard to VIE's	$ 526,902	$ 1,161,780

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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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Amount, after allowance for credit loss, of financing receivable. Excludes financing receivable covered under loss sharing agreement.

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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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