Loans Receivable and Allowance for Credit Losses - Schedule of Activities in Allowance for Loan Losses by Portfolio Segments and Unfunded Credit Commitments (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Allowance for unfunded credit reserves
Allowance for unfunded credit commitments, beginning of period			$ 39,000
Foreign currency translation adjustment	$ 153	$ 337	231	$ 184
Allowance for unfunded credit commitments, end of period	48,000		48,000
Provision for credit losses	36,000	42,000	130,000	104,000
Unfunded Credit Commitments
Allowance for unfunded credit reserves
Allowance for unfunded credit commitments, beginning of period	45,307	38,783	39,526	37,698
Provision for credit losses on unfunded credit commitments	3,084	283	8,866	1,367
Foreign currency translation adjustment	(1)	(4)	(2)	(3)
Allowance for unfunded credit commitments, end of period	48,390	39,062	48,390	39,062
Loans, Leases and Unfunded Credit Commitments
Allowance for unfunded credit reserves
Provision for credit losses	$ 33,000	$ 42,000	$ 127,000	$ 104,000

Amount, excluding accrued interest, of foreign currency translation gain (loss) which decreases (increases) allowance for credit loss on financing receivable. Excludes net investment in lease.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
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-Paragraph 13
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- Definition

Amount of expected credit loss for credit exposure on off-balance-sheet commitment, including but not limited to, loan commitment, standby letter of credit, financial guarantee not accounted for as insurance. Excludes off-balance sheet credit exposure accounted for as insurance and instrument accounted for under derivatives and hedging.

+ References

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Amount of expense (reversal of expense) for expected credit loss for off-balance sheet credit exposure. Excludes off-balance sheet credit exposure accounted for as insurance and instrument accounted for under derivatives and hedging.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Amount of expense related loan transactions, lease transactions, credit loss from transactions other than loan and lease transactions, and other loss based on assessment of uncollectability from the counterparty to reduce the account to their net realizable value.

+ References

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