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Derivatives and Hedging Activity - Designated and Non-Designated Hedges (Details) - Dec. 31, 2025 € in Thousands, £ in Thousands, SFr in Thousands, $ in Thousands, $ in Thousands	USD ($) contract Item	EUR (€) contract Item	GBP (£) contract Item	AUD ($) contract Item	CHF (SFr) contract Item
Derivatives
Number of Contracts	609	609	609	609	609
Foreign exchange contracts | EUR | Long
Derivatives
Number of Contracts	13	13	13	13	13
Aggregate Notional Amount | €		€ 255,758
Foreign exchange contracts | EUR | Short
Derivatives
Number of Contracts	152	152	152	152	152
Aggregate Notional Amount | €		€ 659,467
Foreign exchange contracts | GBP | Long
Derivatives
Number of Contracts	13	13	13	13	13
Aggregate Notional Amount | £			£ 57,876
Foreign exchange contracts | GBP | Short
Derivatives
Number of Contracts	256	256	256	256	256
Aggregate Notional Amount | £			£ 485,539
Foreign exchange contracts | AUD | Long
Derivatives
Number of Contracts	9	9	9	9	9
Aggregate Notional Amount | $				$ 751,857
Foreign exchange contracts | AUD | Short
Derivatives
Number of Contracts	87	87	87	87	87
Aggregate Notional Amount | $				$ 1,471,485
Foreign exchange contracts | CHF | Long
Derivatives
Number of Contracts	1	1	1	1	1
Aggregate Notional Amount | SFr					SFr 5,584
Foreign exchange contracts | CHF | Short
Derivatives
Number of Contracts	7	7	7	7	7
Aggregate Notional Amount | SFr					SFr 17,326
Foreign exchange contracts | SEK | Short
Derivatives
Number of Contracts | Item	24	24	24	24	24
Aggregate Notional Amount | $	$ 360,609
Interest rate swaps – Paying fixed rates | USD
Derivatives
Number of Contracts	33	33	33	33	33
Aggregate Notional Amount | $	$ 2,497,198
Interest rate swaps – Receiving fixed rates | USD
Derivatives
Number of Contracts	8	8	8	8	8
Aggregate Notional Amount | $	$ 3,313,380
Interest rate futures | USD
Derivatives
Number of Contracts	1	1	1	1	1
Aggregate Notional Amount | $	$ 27,300
Interest rate caps | USD
Derivatives
Number of Contracts	3	3	3	3	3
Aggregate Notional Amount | $	$ 509,000
Credit instruments | USD
Derivatives
Number of Contracts	2	2	2	2	2
Aggregate Notional Amount | $	$ 90,000

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