Derivatives and Hedging Activity - Designated and Non-Designated Hedges (Details) € in Thousands, £ in Thousands, SFr in Thousands, $ in Thousands, $ in Thousands	Dec. 31, 2023 EUR (€) contract	Dec. 31, 2023 GBP (£) contract	Dec. 31, 2023 AUD ($) contract	Dec. 31, 2023 CHF (SFr) contract	Dec. 31, 2023 USD ($) contract
Derivatives
Number of Contracts	710	710	710	710	710
Foreign exchange contracts | EUR | Long
Derivatives
Number of Contracts	14	14	14	14	14
Aggregate Notional Amount | €	€ 28,805
Foreign exchange contracts | EUR | Short
Derivatives
Number of Contracts	186	186	186	186	186
Aggregate Notional Amount | €	€ 843,888
Foreign exchange contracts | GBP | Long
Derivatives
Number of Contracts	17	17	17	17	17
Aggregate Notional Amount | £		£ 129,948
Foreign exchange contracts | GBP | Short
Derivatives
Number of Contracts	221	221	221	221	221
Aggregate Notional Amount | £		£ 668,887
Foreign exchange contracts | AUD | Long
Derivatives
Number of Contracts	12	12	12	12	12
Aggregate Notional Amount | $			$ 822,069
Foreign exchange contracts | AUD | Short
Derivatives
Number of Contracts	133	133	133	133	133
Aggregate Notional Amount | $			$ 1,704,744
Foreign exchange contracts | CHF | Short
Derivatives
Number of Contracts	65	65	65	65	65
Aggregate Notional Amount | SFr				SFr 20,423
Interest rate swaps – Paying fixed rates | USD
Derivatives
Number of Contracts	51	51	51	51	51
Aggregate Notional Amount | $					$ 4,456,559
Interest rate swaps – Receiving fixed rates | USD
Derivatives
Number of Contracts	2	2	2	2	2
Aggregate Notional Amount | $					$ 970,000
Interest rate caps | GBP
Derivatives
Number of Contracts	1	1	1	1	1
Aggregate Notional Amount | £		£ 61,000
Interest rate caps | USD
Derivatives
Number of Contracts	4	4	4	4	4
Aggregate Notional Amount | $					$ 624,499
Credit instruments | USD
Derivatives
Number of Contracts	3	3	3	3	3
Aggregate Notional Amount | $					$ 49,000
Interest rate swap guarantees | USD
Derivatives
Number of Contracts	1	1	1	1	1
Aggregate Notional Amount | $					$ 100,456