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Derivatives (Derivatives Not Designated as Hedging Instruments - Foreign Exchange Contracts) (Details) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Derivative [Line Items] |  |
Derivative assets - Fair value | $ 484,184 | $ 602,754
Derivative liabilities - Fair Value | 390,171 | 424,828
Derivative instruments not designated as hedging instruments |  |
Derivative [Line Items] |  |
Notional amount | 19,522,661 | 21,341,158
Derivative assets - Fair value | 484,184 | 602,754
Derivative liabilities - Fair Value | 389,889 | 422,729
Derivative instruments not designated as hedging instruments | Foreign exchange contracts |  |
Derivative [Line Items] |  |
Notional amount | 1,874,681 | 3,108,488
Derivative assets - Fair value | 21,033 | 30,300
Derivative liabilities - Fair Value | 15,276 | 22,524
Foreign exchange contracts | Customer Counterparty | Derivative instruments not designated as hedging instruments | Forwards and spot |  |
Derivative [Line Items] |  |
Notional amount | 900,290 | 1,522,888
Derivative assets - Fair value | 13,688 | 17,575
Derivative liabilities - Fair Value | 9,446 | 17,928
Foreign exchange contracts | Customer Counterparty | Derivative instruments not designated as hedging instruments | Swaps |  |
Derivative [Line Items] |  |
Notional amount | 66,474 | 13,590
Derivative assets - Fair value | 1,034 | 872
Derivative liabilities - Fair Value | 17 | 91
Foreign exchange contracts | Customer Counterparty | Derivative instruments not designated as hedging instruments | Written options |  |
Derivative [Line Items] |  |
Notional amount | 20,287 | 117,729
Derivative assets - Fair value | 1 | 0
Derivative liabilities - Fair Value | 0 | 574
Foreign exchange contracts | Customer Counterparty | Derivative instruments not designated as hedging instruments | Foreign exchange contracts |  |
Derivative [Line Items] |  |
Notional amount | 987,051 | 1,654,207
Derivative assets - Fair value | 14,723 | 18,447
Derivative liabilities - Fair Value | 9,463 | 18,593
Foreign exchange contracts | Financial Counterparty | Derivative instruments not designated as hedging instruments | Forwards and spot |  |
Derivative [Line Items] |  |
Notional amount | 267,689 | 145,197
Derivative assets - Fair value | 1,564 | 1,230
Derivative liabilities - Fair Value | 2,695 | 273
Foreign exchange contracts | Financial Counterparty | Derivative instruments not designated as hedging instruments | Swaps |  |
Derivative [Line Items] |  |
Notional amount | 599,654 | 1,191,355
Derivative assets - Fair value | 4,745 | 10,049
Derivative liabilities - Fair Value | 3,116 | 3,658
Foreign exchange contracts | Financial Counterparty | Derivative instruments not designated as hedging instruments | Purchased options |  |
Derivative [Line Items] |  |
Notional amount | 20,287 | 117,729
Derivative assets - Fair value | 1 | 574
Derivative liabilities - Fair Value | 2 | 0
Foreign exchange contracts | Financial Counterparty | Derivative instruments not designated as hedging instruments | Foreign exchange contracts |  |
Derivative [Line Items] |  |
Notional amount | 887,630 | 1,454,281
Derivative assets - Fair value | 6,310 | 11,853
Derivative liabilities - Fair Value | $ 5,813 | $ 3,931

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