Derivative Financial Instruments - Schedule of Effect of Derivative Instruments on the Consolidated Statements of Income (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Recognized in Other Comprehensive Income on Derivative	$ (3,418)	$ (1,272)	$ (12,924)	$ 2,776
Gain (Loss) Reclassified from AOCI into Income	219	1,756	888	1,905
Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Recognized in Income on Derivative	(989)	(5,738)	(386)	(2,056)
Fair value hedges
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Recognized in Income on Derivative	51,255	(47,080)	104,076	(2,817)
Gain (Loss) Recognized in Income on Related Hedged Items	(51,162)	46,732	(104,236)	2,765
Interest rate contracts \| Other income/(expense) \| Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Recognized in Income on Derivative	449	(75)	950	310
Interest rate contracts \| Interest income/(expense)
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Recognized in Other Comprehensive Income on Derivative	(3,418)	(1,272)	(12,924)	2,776
Gain (Loss) Reclassified from AOCI into Income	219	1,756	888	1,905
Mortgage contracts \| Mortgage banking revenue \| Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Recognized in Income on Derivative	(1,503)	(5,578)	(1,374)	(2,317)
Foreign currency contracts \| Other income/(expense) \| Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Recognized in Income on Derivative	65	(85)	38	(49)
Interest rate swaps on borrowings \| Interest income/(expense) \| Fair value hedges
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Recognized in Income on Derivative	(2,524)	(1,251)	(7,357)	(2,826)
Gain (Loss) Recognized in Income on Related Hedged Items	2,600	1,251	7,555	2,829
Interest rate swaps on investment securities \| Interest income/(expense) \| Fair value hedges
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Recognized in Income on Derivative	53,779	(45,829)	111,433	9
Gain (Loss) Recognized in Income on Related Hedged Items	$ (53,762)	$ 45,481	$ (111,791)	$ (64)

Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

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Total amount of gain (loss) derived from fair value hedges recognized in earnings in the period.

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Amount, before tax and reclassification, of gain (loss) from derivative instrument designated and qualifying cash flow hedge included in assessment of hedge effectiveness.

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Amount, before tax, of reclassification of gain (loss) from accumulated other comprehensive income (AOCI) for derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness.

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