Derivative Instruments and Hedging Activities - Balance Sheet Disclosures (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Interest rate swaps
Derivative [Line Items]
Other Assets	$ 0	$ 0
Other Liabilities	485,366	594,476
Interest rate swaps
Derivative [Line Items]
Notional Amount	600,000
Derivatives designated as hedging instruments:
Derivative [Line Items]
Notional Amount	900,000	900,000
Derivatives designated as hedging instruments: | Other Assets
Derivative [Line Items]
Other Assets	7,866	3,971
Derivatives designated as hedging instruments: | Other Liabilities
Derivative [Line Items]
Other Liabilities	27,858	29,798
Derivatives designated as hedging instruments: | Cash flow hedge interest rate swaps | Interest rate swaps
Derivative [Line Items]
Notional Amount	600,000	600,000
Derivatives designated as hedging instruments: | Cash flow hedge interest rate swaps | Interest rate swaps | Other Assets
Derivative [Line Items]
Other Assets	7,866	3,971
Derivatives designated as hedging instruments: | Cash flow hedge interest rate swaps | Interest rate swaps | Other Liabilities
Derivative [Line Items]
Other Liabilities	0	4
Derivatives designated as hedging instruments: | Fair value hedge interest rate swaps | Interest rate swaps
Derivative [Line Items]
Notional Amount	300,000	300,000
Derivatives designated as hedging instruments: | Fair value hedge interest rate swaps | Interest rate swaps | Other Assets
Derivative [Line Items]
Other Assets	0	0
Derivatives designated as hedging instruments: | Fair value hedge interest rate swaps | Interest rate swaps | Other Liabilities
Derivative [Line Items]
Other Liabilities	27,858	29,794
Derivatives not designated as hedging instruments:
Derivative [Line Items]
Notional Amount	17,198,430	16,058,364
Derivatives not designated as hedging instruments: | Other Assets
Derivative [Line Items]
Other Assets	438,883	463,156
Derivatives not designated as hedging instruments: | Other Liabilities
Derivative [Line Items]
Other Liabilities	466,694	577,439
Derivatives not designated as hedging instruments: | Interest rate swaps
Derivative [Line Items]
Notional Amount	15,298,441	14,753,330
Derivatives not designated as hedging instruments: | Interest rate swaps | Other Assets
Derivative [Line Items]
Other Assets	429,195	449,280
Derivatives not designated as hedging instruments: | Interest rate swaps | Other Liabilities
Derivative [Line Items]
Other Liabilities	457,508	564,678
Derivatives not designated as hedging instruments: | Foreign currency derivatives
Derivative [Line Items]
Notional Amount	1,848,883	1,273,735
Derivatives not designated as hedging instruments: | Foreign currency derivatives | Other Assets
Derivative [Line Items]
Other Assets	9,540	13,709
Derivatives not designated as hedging instruments: | Foreign currency derivatives | Other Liabilities
Derivative [Line Items]
Other Liabilities	8,944	12,604
Derivatives not designated as hedging instruments: | Mortgage banking derivatives
Derivative [Line Items]
Notional Amount	51,106	31,299
Derivatives not designated as hedging instruments: | Mortgage banking derivatives | Other Assets
Derivative [Line Items]
Other Assets	148	167
Derivatives not designated as hedging instruments: | Mortgage banking derivatives | Other Liabilities
Derivative [Line Items]
Other Liabilities	242	$ 157
Derivatives not designated as hedging instruments: | Fair value hedge interest rate swaps | Interest rate swaps
Derivative [Line Items]
Notional Amount	$ 10,400