Derivative Instruments and Hedging Activities - Balance Sheet Disclosures (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Interest rate swaps
Derivative [Line Items]
Other Assets	$ 0	$ 0
Other Liabilities	577,209	594,476
Interest rate swaps
Derivative [Line Items]
Notional Amount	600,000
Derivatives designated as hedging instruments:
Derivative [Line Items]
Notional Amount	300,000	900,000
Derivatives designated as hedging instruments: | Other Assets
Derivative [Line Items]
Other Assets	0	3,971
Derivatives designated as hedging instruments: | Other Liabilities
Derivative [Line Items]
Other Liabilities	28,992	29,798
Derivatives designated as hedging instruments: | Cash flow hedge interest rate swaps | Interest rate swaps
Derivative [Line Items]
Notional Amount	0	600,000
Derivatives designated as hedging instruments: | Cash flow hedge interest rate swaps | Interest rate swaps | Other Assets
Derivative [Line Items]
Other Assets	0	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	28,992	29,794
Derivatives not designated as hedging instruments:
Derivative [Line Items]
Notional Amount	17,274,718	16,058,364
Derivatives not designated as hedging instruments: | Other Assets
Derivative [Line Items]
Other Assets	571,620	463,156
Derivatives not designated as hedging instruments: | Other Liabilities
Derivative [Line Items]
Other Liabilities	570,234	577,439
Derivatives not designated as hedging instruments: | Interest rate swaps
Derivative [Line Items]
Notional Amount	15,837,195	14,753,330
Derivatives not designated as hedging instruments: | Interest rate swaps | Other Assets
Derivative [Line Items]
Other Assets	548,592	449,280
Derivatives not designated as hedging instruments: | Interest rate swaps | Other Liabilities
Derivative [Line Items]
Other Liabilities	548,217	564,678
Derivatives not designated as hedging instruments: | Foreign currency derivatives
Derivative [Line Items]
Notional Amount	1,331,575	1,273,735
Derivatives not designated as hedging instruments: | Foreign currency derivatives | Other Assets
Derivative [Line Items]
Other Assets	22,635	13,709
Derivatives not designated as hedging instruments: | Foreign currency derivatives | Other Liabilities
Derivative [Line Items]
Other Liabilities	21,710	12,604
Derivatives not designated as hedging instruments: | Mortgage banking derivatives
Derivative [Line Items]
Notional Amount	105,948	31,299
Derivatives not designated as hedging instruments: | Mortgage banking derivatives | Other Assets
Derivative [Line Items]
Other Assets	393	167
Derivatives not designated as hedging instruments: | Mortgage banking derivatives | Other Liabilities
Derivative [Line Items]
Other Liabilities	307	$ 157
Derivatives not designated as hedging instruments: | Fair value hedge interest rate swaps | Interest rate swaps
Derivative [Line Items]
Notional Amount	$ 10,400