Derivative Instruments and Hedging Activities - Balance Sheet Disclosures (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Interest rate swaps
Derivative [Line Items]
Other Assets	$ 0	$ 0
Other Liabilities	188,244	50,922
Interest rate swaps
Derivative [Line Items]
Notional Amount	500,000
Derivatives designated as hedging instruments:
Derivative [Line Items]
Notional Amount	500,000	1,000,000
Derivatives designated as hedging instruments: | Other Assets
Derivative [Line Items]
Other Assets	590	0
Derivatives designated as hedging instruments: | Other Liabilities
Derivative [Line Items]
Other Liabilities	16,634	3,645
Derivatives designated as hedging instruments: | Cash flow hedge interest rate swaps | Interest rate swaps
Derivative [Line Items]
Notional Amount	200,000	700,000
Derivatives designated as hedging instruments: | Cash flow hedge interest rate swaps | Interest rate swaps | Other Assets
Derivative [Line Items]
Other Assets	590	0
Derivatives designated as hedging instruments: | Cash flow hedge interest rate swaps | Interest rate swaps | Other Liabilities
Derivative [Line Items]
Other Liabilities	0	310
Derivatives designated as hedging instruments: | Fair value hedge | Interest rate swaps
Derivative [Line Items]
Notional Amount	300,000	300,000
Derivatives designated as hedging instruments: | Fair value hedge | Interest rate swaps | Other Assets
Derivative [Line Items]
Other Assets	0	0
Derivatives designated as hedging instruments: | Fair value hedge | Interest rate swaps | Other Liabilities
Derivative [Line Items]
Other Liabilities	16,634	3,335
Derivatives not designated as hedging instruments:
Derivative [Line Items]
Notional Amount	11,445,618	10,613,888
Derivatives not designated as hedging instruments: | Other Assets
Derivative [Line Items]
Other Assets	175,680	181,500
Derivatives not designated as hedging instruments: | Other Liabilities
Derivative [Line Items]
Other Liabilities	173,048	48,731
Derivatives not designated as hedging instruments: | Interest rate swaps
Derivative [Line Items]
Notional Amount	11,264,601	10,301,460
Derivatives not designated as hedging instruments: | Interest rate swaps | Other Assets
Derivative [Line Items]
Other Assets	172,393	181,012
Derivatives not designated as hedging instruments: | Interest rate swaps | Other Liabilities
Derivative [Line Items]
Other Liabilities	171,610	47,277
Derivatives not designated as hedging instruments: | Mortgage banking derivatives
Derivative [Line Items]
Notional Amount	181,017	312,428
Derivatives not designated as hedging instruments: | Mortgage banking derivatives | Other Assets
Derivative [Line Items]
Other Assets	3,287	488
Derivatives not designated as hedging instruments: | Mortgage banking derivatives | Other Liabilities
Derivative [Line Items]
Other Liabilities	1,438	$ 1,454
Derivatives not designated as hedging instruments: | Fair value hedge | Interest rate swaps
Derivative [Line Items]
Notional Amount	$ 10,400