Derivatives and Hedging Activities - Offsetting Derivative Assets and Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Derivative assets
Gross Amounts	$ 475,060	$ 424,516
Gross Amounts Offset in the Balance Sheet	0	0
Net Amounts	475,060	424,516
Gross Amounts not Offset in the Balance Sheet	(32,408)	(34,429)
Net	442,652	390,087
Derivative liabilities
Gross Amounts	34,284	39,234
Gross Amounts Offset in the Balance Sheet	0	0
Net Amounts	34,284	39,234
Gross Amounts not Offset in the Balance Sheet	(32,408)	(34,429)
Net	$ 1,876	$ 4,805