Fair Value Measurements - Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Financial assets:
Securities available for sale	$ 764,844	$ 923,279
Derivative instruments	24,514	29,284
Financial liabilities:
Derivative instruments:	20,661	26,425
Recurring
Financial assets:
Derivative instruments	39,963	37,151
Mortgage loans held for sale in loans held for sale	291,735	179,756
Total financial assets	1,096,542	1,140,186
Financial liabilities:
Derivative instruments:	34,555	33,608
Recurring | Securities available for sale
Financial assets:
Securities available for sale	764,844	923,279
Recurring | Level 1
Financial assets:
Derivative instruments	0	0
Mortgage loans held for sale in loans held for sale	0	0
Total financial assets	0	0
Financial liabilities:
Derivative instruments:	0	0
Recurring | Level 1 | Securities available for sale
Financial assets:
Securities available for sale	0	0
Recurring | Level 2
Financial assets:
Derivative instruments	39,963	37,151
Mortgage loans held for sale in loans held for sale	291,735	179,756
Total financial assets	1,096,542	1,140,186
Financial liabilities:
Derivative instruments:	34,555	33,608
Recurring | Level 2 | Securities available for sale
Financial assets:
Securities available for sale	764,844	923,279
Recurring | Level 3
Financial assets:
Derivative instruments	0	0
Mortgage loans held for sale in loans held for sale	0	0
Total financial assets	0	0
Financial liabilities:
Derivative instruments:	0	0
Recurring | Level 3 | Securities available for sale
Financial assets:
Securities available for sale	$ 0	$ 0