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Fair Value Measurements - Fair Value of Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Financial assets:
Securities available for sale, at fair value	$ 923,279	$ 1,533,942
Derivative instruments	29,284	36,493
Financial liabilities:
Derivative instruments	26,425	22,056
Recurring
Financial assets:
Securities available for sale, at fair value	923,279	1,533,942
Derivative instruments	37,151	38,047
Mortgage loans held for sale in loans held for sale	179,756	110,105
Total financial assets	1,140,186	1,682,094
Financial liabilities:
Derivative instruments	33,608	33,185
Recurring | Securities available for sale
Financial assets:
Securities available for sale, at fair value	923,279	1,533,942
Recurring | Level 1
Financial assets:
Securities available for sale, at fair value	0	0
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, at fair value	0	0
Recurring | Level 2
Financial assets:
Securities available for sale, at fair value	923,279	1,533,942
Derivative instruments	37,151	38,047
Mortgage loans held for sale in loans held for sale	179,756	110,105
Total financial assets	1,140,186	1,682,094
Financial liabilities:
Derivative instruments	33,608	33,185
Recurring | Level 2 | Securities available for sale
Financial assets:
Securities available for sale, at fair value	923,279	1,533,942
Recurring | Level 3
Financial assets:
Securities available for sale, at fair value	0	0
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, at fair value	$ 0	$ 0

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