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Borrowings - Summary of Borrowed Funds (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Debt Instrument, Redemption [Line Items]
Federal Home Loan Bank ("FHLB") advances, repurchase obligations and other borrowings	$ 894,581	$ 309,801
FHLB
Debt Instrument, Redemption [Line Items]
Net amounts available under the blanket floating lien	709,700	982,200
FHLB advances
Debt Instrument, Redemption [Line Items]
Federal Home Loan Bank ("FHLB") advances, repurchase obligations and other borrowings	256,871	256,999
GNMA repurchase liability
Debt Instrument, Redemption [Line Items]
Federal Home Loan Bank ("FHLB") advances, repurchase obligations and other borrowings	30,653	43,355
Subordinated indebtedness, net
Debt Instrument, Redemption [Line Items]
Subordinated indebtedness, net	157,540	157,417
Overnight repurchase agreements with depositors
Debt Instrument, Redemption [Line Items]
Federal Home Loan Bank ("FHLB") advances, repurchase obligations and other borrowings	7,057	9,447
FHLB advances
Debt Instrument, Redemption [Line Items]
Federal Home Loan Bank ("FHLB") advances, repurchase obligations and other borrowings	$ 600,000	$ 0

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