Fair Value - Summary of Carrying Value and Fair Value of Company's Financial Instruments (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Financial Assets
Held-to-maturity debt securities	$ 638,640	$ 184,484
Level 1
Financial Assets
Held-to-maturity debt securities	0	0
Time deposits with other banks		0
Loans, net	0	0
Financial Liabilities
Deposits	0	0
Subordinated debt	0	0
Level 2
Financial Assets
Held-to-maturity debt securities	627,398	192,179
Time deposits with other banks		762
Loans, net	0	0
Financial Liabilities
Deposits	0	0
Subordinated debt	69,348	58,227
Level 3
Financial Assets
Held-to-maturity debt securities	0	0
Time deposits with other banks		0
Loans, net	5,907,447	5,686,019
Financial Liabilities
Deposits	8,067,995	6,936,097
Subordinated debt	0	0
Carrying Amount
Financial Assets
Held-to-maturity debt securities	638,640	184,484
Time deposits with other banks		750
Loans, net	5,833,271	5,633,810
Financial Liabilities
Deposits	8,067,589	6,932,561
Subordinated debt	$ 71,646	$ 71,365

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Fair value portion of deposit liabilities held by the entity, including, but not limited to, foreign and domestic, interest and noninterest bearing, demand deposits, saving deposits, negotiable orders of withdrawal (NOW) and time deposits.

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Amount of interest-bearing funds deposited into another Federal Home Loan Banks (FHLBanks).

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Fair value of subordinated debt obligations including, but not limited to, subordinated loan, subordinated bond, subordinated debenture or junior debt.

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Amount, before allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity).

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Amount, after allowance for credit loss, of financing receivable. Excludes financing receivable covered under loss sharing agreement.

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