Fair Value Measurements - Assets and Liabilities Not Measured and Reported at Fair Value on a Recurring Basis or Nonrecurring Basis (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Financial assets
Securities held to maturity	$ 1,204,079	$ 1,206,540
Securities available for sale	1,507,907	1,533,942
Loans held for sale	159,318	110,105
Loans, net	11,571,133	11,386,214
Mortgage servicing rights	85,039	84,448
Derivative instruments	31,041	36,493
Financial liabilities
Derivative instruments	20,866	22,056
Carrying Value
Financial assets
Cash and cash equivalents	847,697	575,992
Securities held to maturity	1,300,240	1,324,040
Securities available for sale	1,507,907	1,533,942
Loans held for sale	159,318	110,105
Loans, net	11,571,133	11,386,214
Mortgage servicing rights	85,039	84,448
Derivative instruments	36,602	38,047
Financial liabilities
Deposits	13,912,019	13,486,966
Short-term borrowings	732,057	712,232
Junior subordinated debentures	112,276	112,042
Subordinated notes	318,835	316,091
Derivative instruments	29,128	33,185
Fair Value
Financial assets
Cash and cash equivalents	847,697	575,992
Securities held to maturity	1,204,079	1,206,540
Securities available for sale	1,507,907	1,533,942
Loans held for sale	159,318	110,105
Loans, net	11,117,319	10,850,181
Mortgage servicing rights	119,556	122,454
Derivative instruments	36,602	38,047
Financial liabilities
Deposits	13,876,366	13,445,417
Short-term borrowings	732,057	712,232
Junior subordinated debentures	94,423	98,754
Subordinated notes	263,350	277,500
Derivative instruments	29,128	33,185
Fair Value \| Level 1
Financial assets
Cash and cash equivalents	847,697	575,992
Securities held to maturity	0	0
Securities available for sale	0	0
Loans held for sale	0	0
Loans, net	0	0
Mortgage servicing rights	0	0
Derivative instruments	0	0
Financial liabilities
Deposits	11,409,503	11,791,526
Short-term borrowings	732,057	712,232
Junior subordinated debentures	0	0
Subordinated notes	0	0
Derivative instruments	0	0
Fair Value \| Level 2
Financial assets
Cash and cash equivalents	0	0
Securities held to maturity	1,204,079	1,206,540
Securities available for sale	1,507,907	1,533,942
Loans held for sale	159,318	110,105
Loans, net	0	0
Mortgage servicing rights	0	0
Derivative instruments	36,602	38,047
Financial liabilities
Deposits	2,466,863	1,653,891
Short-term borrowings	0	0
Junior subordinated debentures	94,423	98,754
Subordinated notes	263,350	277,500
Derivative instruments	29,128	33,185
Fair Value \| Level 3
Financial assets
Cash and cash equivalents	0	0
Securities held to maturity	0	0
Securities available for sale	0	0
Loans held for sale	0	0
Loans, net	11,117,319	10,850,181
Mortgage servicing rights	119,556	122,454
Derivative instruments	0	0
Financial liabilities
Deposits	0	0
Short-term borrowings	0	0
Junior subordinated debentures	0	0
Subordinated notes	0	0
Derivative instruments	$ 0	$ 0

Junior Subordinated Debt Obligations, Fair Value Disclosure

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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- Definition

Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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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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No definition available.

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Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset.

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Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

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- Definition

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

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Fair value of investment in debt security measured at amortized cost (held-to-maturity).

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- Definition

Amount, after valuation allowance, of financing receivable held for sale and not part of disposal group. Excludes loan covered under loss sharing agreement and loan classified as investment in debt security.

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- Definition

Amortized cost, after allowance for credit loss, of financing receivable. Excludes financing receivable covered under loss sharing agreement and net investment in lease.

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- Definition

Amortized amount of contract to service financial assets under which the benefits of servicing are expected to more than adequately compensate the servicer.

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- Definition

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents the amount of short-term debt existing as of the balance sheet date.

+ References

No definition available.

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