Fair Value Measurement (Tables)

3 Months Ended

Mar. 31, 2021

Fair Value Disclosures [Abstract]

Summary of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis

The following tables summarize the Company’s financial assets and liabilities that were measured at fair value on a recurring basis at March 31, 2021 and December 31, 2020:

			Fair Value Measurements Using
March 31, 2021	Fair Value		Level 1		Level 2		Level 3
Financial assets
Securities available-for-sale
U.S. Treasury Notes	$	13,718	$	13,718	$	—	$	—
U.S. Government agencies		139,585		—		139,585		—
Obligations of states, municipalities, and political    subdivisions		106,528		—		106,528		—
Mortgage-backed securities; residential
Agency		971,092		—		971,092		—
Non-Agency		67,950		—		67,950		—
Mortgage-backed securities; commercial
Agency		269,211		—		269,211		—
Corporate securities		62,552		—		62,552		—
Asset-backed securities		45,271		—		45,271		—
Equity and other securities, at fair value
Mutual funds		2,939		2,939		—		—
Equity securities		5,618		—		4,932		686
Servicing assets		22,140		—		—		22,140
Derivative assets		16,949		—		16,949		—
Financial liabilities
Derivative liabilities		12,380		—		12,380		—

			Fair Value Measurements Using
December 31, 2020	Fair Value		Level 1		Level 2		Level 3
Financial assets
Securities available-for-sale
U.S. Treasury Notes	$	23,812	$	23,812	$	—	$	—
U.S. Government agencies		113,551		—		113,551		—
Obligations of states, municipalities, and political    subdivisions		142,419		—		142,419
Mortgage-backed securities; residential
Agency		778,391		—		778,391		—
Non-Agency		32,981		—		32,981		—
Mortgage-backed securities; commercial
Agency		250,152		—		250,152		—
Corporate securities		60,768		—		60,768		—
Asset-backed securities		45,156		—		45,156		—
Equity and other securities, at fair value
Mutual funds		2,983		2,983		—		—
Equity securities		5,781		—		5,096		685
Servicing assets		22,042		—		—		22,042
Derivative assets		17,149		—		17,149		—
Financial liabilities
Derivative liabilities		18,133		—		18,133		—

Summary of Financial Assets Measured at Fair Value on Recurring Basis Using Significant Unobservable Inputs

The following table presents additional information about financial assets measured at fair value on recurring basis for which the Company used significant unobservable inputs (Level 3):

	Three Months Ended March 31,
	2021		2020			2021			2020
	Investment Securities					Servicing Assets
Balance, beginning of period	$	685	$	700		$	22,042		$	19,471
Additions, net		—		—			1,603			1,393
Change in fair value		1		(20	)		(1,505	)		(3,064	)
Balance, end of period	$	686	$	680		$	22,140		$	17,800

Summary of Unobservable Inputs Used in the Fair Value Measurements on Recurring Basis

The following table presents additional information about the unobservable inputs used in the fair value measurements on recurring basis that were categorized within Level 3 of the fair value hierarchy as of March 31, 2021:

Financial Instruments	Valuation Technique	Unobservable Inputs	Range of Inputs	Weighted Average Range			Impact to Valuation from an Increased or Higher Input Value
Single issuer trust preferred	Discounted cash flow	Discount rate	3.2% - 6.4%		4.6	%	Decrease
Servicing assets	Discounted cash flow	Prepayment speeds	0.1% - 31.6%		15.1	%	Decrease
		Discount rate	0.7% - 49.9%		9.9	%	Decrease
		Expected weighted average loan life	0.3 - 8.6 years	3.7 years			Increase

Summary of Assets Measured at Fair Value on Non-Recurring Basis, Excluding Acquired Impaired Loans

The following tables summarize the Company’s assets that were measured at fair value on a non-recurring basis, excluding acquired impaired loans, as of March 31, 2021 and December 31, 2020:

			Fair Value Measurements Using
March 31, 2021	Fair Value		Level 1		Level 2		Level 3
Non-recurring
Impaired loans (excluding acquired impaired loans)
Commercial real estate	$	47,012	$	—	$	—	$	47,012
Residential real estate		1,608		—		—		1,608
Commercial and industrial		24,482		—		—		24,482
Assets held for sale		11,845		—		—		11,845
Other real estate owned		5,952		—		—		5,952

			Fair Value Measurements Using
December 31, 2020	Fair Value		Level 1		Level 2		Level 3
Non-recurring
Impaired loans (excluding acquired impaired loans)
Commercial real estate	$	41,135	$	—	$	—	$	41,135
Residential real estate		1,752		—		—		1,752
Commercial and industrial		28,508		—		—		28,508
Assets held for sale		13,023		—		—		13,023
Other real estate owned		6,350		—		—		6,350

Summary of Estimated Fair Values of Financial Instruments

The estimated fair values of financial instruments not carried at fair value and levels within the fair value hierarchy are as follows:

			March 31,				December 31,
	Fair Value		2021				2020
	Hierarchy Level		Carrying Amount		Estimated Fair Value		Carrying Amount		Estimated Fair Value
Financial assets
Cash and due from banks		1	$	47,101	$	47,101	$	41,432	$	41,432
Interest bearing deposits with other banks		2		66,038		66,038		41,988		41,988
Securities held-to-maturity		2		3,892		4,066		4,395		4,573
Other restricted stock		2		19,057		19,057		10,507		10,507
Loans held for sale		3		28,584		32,408		7,924		8,848
Loans and lease receivables, net (less impaired loans    at fair value		3		4,315,928		4,315,239		4,202,793		4,205,906
Accrued interest receivable		3		21,765		21,765		20,678		20,678
Financial liabilities
Non-interest-bearing deposits		2		2,015,643		2,015,643		1,762,676		1,762,676
Interest-bearing deposits		2		3,008,897		3,009,901		2,989,355		2,990,735
Accrued interest payable		2		2,267		2,267		1,478		1,478
Paycheck Protection Program Liquidity Facility		2		387,647		387,647		371,907		371,907
Federal Home Loan Bank advances		2		329,000		329,000		234,000		234,000
Securities sold under repurchase agreement		2		33,072		33,072		41,994		41,994
Subordinated notes		2		73,386		75,832		73,342		76,627
Junior subordinated debentures		3		36,565		40,807		36,451		40,543