Loans, Allowance for Credit Losses (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Analysis of allowance for loan losses by portfolio segment [Roll Forward]
Balance at beginning of period	$ 45,627	$ 46,755	$ 47,252	$ 35,429
Additions (deductions) [Abstract]
Provision for credit losses	2,221	(1,425)	648	(1,899)
Initial allowance on loans purchased with credit deterioration				134
Recoveries credited to the allowance	653	886	1,274	1,434
Loans charged against the allowance	(618)	(290)	(1,291)	(746)
Balance at end of period	47,883	45,926	47,883	45,926
Impact of Adoption [Member] \| ASU 2016-13 [Member]
Analysis of allowance for loan losses by portfolio segment [Roll Forward]
Balance at beginning of period				11,574
Commercial [Member]
Analysis of allowance for loan losses by portfolio segment [Roll Forward]
Balance at beginning of period	10,744	9,530	11,519	7,401
Additions (deductions) [Abstract]
Provision for credit losses	164	(946)	(688)	(1,622)
Initial allowance on loans purchased with credit deterioration				95
Recoveries credited to the allowance	151	510	228	669
Loans charged against the allowance	0	0	0	0
Balance at end of period	11,059	9,094	11,059	9,094
Commercial [Member] \| Impact of Adoption [Member] \| ASU 2016-13 [Member]
Analysis of allowance for loan losses by portfolio segment [Roll Forward]
Balance at beginning of period				2,551
Mortgage [Member]
Analysis of allowance for loan losses by portfolio segment [Roll Forward]
Balance at beginning of period	19,208	18,448	19,221	6,998
Additions (deductions) [Abstract]
Provision for credit losses	1,046	340	868	(280)
Initial allowance on loans purchased with credit deterioration				18
Recoveries credited to the allowance	97	169	268	381
Loans charged against the allowance	(38)	(24)	(44)	(184)
Balance at end of period	20,313	18,933	20,313	18,933
Mortgage [Member] \| Impact of Adoption [Member] \| ASU 2016-13 [Member]
Analysis of allowance for loan losses by portfolio segment [Roll Forward]
Balance at beginning of period				12,000
Installment [Member]
Analysis of allowance for loan losses by portfolio segment [Roll Forward]
Balance at beginning of period	3,604	3,979	3,749	1,112
Additions (deductions) [Abstract]
Provision for credit losses	791	(219)	940	(306)
Initial allowance on loans purchased with credit deterioration				21
Recoveries credited to the allowance	405	207	778	384
Loans charged against the allowance	(580)	(266)	(1,247)	(562)
Balance at end of period	4,220	3,701	4,220	3,701
Installment [Member] \| Impact of Adoption [Member] \| ASU 2016-13 [Member]
Analysis of allowance for loan losses by portfolio segment [Roll Forward]
Balance at beginning of period				3,052
Subjective Allocation [Member]
Analysis of allowance for loan losses by portfolio segment [Roll Forward]
Balance at beginning of period	12,071	14,798	12,763	19,918
Additions (deductions) [Abstract]
Provision for credit losses	220	(600)	(472)	309
Initial allowance on loans purchased with credit deterioration				0
Recoveries credited to the allowance	0	0	0	0
Loans charged against the allowance	0	0	0	0
Balance at end of period	$ 12,291	$ 14,198	$ 12,291	14,198
Subjective Allocation [Member] \| Impact of Adoption [Member] \| ASU 2016-13 [Member]
Analysis of allowance for loan losses by portfolio segment [Roll Forward]
Balance at beginning of period				$ (6,029)

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Amount of increase in allowance for credit loss on financing receivable purchased with credit deterioration.

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

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