Loans and Allowance for Credit Losses - Loans - Internal Risk Ratings (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022	Mar. 31, 2022
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned interest	$ 4,034,510	$ 3,514,119	$ 3,171,307
Pass
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned interest	3,236,041	3,456,553
Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned interest	22,591	21,897
Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned interest	37,967	35,669
Commercial portfolio | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned interest	2,145,272	2,052,934	1,821,729
Commercial portfolio | Commercial real estate | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned interest	2,107,493	2,018,088
Commercial portfolio | Commercial real estate | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned interest	13,246	12,325
Commercial portfolio | Commercial real estate | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned interest	24,533	22,521
Commercial portfolio | Commercial and industrial
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned interest	635,929	596,042	549,374
Commercial portfolio | Commercial and industrial | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned interest	617,098	582,540
Commercial portfolio | Commercial and industrial | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned interest	7,653	4,212
Commercial portfolio | Commercial and industrial | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned interest	11,178	9,290
Commercial portfolio | Construction
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned interest	515,398	441,246	374,896
Commercial portfolio | Construction | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned interest	511,450	438,990
Commercial portfolio | Construction | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned interest	1,692	2,256
Commercial portfolio | Construction | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned interest	2,256	0
Consumer portfolio | Residential mortgage
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned interest	730,176	416,221	416,032
Consumer portfolio | Residential mortgage | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned interest		409,259
Consumer portfolio | Residential mortgage | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned interest		3,104
Consumer portfolio | Residential mortgage | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned interest		3,858
Consumer portfolio | Consumer
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned interest	$ 7,735	7,676	$ 9,276
Consumer portfolio | Consumer | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned interest		7,676
Consumer portfolio | Consumer | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned interest		0
Consumer portfolio | Consumer | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned interest		$ 0