Noninterest Income and Expense - Summary of Noninterest Income and Expense (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019
Noninterest income
Interchange income	$ 3,246	$ 3,401
Marine finance fees	146	362
SBA gains	139	636
BOLI income	886	915
Other income	3,352	2,266
Noninterest income, gross	14,669	12,845
Securities gains (losses), net	19	(9)
Total	14,688	12,836
Noninterest expense
Salaries and wages	23,698	18,506
Employee benefits	4,255	4,206
Outsourced data processing costs	4,633	3,845
Telephone/data lines	714	811
Occupancy	3,353	3,807
Furniture and equipment	1,623	1,757
Marketing	1,278	1,132
Legal and professional fees	3,363	2,847
FDIC assessments	0	488
Amortization of intangibles	1,456	1,458
Foreclosed property expense and net gain on sale	(315)	(40)
Other	3,740	4,282
Total	47,798	43,099
Service charges on deposit accounts
Noninterest income
Revenue from contracts with customers	2,825	2,697
Wealth management income
Noninterest income
Revenue from contracts with customers	1,867	1,453
Mortgage banking fees
Noninterest income
Revenue from contracts with customers	$ 2,208	$ 1,115

Federal deposit insurance corporation assessment.

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Interchange income.

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Non interest income excluding gain loss on loans sale and investments.

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