Loans - Loans Outstanding by Portfolio Class (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan Balance	$ 3,978,382	$ 3,634,596
Allowance for loan losses	(55,090)	(17,667)
Net loans	3,923,292
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan Balance	2,312,715	2,047,646
Real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan Balance	1,004,796	920,998
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan Balance	660,871	665,952
Owner occupied real estate \| Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan Balance	501,198	519,577
Non-owner occupied real estate \| Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan Balance	1,009,116	973,331
Residential spec homes \| Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan Balance	12,036
Development & spec land \| Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan Balance	28,987	35,954
Commercial and industrial \| Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan Balance	761,378	505,859
Residential mortgage \| Real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan Balance	682,695	751,019
Residential construction \| Real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan Balance	21,715	19,686
Mortgage warehouse \| Real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan Balance	300,386	150,293
Direct installment \| Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan Balance	39,515	41,079
Indirect installment \| Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan Balance	360,641	348,658
Home equity \| Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan Balance	$ 260,715	$ 276,215

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Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements and loans held for sale.

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