Loans (Narrative) (Details) - USD ($) $ in Thousands			3 Months Ended		9 Months Ended
	Sep. 17, 2021	Apr. 01, 2021	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Jun. 30, 2021	Dec. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, net of deferred fees and costs (b)			$ 4,491,028		$ 4,491,028			$ 3,402,940
Financing Receivable, Nonaccrual, No Allowance			600		600			1,300
Provision for Loan, Lease, and Other Losses			8,994	$ 4,728	7,333	$ 33,531
Off-Balance Sheet, Credit Loss, Liability			2,400		2,400		$ 2,200	2,900
Financing Receivable, Nonaccrual			36,034		36,034			25,793
Financing Receivable, Allowance for Credit Loss, Purchased with Credit Deterioration, Increase			22,334		22,827	2,686
90 + Days
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest Income, Financing Receivable, before Allowance for Credit Loss			200		900
North Star Leasing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, net of deferred fees and costs (b)		$ 83,300
Financing Receivable, Purchased with Credit Deterioration, Amount at Par Value		5,248
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		83,300
Financing Receivable, Allowance for Credit Loss, Purchased with Credit Deterioration, Increase	$ 500
Premier Financial Bancorp, Inc.
Accounts, Notes, Loans and Financing Receivable [Line Items]
Provision for Loan, Lease, and Other Losses	11,000
Off-Balance Sheet, Credit Loss, Liability	400
Financing Receivable, Purchased with Credit Deterioration, Amount at Par Value	285,328
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	1,174,826
Financing Receivable, Nonaccrual			13,000		13,000
Financing Receivable, Allowance for Credit Loss, Purchased with Credit Deterioration, Increase	22,334
Business Combination, Acquired Receivable, Fair Value	$ 1,133,890
Paycheck Protection Program [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unamortized Loan Commitment and Origination Fees and Unamortized Discounts or Premiums			4,000		4,000
Amortization of Deferred Loan Origination Fees, Net			3,800	1,900	11,200	3,800
Loans and Leases Receivable, Gross			159,200		159,200			488,900
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss			135,800		135,800
Total loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, net of deferred fees and costs (b)			4,491,028		4,491,028			3,402,940
Interest Receivable			12,400		12,400			10,900
Provision for Loan, Lease, and Other Losses			(1,888)	$ 3,511	(6,255)	$ 30,677
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss			4,491,028		4,491,028			3,402,940
Finance Leases Portfolio Segment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, net of deferred fees and costs (b)			111,446		111,446
Provision for Loan, Lease, and Other Losses			1,101
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss			111,446		111,446			0
Financing Receivable, Nonaccrual			1,411		1,411			$ 0
Financing Receivable, Allowance for Credit Loss, Purchased with Credit Deterioration, Increase		493	0		$ 493
Finance Leases Portfolio Segment | North Star Leasing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Provision for Loan, Lease, and Other Losses		$ 3,288	$ 0