LOANS AND LEASES - Additional Information (Details)	3 Months Ended			6 Months Ended
	Jun. 30, 2021 USD ($)	Mar. 31, 2021 USD ($) loans	Jun. 30, 2020 USD ($)	Jun. 30, 2021 USD ($) loans	Jun. 30, 2020 USD ($) loans	Dec. 31, 2020 USD ($)	Mar. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans				27	32
Financing Receivable, Troubled Debt Restructuring, Subsequent Default	$ 0		$ 0	$ 0	$ 0
Financing Receivable, Troubled Debt Restructuring, Subsequent Default, Number of Contracts | loans				0	0
Restructured Loans, Portion Determined to be Uncollectible	0		700,000	$ 30,000	$ 1,100,000
Restructured Loans, Nonaccrual Status	21,500,000			21,500,000		$ 14,700,000
Real Estate Acquired Through Foreclosure	340,000	$ 854,000	$ 1,872,000	340,000	$ 1,872,000	1,287,000	$ 1,467,000	$ 2,033,000
Troubled Debt Restructuring	33,600,000			33,600,000		21,800,000
Financing Receivable, Non-Troubled Debt Restructuring Modifications, Amount	181,700,000			$ 181,700,000		320,200,000
Total consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans				0	1
Commercial segment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans				5	7
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Restructured Loans, Loan Relationships, Review Threshold Amount Minimum				$ 250,000
Residential real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans				13	18
Restructured Loans, Loan Relationships, Review Threshold Amount Minimum				$ 250,000
Commercial segment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unearned fees	16,600,000			16,600,000		13,700,000
Paycheck Protection Program Amount of Funding	401,100,000			401,100,000		594,600,000
Payment Deferral [Member] | Hotel
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Non-Troubled Debt Restructuring Modifications, Amount	118,100,000			$ 118,100,000		186,200,000
Financing Receivable, Non-Troubled Debt Restructuring Modifications, Percent		58.20%		65.00%
Payment Deferral [Member] | Franchise
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Non-Troubled Debt Restructuring Modifications, Amount	34,700,000			$ 34,700,000		44,300,000
Financing Receivable, Non-Troubled Debt Restructuring Modifications, Percent		13.80%		19.10%
Payment Deferral [Member] | Interest only payments
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Non-Troubled Debt Restructuring Modifications, Amount	181,100,000			$ 181,100,000		291,500,000
Payment Deferral [Member] | Full principal and Interest payments
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Non-Troubled Debt Restructuring Modifications, Amount	600,000			$ 600,000		28,700,000
Payment Deferral [Member] | Total consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans		53		4
Troubled Debt Restructuring	600,000			$ 600,000		7,700,000
Payment Deferral [Member] | Commercial segment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans		90		28
Troubled Debt Restructuring	$ 181,100,000			$ 181,100,000		$ 312,500,000