FAIR VALUE (Schedule of Financial Instruments) (Details) - USD ($) $ in Thousands		Dec. 31, 2021	Dec. 31, 2020
Financial Assets:
Securities held to maturity (fair value $108,460 at December 31, 2021)		$ 108,680
Securities available for sale		796,753	$ 622,689
FHLB and FRB stock		12,950	13,709
Loans held for sale, at fair value		3,040	13,588
Loans held for sale, at lower of cost or fair value		34,051	18,520
Accrued interest receivable		21,589	22,495
Financial Liabilities:
Short-term borrowings			15,000
Paycheck Protection Program Liquidity Facility		0	177,086
Carrying Value [Member]
Financial Assets:
Cash and cash equivalents		146,804	653,322
Securities held to maturity (fair value $108,460 at December 31, 2021)		108,680
Securities available for sale		796,753	622,689
CRA investment fund		14,685	15,117
FHLB and FRB stock		12,950	13,709
Loans held for sale, at fair value		3,040	13,588
Loans held for sale, at lower of cost or fair value		34,051	18,520
Loans, net of allowance for loan losses		4,745,024	4,305,128
Accrued interest receivable		21,589	22,495
Financial Liabilities:
Deposits		5,266,149	4,818,484
Subordinated debt		132,701	181,794
Accrued interest payable		651	1,650
Short-term borrowings			15,000
Paycheck Protection Program Liquidity Facility			177,086
Fair value [Member]
Financial Assets:
Cash and cash equivalents		146,804	653,322
Securities held to maturity (fair value $108,460 at December 31, 2021)		108,460
Securities available for sale		796,753	622,689
CRA investment fund		14,685	15,117
Loans held for sale, at fair value		3,040	13,588
Loans held for sale, at lower of cost or fair value		37,538	19,115
Loans, net of allowance for loan losses		4,767,293	4,462,243
Accrued interest receivable		21,589	22,495
Financial Liabilities:
Deposits		5,268,000	4,826,406
Subordinated debt		140,556	183,348
Accrued interest payable		651	1,650
Short-term borrowings			15,000
Paycheck Protection Program Liquidity Facility			177,086
Fair value [Member] | Quoted Prices in Active Market For Identical Assets (Level 1) [Member]
Financial Assets:
Cash and cash equivalents		146,804	653,322
CRA investment fund		14,685	15,117
Financial Liabilities:
Deposits		4,791,341	4,222,370
Accrued interest payable		130	150
Fair value [Member] | Significant Other Observable Inputs (Level 2) [Member]
Financial Assets:
Securities held to maturity (fair value $108,460 at December 31, 2021)		108,460
Securities available for sale		796,753	622,689
Loans held for sale, at fair value		3,040	13,588
Loans held for sale, at lower of cost or fair value		37,538	19,115
Accrued interest receivable		2,443	1,653
Financial Liabilities:
Deposits		476,659	604,036
Accrued interest payable		446	1,347
Short-term borrowings			15,000
Paycheck Protection Program Liquidity Facility			177,086
Fair value [Member] | Significant Unobservable Inputs (Level 3) [Member]
Financial Assets:
Loans, net of allowance for loan losses		4,767,293	4,462,243
Accrued interest receivable		19,146	20,842
Financial Liabilities:
Subordinated debt		140,556	183,348
Accrued interest payable		75	153
Not Designated as Hedging Instrument [Member] | Carrying Value [Member]
Financial Assets:
Accrued interest receivable	[1]	4,842
Derivatives		32,326	79,529
Financial Liabilities:
Accrued interest payable	[2]	4,842
Derivatives		34,569	79,529
Not Designated as Hedging Instrument [Member] | Fair value [Member]
Financial Assets:
Accrued interest receivable	[1]	4,842
Derivatives		32,326	79,529
Financial Liabilities:
Accrued interest payable	[2]	4,842
Derivatives		34,569	79,529
Not Designated as Hedging Instrument [Member] | Fair value [Member] | Significant Other Observable Inputs (Level 2) [Member]
Financial Assets:
Accrued interest receivable	[1]	4,842
Derivatives		32,326	79,529
Financial Liabilities:
Accrued interest payable	[2]	4,842
Derivatives		34,569	79,529
Designated as Hedging Instrument [Member] | Carrying Value [Member]
Financial Liabilities:
Derivatives		3,479	9,616
Designated as Hedging Instrument [Member] | Fair value [Member]
Financial Liabilities:
Derivatives		3,479	9,616
Designated as Hedging Instrument [Member] | Fair value [Member] | Significant Other Observable Inputs (Level 2) [Member]
Financial Liabilities:
Derivatives		$ 3,479	$ 9,616

[1] Included in other assets in the Consolidated Statement of Condition

[2] Included in accrued expenses and other liabilities in the Consolidated Statement of Condition