LOANS AND LEASES - Investment in Impaired Loans (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Financing Receivable, Impaired [Line Items]
Current balance	$ 50,299		$ 50,299		$ 56,873
Contractual Principal Balance	59,230		59,230		66,066
Related Allowance	1,674		1,674		1,573
Average current balance	51,218	$ 62,171	53,103	$ 62,912
Interest income recognized	305	244	613	547
Commercial
Financing Receivable, Impaired [Line Items]
Current balance	13,687		13,687		17,411
Contractual Principal Balance	14,470		14,470		18,576
Related Allowance	529		529		357
Average current balance	14,086	10,557	15,194	10,374
Interest income recognized	84	68	167	116
Real estate - construction
Financing Receivable, Impaired [Line Items]
Current balance	0		0		0
Contractual Principal Balance	0		0		0
Related Allowance	0		0		0
Average current balance	0	223	0	223
Interest income recognized	0	0	0	0
Real estate - commercial
Financing Receivable, Impaired [Line Items]
Current balance	20,938		20,938		24,652
Contractual Principal Balance	25,773		25,773		29,185
Related Allowance	251		251		979
Average current balance	21,958	35,621	22,856	35,656
Interest income recognized	131	100	278	277
Residential - real estate
Financing Receivable, Impaired [Line Items]
Current balance	9,087		9,087		8,994
Contractual Principal Balance	10,313		10,313		10,367
Related Allowance	200		200		235
Average current balance	8,875	9,807	8,915	10,398
Interest income recognized	57	54	112	110
Home equity
Financing Receivable, Impaired [Line Items]
Current balance	4,884		4,884		5,441
Contractual Principal Balance	6,953		6,953		7,540
Related Allowance	2		2		2
Average current balance	5,277	5,610	5,332	5,855
Interest income recognized	22	20	44	40
Installment
Financing Receivable, Impaired [Line Items]
Current balance	536		536		253
Contractual Principal Balance	554		554		276
Related Allowance	0		0		0
Average current balance	378	353	336	406
Interest income recognized	2	2	3	4
Other
Financing Receivable, Impaired [Line Items]
Current balance	1,167		1,167		122
Contractual Principal Balance	1,167		1,167		122
Related Allowance	692		692		0
Average current balance	644	0	470	0
Interest income recognized	9	$ 0	9	$ 0
Loans with no related allowance recorded [member]
Financing Receivable, Impaired [Line Items]
Current balance	41,475		41,475		45,881
Contractual Principal Balance	50,391		50,391		54,521
Related Allowance	0		0		0
Loans with no related allowance recorded [member] | Commercial
Financing Receivable, Impaired [Line Items]
Current balance	12,532		12,532		16,418
Contractual Principal Balance	13,315		13,315		17,398
Related Allowance	0		0		0
Loans with no related allowance recorded [member] | Real estate - construction
Financing Receivable, Impaired [Line Items]
Current balance	0		0		0
Contractual Principal Balance	0		0		0
Related Allowance	0		0		0
Loans with no related allowance recorded [member] | Real estate - commercial
Financing Receivable, Impaired [Line Items]
Current balance	15,844		15,844		16,301
Contractual Principal Balance	20,679		20,679		20,479
Related Allowance	0		0		0
Loans with no related allowance recorded [member] | Residential - real estate
Financing Receivable, Impaired [Line Items]
Current balance	7,684		7,684		7,447
Contractual Principal Balance	8,895		8,895		8,807
Related Allowance	0		0		0
Loans with no related allowance recorded [member] | Home equity
Financing Receivable, Impaired [Line Items]
Current balance	4,783		4,783		5,340
Contractual Principal Balance	6,852		6,852		7,439
Related Allowance	0		0		0
Loans with no related allowance recorded [member] | Installment
Financing Receivable, Impaired [Line Items]
Current balance	536		536		253
Contractual Principal Balance	554		554		276
Related Allowance	0		0		0
Loans with no related allowance recorded [member] | Other
Financing Receivable, Impaired [Line Items]
Current balance	96		96		122
Contractual Principal Balance	96		96		122
Related Allowance	0		0		0
Impaired Financing Receivables With Related Allowance [Member]
Financing Receivable, Impaired [Line Items]
Current balance	8,824		8,824		10,992
Contractual Principal Balance	8,839		8,839		11,545
Related Allowance	1,674		1,674		1,573
Impaired Financing Receivables With Related Allowance [Member] | Commercial
Financing Receivable, Impaired [Line Items]
Current balance	1,155		1,155		993
Contractual Principal Balance	1,155		1,155		1,178
Related Allowance	529		529		357
Impaired Financing Receivables With Related Allowance [Member] | Real estate - construction
Financing Receivable, Impaired [Line Items]
Current balance	0		0		0
Contractual Principal Balance	0		0		0
Related Allowance	0		0		0
Impaired Financing Receivables With Related Allowance [Member] | Real estate - commercial
Financing Receivable, Impaired [Line Items]
Current balance	5,094		5,094		8,351
Contractual Principal Balance	5,094		5,094		8,706
Related Allowance	251		251		979
Impaired Financing Receivables With Related Allowance [Member] | Residential - real estate
Financing Receivable, Impaired [Line Items]
Current balance	1,403		1,403		1,547
Contractual Principal Balance	1,418		1,418		1,560
Related Allowance	200		200		235
Impaired Financing Receivables With Related Allowance [Member] | Home equity
Financing Receivable, Impaired [Line Items]
Current balance	101		101		101
Contractual Principal Balance	101		101		101
Related Allowance	2		2		2
Impaired Financing Receivables With Related Allowance [Member] | Installment
Financing Receivable, Impaired [Line Items]
Current balance	0		0		0
Contractual Principal Balance	0		0		0
Related Allowance	0		0		0
Impaired Financing Receivables With Related Allowance [Member] | Other
Financing Receivable, Impaired [Line Items]
Current balance	1,071		1,071		0
Contractual Principal Balance	1,071		1,071		0
Related Allowance	$ 692		$ 692		$ 0