LOANS (Details 2) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Past due loans
Total loans	$ 3,889,072	$ 3,988,654
Business Loans
Past due loans
30-59 Days Past Due	10,782	8,023
60-89 Days Past Due	2,448	3,955
Greater Than 90 Days Past Due	25,667	26,566
Total Past Due	38,897	38,544
Current	2,577,261	2,587,092
Total loans	2,616,158	2,625,636
Past Due > 90 days and Accruing	3,688	3,458
Acquired Loans
Past due loans
30-59 Days Past Due	5,277	8,278
60-89 Days Past Due	5,204	5,048
Greater Than 90 Days Past Due	19,666	17,924
Total Past Due	30,147	31,250
Current	1,242,767	1,331,768
Total loans	1,272,914	1,363,018
Past Due > 90 days and Accruing	14,587	15,520
Residential mortgages
Past due loans
Total loans	1,234,616	1,324,251
Residential mortgages | Business Loans
Past due loans
30-59 Days Past Due	4,186	4,105
60-89 Days Past Due	1,107	1,501
Greater Than 90 Days Past Due	8,827	8,109
Total Past Due	14,120	13,715
Current	817,546	876,951
Total loans	831,666	890,666
Past Due > 90 days and Accruing	1,985	1,611
Residential mortgages | Acquired Loans
Past due loans
30-59 Days Past Due	862	1,817
60-89 Days Past Due	648	585
Greater Than 90 Days Past Due	2,819	2,523
Total Past Due	4,329	4,925
Current	398,621	428,660
Total loans	402,950	433,585
Past Due > 90 days and Accruing	843	1,555
Commercial mortgages
Past due loans
Total loans	1,397,142	1,413,544
Commercial mortgages | Business Loans
Past due loans
30-59 Days Past Due	4,176	1,799
60-89 Days Past Due	913	1,727
Greater Than 90 Days Past Due	11,040	12,926
Total Past Due	16,129	16,452
Current	953,084	946,441
Total loans	969,213	962,893
Past Due > 90 days and Accruing	330	1,195
Commercial mortgages | Acquired Loans
Past due loans
30-59 Days Past Due	514	1,726
60-89 Days Past Due	3,424	3,352
Greater Than 90 Days Past Due	13,899	12,864
Total Past Due	17,837	17,942
Current	410,092	432,709
Total loans	427,929	450,651
Past Due > 90 days and Accruing	12,213	11,978
Commercial business loans
Past due loans
Total loans	618,342	600,126
Commercial business loans | Business Loans
Past due loans
30-59 Days Past Due	396	745
60-89 Days Past Due	124	372
Greater Than 90 Days Past Due	2,885	3,427
Total Past Due	3,405	4,544
Current	514,284	485,383
Total loans	517,689	489,927
Past Due > 90 days and Accruing	230	159
Commercial business loans | Acquired Loans
Past due loans
30-59 Days Past Due	320	422
60-89 Days Past Due	187	577
Greater Than 90 Days Past Due	2,286	2,177
Total Past Due	2,793	3,176
Current	97,860	107,023
Total loans	100,653	110,199
Past Due > 90 days and Accruing	1,422	1,764
Consumer loans
Past due loans
Total loans	638,972	650,733
Consumer loans | Business Loans
Past due loans
30-59 Days Past Due	2,024	1,374
60-89 Days Past Due	304	355
Greater Than 90 Days Past Due	2,915	2,104
Total Past Due	5,243	3,833
Current	292,347	278,317
Total loans	297,590	282,150
Past Due > 90 days and Accruing	1,143	493
Consumer loans | Acquired Loans
Past due loans
30-59 Days Past Due	3,581	4,313
60-89 Days Past Due	945	534
Greater Than 90 Days Past Due	662	360
Total Past Due	5,188	5,207
Current	336,194	363,376
Total loans	341,382	368,583
Past Due > 90 days and Accruing	109	223
1-4 family | Residential mortgages
Past due loans
Total loans	1,210,049	1,297,532
1-4 family | Residential mortgages | Business Loans
Past due loans
30-59 Days Past Due	3,633	4,105
60-89 Days Past Due	996	1,291
Greater Than 90 Days Past Due	8,738	8,061
Total Past Due	13,367	13,457
Current	799,783	856,865
Total loans	813,150	870,322
Past Due > 90 days and Accruing	1,896	1,563
1-4 family | Residential mortgages | Acquired Loans
Past due loans
30-59 Days Past Due	862	1,817
60-89 Days Past Due	648	585
Greater Than 90 Days Past Due	2,819	2,523
Total Past Due	4,329	4,925
Current	392,570	422,285
Total loans	396,899	427,210
Past Due > 90 days and Accruing	843	1,555
Construction | Residential mortgages
Past due loans
Total loans	24,567	26,719
Construction | Residential mortgages | Business Loans
Past due loans
30-59 Days Past Due	553
60-89 Days Past Due	111	210
Greater Than 90 Days Past Due	89	48
Total Past Due	753	258
Current	17,763	20,086
Total loans	18,516	20,344
Past Due > 90 days and Accruing	89	48
Construction | Residential mortgages | Acquired Loans
Past due loans
Current	6,051	6,375
Total loans	6,051	6,375
Construction | Commercial mortgages
Past due loans
Total loans	169,060	167,825
Construction | Commercial mortgages | Business Loans
Past due loans
60-89 Days Past Due	225
Greater Than 90 Days Past Due	4,318	4,668
Total Past Due	4,543	4,668
Current	145,056	146,026
Total loans	149,599	150,694
Construction | Commercial mortgages | Acquired Loans
Past due loans
Greater Than 90 Days Past Due	1,080	1,056
Total Past Due	1,080	1,056
Current	18,381	16,075
Total loans	19,461	17,131
Past Due > 90 days and Accruing	1,080	1,056
Single and multi-family | Commercial mortgages
Past due loans
Total loans	143,206	123,820
Single and multi-family | Commercial mortgages | Business Loans
Past due loans
30-59 Days Past Due	214	616
60-89 Days Past Due	140
Greater Than 90 Days Past Due	474	27
Total Past Due	828	643
Current	64,375	42,689
Total loans	65,203	43,332
Past Due > 90 days and Accruing	330
Single and multi-family | Commercial mortgages | Acquired Loans
Past due loans
30-59 Days Past Due	230	194
60-89 Days Past Due	3,424	1,328
Greater Than 90 Days Past Due	1,243	746
Total Past Due	4,897	2,268
Current	73,106	78,220
Total loans	78,003	80,488
Past Due > 90 days and Accruing	1,165	746
Commercial real estate | Commercial mortgages
Past due loans
Total loans	1,084,876	1,121,899
Commercial real estate | Commercial mortgages | Business Loans
Past due loans
30-59 Days Past Due	3,962	1,183
60-89 Days Past Due	548	1,727
Greater Than 90 Days Past Due	6,248	8,231
Total Past Due	10,758	11,141
Current	743,653	757,726
Total loans	754,411	768,867
Past Due > 90 days and Accruing		1,195
Commercial real estate | Commercial mortgages | Acquired Loans
Past due loans
30-59 Days Past Due	284	1,532
60-89 Days Past Due		2,024
Greater Than 90 Days Past Due	11,576	11,062
Total Past Due	11,860	14,618
Current	318,605	338,414
Total loans	330,465	353,032
Past Due > 90 days and Accruing	9,968	10,176
Asset based lending | Commercial business loans
Past due loans
Total loans	278,610	258,095
Asset based lending | Commercial business loans | Business Loans
Past due loans
Current	274,632	255,265
Total loans	274,632	255,265
Asset based lending | Commercial business loans | Acquired Loans
Past due loans
Current	3,978	2,830
Total loans	3,978	2,830
Other commercial business loans | Commercial business loans
Past due loans
Total loans	339,732	342,031
Other commercial business loans | Commercial business loans | Business Loans
Past due loans
30-59 Days Past Due	396	745
60-89 Days Past Due	124	372
Greater Than 90 Days Past Due	2,885	3,427
Total Past Due	3,405	4,544
Current	239,652	230,118
Total loans	243,057	234,662
Past Due > 90 days and Accruing	230	159
Other commercial business loans | Commercial business loans | Acquired Loans
Past due loans
30-59 Days Past Due	320	422
60-89 Days Past Due	187	577
Greater Than 90 Days Past Due	2,286	2,177
Total Past Due	2,793	3,176
Current	93,882	104,193
Total loans	96,675	107,369
Past Due > 90 days and Accruing	1,422	1,764
Home equity | Consumer loans
Past due loans
Total loans	317,163	325,401
Home equity | Consumer loans | Business Loans
Past due loans
30-59 Days Past Due	1,663	828
60-89 Days Past Due	186	300
Greater Than 90 Days Past Due	2,553	1,856
Total Past Due	4,402	2,984
Current	194,699	202,908
Total loans	199,101	205,892
Past Due > 90 days and Accruing	1,001	424
Home equity | Consumer loans | Acquired Loans
Past due loans
30-59 Days Past Due	544	1,689
60-89 Days Past Due	495	169
Greater Than 90 Days Past Due	279	89
Total Past Due	1,318	1,947
Current	116,744	117,562
Total loans	118,062	119,509
Past Due > 90 days and Accruing	64	52
Other | Consumer loans
Past due loans
Total loans	321,809	325,332
Other | Consumer loans | Business Loans
Past due loans
30-59 Days Past Due	361	546
60-89 Days Past Due	118	55
Greater Than 90 Days Past Due	362	248
Total Past Due	841	849
Current	97,648	75,409
Total loans	98,489	76,258
Past Due > 90 days and Accruing	142	69
Other | Consumer loans | Acquired Loans
Past due loans
30-59 Days Past Due	3,037	2,624
60-89 Days Past Due	450	365
Greater Than 90 Days Past Due	383	271
Total Past Due	3,870	3,260
Current	219,450	245,814
Total loans	223,320	249,074
Past Due > 90 days and Accruing	$ 45	$ 171