LOANS (Details 6) (USD $) In Thousands, unless otherwise specified																																																																																					9 Months Ended						9 Months Ended																																					9 Months Ended						9 Months Ended																														9 Months Ended						9 Months Ended																																9 Months Ended																		9 Months Ended					9 Months Ended									9 Months Ended					9 Months Ended
	Sep. 30, 2012 item	Dec. 31, 2011	Sep. 30, 2012 Loans from Business Activities	Dec. 31, 2011 Loans from Business Activities	Sep. 30, 2012 Loans Acquired from Business Combinations item	Dec. 31, 2011 Loans Acquired from Business Combinations	Sep. 30, 2012 Residential mortgages item	Dec. 31, 2011 Residential mortgages	Sep. 30, 2012 Residential mortgages Loans from Business Activities	Dec. 31, 2011 Residential mortgages Loans from Business Activities	Sep. 30, 2012 Residential mortgages Loans Acquired from Business Combinations item	Dec. 31, 2011 Residential mortgages Loans Acquired from Business Combinations	Sep. 30, 2012 Commercial mortgages	Dec. 31, 2011 Commercial mortgages	Sep. 30, 2012 Commercial mortgages Loans from Business Activities	Dec. 31, 2011 Commercial mortgages Loans from Business Activities	Sep. 30, 2012 Commercial mortgages Loans Acquired from Business Combinations	Dec. 31, 2011 Commercial mortgages Loans Acquired from Business Combinations	Sep. 30, 2012 Commercial business loans	Dec. 31, 2011 Commercial business loans	Sep. 30, 2012 Commercial business loans Loans from Business Activities	Dec. 31, 2011 Commercial business loans Loans from Business Activities	Sep. 30, 2012 Commercial business loans Loans Acquired from Business Combinations	Dec. 31, 2011 Commercial business loans Loans Acquired from Business Combinations	Sep. 30, 2012 Consumer loans	Dec. 31, 2011 Consumer loans	Sep. 30, 2012 Consumer loans Loans from Business Activities	Dec. 31, 2011 Consumer loans Loans from Business Activities	Sep. 30, 2012 Consumer loans Loans Acquired from Business Combinations	Dec. 31, 2011 Consumer loans Loans Acquired from Business Combinations	Sep. 30, 2012 1-4 family Residential mortgages	Dec. 31, 2011 1-4 family Residential mortgages	Sep. 30, 2012 1-4 family Residential mortgages Loans from Business Activities	Dec. 31, 2011 1-4 family Residential mortgages Loans from Business Activities	Sep. 30, 2012 1-4 family Residential mortgages Loans Acquired from Business Combinations	Dec. 31, 2011 1-4 family Residential mortgages Loans Acquired from Business Combinations	Sep. 30, 2012 Construction Residential mortgages	Dec. 31, 2011 Construction Residential mortgages	Sep. 30, 2012 Construction Residential mortgages Loans from Business Activities	Dec. 31, 2011 Construction Residential mortgages Loans from Business Activities	Sep. 30, 2012 Construction Residential mortgages Loans Acquired from Business Combinations	Dec. 31, 2011 Construction Residential mortgages Loans Acquired from Business Combinations	Sep. 30, 2012 Construction Commercial mortgages	Dec. 31, 2011 Construction Commercial mortgages	Sep. 30, 2012 Construction Commercial mortgages Loans from Business Activities	Dec. 31, 2011 Construction Commercial mortgages Loans from Business Activities	Sep. 30, 2012 Construction Commercial mortgages Loans Acquired from Business Combinations	Dec. 31, 2011 Construction Commercial mortgages Loans Acquired from Business Combinations	Sep. 30, 2012 Single and multi-family Commercial mortgages	Dec. 31, 2011 Single and multi-family Commercial mortgages	Sep. 30, 2012 Single and multi-family Commercial mortgages Loans from Business Activities	Dec. 31, 2011 Single and multi-family Commercial mortgages Loans from Business Activities	Sep. 30, 2012 Single and multi-family Commercial mortgages Loans Acquired from Business Combinations	Dec. 31, 2011 Single and multi-family Commercial mortgages Loans Acquired from Business Combinations	Sep. 30, 2012 Real estate Commercial mortgages	Dec. 31, 2011 Real estate Commercial mortgages	Sep. 30, 2012 Real estate Commercial mortgages Loans from Business Activities	Dec. 31, 2011 Real estate Commercial mortgages Loans from Business Activities	Sep. 30, 2012 Real estate Commercial mortgages Loans Acquired from Business Combinations	Dec. 31, 2011 Real estate Commercial mortgages Loans Acquired from Business Combinations	Sep. 30, 2012 Asset based lending Commercial business loans	Dec. 31, 2011 Asset based lending Commercial business loans	Sep. 30, 2012 Asset based lending Commercial business loans Loans from Business Activities	Dec. 31, 2011 Asset based lending Commercial business loans Loans from Business Activities	Sep. 30, 2012 Asset based lending Commercial business loans Loans Acquired from Business Combinations	Dec. 31, 2011 Asset based lending Commercial business loans Loans Acquired from Business Combinations	Sep. 30, 2012 Other Commercial business loans	Dec. 31, 2011 Other Commercial business loans	Sep. 30, 2012 Other Commercial business loans Loans from Business Activities	Dec. 31, 2011 Other Commercial business loans Loans from Business Activities	Sep. 30, 2012 Other Commercial business loans Loans Acquired from Business Combinations	Dec. 31, 2011 Other Commercial business loans Loans Acquired from Business Combinations	Sep. 30, 2012 Home equity Consumer loans	Dec. 31, 2011 Home equity Consumer loans	Sep. 30, 2012 Home equity Consumer loans Loans from Business Activities	Dec. 31, 2011 Home equity Consumer loans Loans from Business Activities	Sep. 30, 2012 Home equity Consumer loans Loans Acquired from Business Combinations	Dec. 31, 2011 Home equity Consumer loans Loans Acquired from Business Combinations	Sep. 30, 2012 Other Consumer loans item	Dec. 31, 2011 Other Consumer loans	Sep. 30, 2012 Other Consumer loans Loans from Business Activities	Dec. 31, 2011 Other Consumer loans Loans from Business Activities	Sep. 30, 2012 Other Consumer loans Loans Acquired from Business Combinations item	Dec. 31, 2011 Other Consumer loans Loans Acquired from Business Combinations	Sep. 30, 2012 Minimal Risk	Sep. 30, 2012 Pass Residential mortgages Maximum	Sep. 30, 2012 Pass Residential mortgages Loans from Business Activities	Dec. 31, 2011 Pass Residential mortgages Loans from Business Activities	Sep. 30, 2012 Pass Residential mortgages Loans Acquired from Business Combinations	Dec. 31, 2011 Pass Residential mortgages Loans Acquired from Business Combinations	Sep. 30, 2012 Pass Residential mortgages Loans Acquired from Business Combinations Maximum	Sep. 30, 2012 Pass Commercial mortgages Loans from Business Activities	Dec. 31, 2011 Pass Commercial mortgages Loans from Business Activities	Sep. 30, 2012 Pass Commercial mortgages Loans Acquired from Business Combinations	Dec. 31, 2011 Pass Commercial mortgages Loans Acquired from Business Combinations	Sep. 30, 2012 Pass Commercial business loans Loans from Business Activities	Dec. 31, 2011 Pass Commercial business loans Loans from Business Activities	Sep. 30, 2012 Pass Commercial business loans Loans Acquired from Business Combinations	Dec. 31, 2011 Pass Commercial business loans Loans Acquired from Business Combinations	Sep. 30, 2012 Pass 1-4 family Residential mortgages Loans from Business Activities	Dec. 31, 2011 Pass 1-4 family Residential mortgages Loans from Business Activities	Sep. 30, 2012 Pass 1-4 family Residential mortgages Loans Acquired from Business Combinations	Dec. 31, 2011 Pass 1-4 family Residential mortgages Loans Acquired from Business Combinations	Sep. 30, 2012 Pass Construction Residential mortgages Loans from Business Activities	Dec. 31, 2011 Pass Construction Residential mortgages Loans from Business Activities	Sep. 30, 2012 Pass Construction Residential mortgages Loans Acquired from Business Combinations	Dec. 31, 2011 Pass Construction Residential mortgages Loans Acquired from Business Combinations	Sep. 30, 2012 Pass Construction Commercial mortgages Loans from Business Activities	Dec. 31, 2011 Pass Construction Commercial mortgages Loans from Business Activities	Sep. 30, 2012 Pass Construction Commercial mortgages Loans Acquired from Business Combinations	Dec. 31, 2011 Pass Construction Commercial mortgages Loans Acquired from Business Combinations	Sep. 30, 2012 Pass Single and multi-family Commercial mortgages Loans from Business Activities	Dec. 31, 2011 Pass Single and multi-family Commercial mortgages Loans from Business Activities	Sep. 30, 2012 Pass Single and multi-family Commercial mortgages Loans Acquired from Business Combinations	Dec. 31, 2011 Pass Single and multi-family Commercial mortgages Loans Acquired from Business Combinations	Sep. 30, 2012 Pass Real estate Commercial mortgages Loans from Business Activities	Dec. 31, 2011 Pass Real estate Commercial mortgages Loans from Business Activities	Sep. 30, 2012 Pass Real estate Commercial mortgages Loans Acquired from Business Combinations	Dec. 31, 2011 Pass Real estate Commercial mortgages Loans Acquired from Business Combinations	Sep. 30, 2012 Pass Asset based lending Commercial business loans Loans from Business Activities	Dec. 31, 2011 Pass Asset based lending Commercial business loans Loans from Business Activities	Sep. 30, 2012 Pass Asset based lending Commercial business loans Loans Acquired from Business Combinations	Dec. 31, 2011 Pass Asset based lending Commercial business loans Loans Acquired from Business Combinations	Sep. 30, 2012 Pass Other Commercial business loans Loans from Business Activities	Dec. 31, 2011 Pass Other Commercial business loans Loans from Business Activities	Sep. 30, 2012 Pass Other Commercial business loans Loans Acquired from Business Combinations	Dec. 31, 2011 Pass Other Commercial business loans Loans Acquired from Business Combinations	Sep. 30, 2012 Special mention Residential mortgages Minimum	Sep. 30, 2012 Special mention Residential mortgages Maximum	Sep. 30, 2012 Special mention Residential mortgages Loans from Business Activities	Dec. 31, 2011 Special mention Residential mortgages Loans from Business Activities	Sep. 30, 2012 Special mention Residential mortgages Loans Acquired from Business Combinations	Dec. 31, 2011 Special mention Residential mortgages Loans Acquired from Business Combinations	Sep. 30, 2012 Special mention Residential mortgages Loans Acquired from Business Combinations Minimum	Sep. 30, 2012 Special mention Residential mortgages Loans Acquired from Business Combinations Maximum	Sep. 30, 2012 Special mention Commercial mortgages Loans from Business Activities	Dec. 31, 2011 Special mention Commercial mortgages Loans from Business Activities	Sep. 30, 2012 Special mention Commercial mortgages Loans Acquired from Business Combinations	Dec. 31, 2011 Special mention Commercial mortgages Loans Acquired from Business Combinations	Sep. 30, 2012 Special mention Commercial business loans Loans from Business Activities	Dec. 31, 2011 Special mention Commercial business loans Loans from Business Activities	Sep. 30, 2012 Special mention Commercial business loans Loans Acquired from Business Combinations	Dec. 31, 2011 Special mention Commercial business loans Loans Acquired from Business Combinations	Sep. 30, 2012 Special mention 1-4 family Residential mortgages Loans from Business Activities	Dec. 31, 2011 Special mention 1-4 family Residential mortgages Loans from Business Activities	Sep. 30, 2012 Special mention 1-4 family Residential mortgages Loans Acquired from Business Combinations	Dec. 31, 2011 Special mention 1-4 family Residential mortgages Loans Acquired from Business Combinations	Sep. 30, 2012 Special mention Construction Residential mortgages Loans from Business Activities	Sep. 30, 2012 Special mention Construction Commercial mortgages Loans from Business Activities	Dec. 31, 2011 Special mention Construction Commercial mortgages Loans from Business Activities	Dec. 31, 2011 Special mention Construction Commercial mortgages Loans Acquired from Business Combinations	Sep. 30, 2012 Special mention Single and multi-family Commercial mortgages Loans from Business Activities	Dec. 31, 2011 Special mention Single and multi-family Commercial mortgages Loans from Business Activities	Sep. 30, 2012 Special mention Single and multi-family Commercial mortgages Loans Acquired from Business Combinations	Dec. 31, 2011 Special mention Single and multi-family Commercial mortgages Loans Acquired from Business Combinations	Sep. 30, 2012 Special mention Real estate Commercial mortgages Loans from Business Activities	Dec. 31, 2011 Special mention Real estate Commercial mortgages Loans from Business Activities	Sep. 30, 2012 Special mention Real estate Commercial mortgages Loans Acquired from Business Combinations	Dec. 31, 2011 Special mention Real estate Commercial mortgages Loans Acquired from Business Combinations	Sep. 30, 2012 Special mention Other Commercial business loans Loans from Business Activities	Dec. 31, 2011 Special mention Other Commercial business loans Loans from Business Activities	Sep. 30, 2012 Special mention Other Commercial business loans Loans Acquired from Business Combinations	Dec. 31, 2011 Special mention Other Commercial business loans Loans Acquired from Business Combinations	Sep. 30, 2012 Substandard Minimum	Sep. 30, 2012 Substandard Residential mortgages Minimum	Sep. 30, 2012 Substandard Residential mortgages Loans from Business Activities	Dec. 31, 2011 Substandard Residential mortgages Loans from Business Activities	Sep. 30, 2012 Substandard Residential mortgages Loans Acquired from Business Combinations	Dec. 31, 2011 Substandard Residential mortgages Loans Acquired from Business Combinations	Sep. 30, 2012 Substandard Residential mortgages Loans Acquired from Business Combinations Minimum	Sep. 30, 2012 Substandard Commercial mortgages Loans from Business Activities	Dec. 31, 2011 Substandard Commercial mortgages Loans from Business Activities	Sep. 30, 2012 Substandard Commercial mortgages Loans Acquired from Business Combinations	Dec. 31, 2011 Substandard Commercial mortgages Loans Acquired from Business Combinations	Sep. 30, 2012 Substandard Commercial business loans Loans from Business Activities	Dec. 31, 2011 Substandard Commercial business loans Loans from Business Activities	Sep. 30, 2012 Substandard Commercial business loans Loans Acquired from Business Combinations	Dec. 31, 2011 Substandard Commercial business loans Loans Acquired from Business Combinations	Sep. 30, 2012 Substandard 1-4 family Residential mortgages Loans from Business Activities	Dec. 31, 2011 Substandard 1-4 family Residential mortgages Loans from Business Activities	Sep. 30, 2012 Substandard 1-4 family Residential mortgages Loans Acquired from Business Combinations	Dec. 31, 2011 Substandard 1-4 family Residential mortgages Loans Acquired from Business Combinations	Dec. 31, 2011 Substandard Construction Residential mortgages Loans Acquired from Business Combinations	Sep. 30, 2012 Substandard Construction Commercial mortgages Loans from Business Activities	Dec. 31, 2011 Substandard Construction Commercial mortgages Loans from Business Activities	Sep. 30, 2012 Substandard Construction Commercial mortgages Loans Acquired from Business Combinations	Dec. 31, 2011 Substandard Construction Commercial mortgages Loans Acquired from Business Combinations	Sep. 30, 2012 Substandard Single and multi-family Commercial mortgages Loans from Business Activities	Dec. 31, 2011 Substandard Single and multi-family Commercial mortgages Loans from Business Activities	Sep. 30, 2012 Substandard Single and multi-family Commercial mortgages Loans Acquired from Business Combinations	Dec. 31, 2011 Substandard Single and multi-family Commercial mortgages Loans Acquired from Business Combinations	Sep. 30, 2012 Substandard Real estate Commercial mortgages Loans from Business Activities	Dec. 31, 2011 Substandard Real estate Commercial mortgages Loans from Business Activities	Sep. 30, 2012 Substandard Real estate Commercial mortgages Loans Acquired from Business Combinations	Dec. 31, 2011 Substandard Real estate Commercial mortgages Loans Acquired from Business Combinations	Sep. 30, 2012 Substandard Asset based lending Commercial business loans Loans from Business Activities	Dec. 31, 2011 Substandard Asset based lending Commercial business loans Loans from Business Activities	Sep. 30, 2012 Substandard Other Commercial business loans Loans from Business Activities	Dec. 31, 2011 Substandard Other Commercial business loans Loans from Business Activities	Sep. 30, 2012 Substandard Other Commercial business loans Loans Acquired from Business Combinations	Dec. 31, 2011 Substandard Other Commercial business loans Loans Acquired from Business Combinations	Sep. 30, 2012 Doubtful Maximum	Sep. 30, 2012 Doubtful Commercial mortgages Loans from Business Activities	Dec. 31, 2011 Doubtful Commercial mortgages Loans from Business Activities	Sep. 30, 2012 Doubtful Commercial business loans Loans from Business Activities	Dec. 31, 2011 Doubtful Commercial business loans Loans from Business Activities	Dec. 31, 2011 Doubtful Construction Commercial mortgages Loans from Business Activities	Sep. 30, 2012 Doubtful Real estate Commercial mortgages Loans from Business Activities	Dec. 31, 2011 Doubtful Real estate Commercial mortgages Loans from Business Activities	Sep. 30, 2012 Doubtful Other Commercial business loans Loans from Business Activities	Dec. 31, 2011 Doubtful Other Commercial business loans Loans from Business Activities	Sep. 30, 2012 Performing Consumer loans Loans from Business Activities	Dec. 31, 2011 Performing Consumer loans Loans from Business Activities	Sep. 30, 2012 Performing Consumer loans Loans Acquired from Business Combinations	Dec. 31, 2011 Performing Consumer loans Loans Acquired from Business Combinations	Sep. 30, 2012 Performing Home equity Consumer loans Loans from Business Activities	Dec. 31, 2011 Performing Home equity Consumer loans Loans from Business Activities	Sep. 30, 2012 Performing Home equity Consumer loans Loans Acquired from Business Combinations	Dec. 31, 2011 Performing Home equity Consumer loans Loans Acquired from Business Combinations	Sep. 30, 2012 Performing Other Consumer loans Maximum	Sep. 30, 2012 Performing Other Consumer loans Loans from Business Activities	Dec. 31, 2011 Performing Other Consumer loans Loans from Business Activities	Sep. 30, 2012 Performing Other Consumer loans Loans Acquired from Business Combinations	Dec. 31, 2011 Performing Other Consumer loans Loans Acquired from Business Combinations	Sep. 30, 2012 Performing Other Consumer loans Loans Acquired from Business Combinations Maximum	Sep. 30, 2012 Nonperforming Consumer loans Loans from Business Activities	Dec. 31, 2011 Nonperforming Consumer loans Loans from Business Activities	Sep. 30, 2012 Nonperforming Consumer loans Loans Acquired from Business Combinations	Dec. 31, 2011 Nonperforming Consumer loans Loans Acquired from Business Combinations	Sep. 30, 2012 Nonperforming Home equity Consumer loans Loans from Business Activities	Dec. 31, 2011 Nonperforming Home equity Consumer loans Loans from Business Activities	Sep. 30, 2012 Nonperforming Home equity Consumer loans Loans Acquired from Business Combinations	Dec. 31, 2011 Nonperforming Home equity Consumer loans Loans Acquired from Business Combinations	Sep. 30, 2012 Nonperforming Other Consumer loans Minimum	Sep. 30, 2012 Nonperforming Other Consumer loans Loans from Business Activities	Dec. 31, 2011 Nonperforming Other Consumer loans Loans from Business Activities	Sep. 30, 2012 Nonperforming Other Consumer loans Loans Acquired from Business Combinations	Dec. 31, 2011 Nonperforming Other Consumer loans Loans Acquired from Business Combinations	Sep. 30, 2012 Nonperforming Other Consumer loans Loans Acquired from Business Combinations Minimum
Credit quality information
Number of grades in internal loan rating system	11				11		3				3																																																																				2				2
Stable period of relationship which provides an adequate return on investment																																																																																					3 years
Delinquency period of loans based on which risk rating is assigned to loans																																																																																																																																60 days	89 days					60 days	89 days																													90 days	90 days					90 days																																																																120 days					120 days
Percentage of balance owed expected to be collected																																																																																																																																																																																																										50.00%
Current period of loans based on which risk rating is assigned to loans																																																																																						59 days					59 days																																																																																																																																	119 days					119 days
Loans	$ 3,418,392	$ 2,956,570	$ 2,632,083	$ 2,262,251	$ 786,309	$ 694,319	$ 1,226,022	$ 1,020,435	$ 929,284	$ 681,658	$ 296,738	$ 338,777	$ 1,255,172	$ 1,156,241	$ 960,456	$ 953,438	$ 294,716	$ 202,803	$ 568,781	$ 410,292	$ 475,512	$ 361,766	$ 93,269	$ 48,526	$ 368,417	$ 369,602	$ 266,831	$ 265,389	$ 101,586	$ 104,213	$ 1,192,452	$ 978,874	$ 902,661	$ 649,467	$ 289,791	$ 329,407	$ 33,570	$ 41,561	$ 26,623	$ 32,191	$ 6,947	$ 9,370	$ 155,872	$ 124,218	$ 145,494	$ 117,492	$ 10,378	$ 6,726	$ 90,978	$ 105,799	$ 77,470	$ 89,401	$ 13,508	$ 16,398	$ 1,008,322	$ 926,224	$ 737,492	$ 746,545	$ 270,830	$ 179,679	$ 245,691	$ 153,271	$ 243,126	$ 151,065	$ 2,565	$ 2,206	$ 323,090	$ 257,021	$ 232,386	$ 210,701	$ 90,704	$ 46,320	$ 302,057	$ 298,196	$ 228,497	$ 226,369	$ 73,560	$ 71,827	$ 66,360	$ 71,406	$ 38,334	$ 39,020	$ 28,026	$ 32,386			$ 919,535	$ 669,301	$ 294,151	$ 336,920		$ 869,779	$ 851,419	$ 253,835	$ 179,568	$ 460,174	$ 349,987	$ 79,045	$ 41,784	$ 893,426	$ 637,110	$ 287,204	$ 327,715	$ 26,109	$ 32,191	$ 6,947	$ 9,205	$ 130,658	$ 91,452	$ 8,703	$ 3,548	$ 74,438	$ 85,153	$ 9,691	$ 14,802	$ 664,683	$ 674,814	$ 235,441	$ 161,218	$ 242,089	$ 149,741	$ 2,565	$ 2,206	$ 218,085	$ 200,246	$ 76,480	$ 39,578			$ 985	$ 877	$ 406	$ 242			$ 13,433	$ 22,833	$ 14,798	$ 10,503	$ 4,921	$ 607	$ 8,394	$ 3,810	$ 471	$ 877	$ 406	$ 242	$ 514	$ 49	$ 5,939	$ 2,160	$ 422	$ 435	$ 2,553	$ 272	$ 12,962	$ 16,459	$ 12,245	$ 8,071	$ 4,921	$ 607	$ 8,394	$ 3,810			$ 8,764	$ 11,480	$ 2,181	$ 1,615		$ 77,139	$ 76,231	$ 26,083	$ 12,732	$ 10,324	$ 11,077	$ 5,830	$ 2,932	$ 8,764	$ 11,480	$ 2,181	$ 1,450	$ 165	$ 14,787	$ 17,262	$ 1,675	$ 1,018	$ 2,610	$ 3,813	$ 1,264	$ 1,324	$ 59,742	$ 55,156	$ 23,144	$ 10,390	$ 1,037	$ 1,324	$ 9,287	$ 9,753	$ 5,830	$ 2,932		$ 105	$ 2,955	$ 93	$ 95	$ 2,839	$ 105	$ 116	$ 93	$ 95	$ 265,187	$ 263,649	$ 101,408	$ 104,000	$ 227,028	$ 224,677	$ 73,523	$ 71,752		$ 38,159	$ 38,972	$ 27,885	$ 32,248		$ 1,644	$ 1,740	$ 178	$ 213	$ 1,469	$ 1,692	$ 37	$ 75		$ 175	$ 48	$ 141	$ 138