INVESTMENTS IN DEBT AND EQUITY SECURITIES (Details 1) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Held-To-Maturity Securities, Debt Maturities, Within One Year, Net Carrying Amount	$ 1,371	$ 1,372
Held-To-Maturity Securities, Debt Maturities, After One Through Five Years, Net Carrying Amount	8,171	8,314
Held-To-Maturity Securities, Debt Maturities, After Five Through Ten Years, Net Carrying Amount	213,734	982
Held-To-Maturity Securities, Debt Maturities, After Ten Years, Net Carrying Amount	518,451	2,149
Held-To-Maturity Securities, Amortized Cost Before Other Than Temporary Impairment	741,727	12,817
Held-To-Maturity Securities, Unrecognized Holding Gain	571	607
Held-To-Maturity Securities, Unrecognized Holding Loss	(325)	0
Held-To-Maturity Securities, Fair Value	741,973	13,424
Held To Maturity Securities Weighted Average Yield	2.22%	4.76%
Held To Maturity Securities Weighted Average Yield With In One Year	2.54%	2.55%
Held To Maturity Securities Weighted Average Yield After One Through Five Years	4.80%	4.67%
Held To Maturity Securities Weighted Average Yield After Five Through Ten Years	2.31%	4.60%
Held To Maturity Securities Weighted Average Yield After Ten Years	2.15%	6.61%
United States Government Sponsored Enterprises Debt Securities [Member]
Held-To-Maturity Securities, Debt Maturities, Within One Year, Net Carrying Amount	0
Held-To-Maturity Securities, Debt Maturities, After One Through Five Years, Net Carrying Amount	0
Held-To-Maturity Securities, Debt Maturities, After Five Through Ten Years, Net Carrying Amount	63,276
Held-To-Maturity Securities, Debt Maturities, After Ten Years, Net Carrying Amount	0
Held-To-Maturity Securities, Amortized Cost Before Other Than Temporary Impairment	63,276
Held-To-Maturity Securities, Unrecognized Holding Gain	0
Held-To-Maturity Securities, Unrecognized Holding Loss	0
Held-To-Maturity Securities, Fair Value	63,276
Held To Maturity Securities Weighted Average Yield	1.78%
Residential Mortgage Backed Securitiess Debt Securities [Member]
Held-To-Maturity Securities, Debt Maturities, Within One Year, Net Carrying Amount	0	0
Held-To-Maturity Securities, Debt Maturities, After One Through Five Years, Net Carrying Amount	0	0
Held-To-Maturity Securities, Debt Maturities, After Five Through Ten Years, Net Carrying Amount	150,205	728
Held-To-Maturity Securities, Debt Maturities, After Ten Years, Net Carrying Amount	516,917	615
Held-To-Maturity Securities, Amortized Cost Before Other Than Temporary Impairment	667,122	1,343
Held-To-Maturity Securities, Unrecognized Holding Gain	116	116
Held-To-Maturity Securities, Unrecognized Holding Loss	0	0
Held-To-Maturity Securities, Fair Value	667,238	1,459
Held To Maturity Securities Weighted Average Yield	2.22%	5.06%
Commercial Mortgage Backed Securities [Member]
Held-To-Maturity Securities, Debt Maturities, Within One Year, Net Carrying Amount	0	0
Held-To-Maturity Securities, Debt Maturities, After One Through Five Years, Net Carrying Amount	6,245	6,310
Held-To-Maturity Securities, Debt Maturities, After Five Through Ten Years, Net Carrying Amount	0	0
Held-To-Maturity Securities, Debt Maturities, After Ten Years, Net Carrying Amount	0	0
Held-To-Maturity Securities, Amortized Cost Before Other Than Temporary Impairment	6,245	6,310
Held-To-Maturity Securities, Unrecognized Holding Gain	382	447
Held-To-Maturity Securities, Unrecognized Holding Loss	0	0
Held-To-Maturity Securities, Fair Value	6,627	6,757
Held To Maturity Securities Weighted Average Yield	5.34%	5.16%
Us States and Political Subdivisions [Member]
Held-To-Maturity Securities, Debt Maturities, Within One Year, Net Carrying Amount	1,371	1,372
Held-To-Maturity Securities, Debt Maturities, After One Through Five Years, Net Carrying Amount	1,926	2,004
Held-To-Maturity Securities, Debt Maturities, After Five Through Ten Years, Net Carrying Amount	253	254
Held-To-Maturity Securities, Debt Maturities, After Ten Years, Net Carrying Amount	1,534	1,534
Held-To-Maturity Securities, Amortized Cost Before Other Than Temporary Impairment	5,084	5,164
Held-To-Maturity Securities, Unrecognized Holding Gain	73	44
Held-To-Maturity Securities, Unrecognized Holding Loss	(325)	0
Held-To-Maturity Securities, Fair Value	4,832	5,208
Held To Maturity Securities Weighted Average Yield	4.18%	4.20%
Debt Securities [Member]
Held-To-Maturity Securities, Debt Maturities, Next Twelve Months, Fair Value	1,379	1,387
Held-To-Maturity Securities, Debt Maturities, Year Two Through Five, Fair Value	8,602	8,768
Held-To-Maturity Securities, Debt Maturities, Year Six Through Ten, Fair Value	213,799	1,056
Held-To-Maturity Securities, Debt Maturities, After Ten Years, Fair Value	$ 518,193	$ 2,213