ALLOWANCE FOR LOAN LOSSES AND CREDIT QUALITY (Aging Of The Recorded Investment In Past Due Loans) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Financing Receivable, Recorded Investment, Aging [Abstract]
Loans Not Past Due	$ 2,656,203	$ 2,509,183
30-89 Days Past Due	3,049	1,971
Greater than 90 Days Past Due	4	46
Nonaccrual	14,071	23,898
Total Past Due	17,124	25,915
Total	2,673,327	2,535,098
Other Commerical Loans [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Loans Not Past Due	72,095	70,766
30-89 Days Past Due	0	0
Greater than 90 Days Past Due	0	0
Nonaccrual	0	0
Total Past Due	0	0
Total	72,095	70,766
Commercial and Industrial Loans [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	1,036,180	901,847
Commercial and Industrial Loans [Member] | Working Capital Lines Of Credit Loans [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Loans Not Past Due	508,829	456,136
30-89 Days Past Due	631	0
Greater than 90 Days Past Due	0	0
Nonaccrual	470	1,819
Total Past Due	1,101	1,819
Total	509,930	457,955
Commercial and Industrial Loans [Member] | Non-working Capital Loans [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Loans Not Past Due	521,756	440,050
30-89 Days Past Due	374	46
Greater than 90 Days Past Due	0	0
Nonaccrual	4,120	3,796
Total Past Due	4,494	3,842
Total	526,250	443,892
Commercial Real Estate and Multi-Family Residential Loans [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	1,016,728	984,877
Commercial Real Estate and Multi-Family Residential Loans [Member] | Construction and Land Development Loans [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Loans Not Past Due	165,660	156,594
30-89 Days Past Due	0	0
Greater than 90 Days Past Due	0	0
Nonaccrual	535	544
Total Past Due	535	544
Total	166,195	157,138
Commercial Real Estate and Multi-Family Residential Loans [Member] | Owner Occupied Loans [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Loans Not Past Due	383,356	366,955
30-89 Days Past Due	0	0
Greater than 90 Days Past Due	0	0
Nonaccrual	2,070	3,156
Total Past Due	2,070	3,156
Total	385,426	370,111
Commercial Real Estate and Multi-Family Residential Loans [Member] | Nonowner Occupied Loans [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Loans Not Past Due	401,446	382,478
30-89 Days Past Due	64	0
Greater than 90 Days Past Due	0	0
Nonaccrual	4,718	11,758
Total Past Due	4,782	11,758
Total	406,228	394,236
Commercial Real Estate and Multi-Family Residential Loans [Member] | Multifamily Loans [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Loans Not Past Due	58,879	63,392
30-89 Days Past Due	0	0
Greater than 90 Days Past Due	0	0
Nonaccrual	0	0
Total Past Due	0	0
Total	58,879	63,392
Agri-business and Agricultural Loans [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	212,774	254,125
Agri-business and Agricultural Loans [Member] | Loans Secured By Farmland [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Loans Not Past Due	122,035	132,347
30-89 Days Past Due	0	0
Greater than 90 Days Past Due	0	0
Nonaccrual	488	1,113
Total Past Due	488	1,113
Total	122,523	133,460
Agri-business and Agricultural Loans [Member] | Loans For Agricultural Production [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Loans Not Past Due	90,251	120,665
30-89 Days Past Due	0	0
Greater than 90 Days Past Due	0	0
Nonaccrual	0	0
Total Past Due	0	0
Total	90,251	120,665
Consumer 1-4 Family Mortgage Loans [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	291,703	277,406
Consumer 1-4 Family Mortgage Loans [Member] | Closed End First Mortgage Loans [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Loans Not Past Due	135,906	122,370
30-89 Days Past Due	1,347	1,645
Greater than 90 Days Past Due	0	0
Nonaccrual	1,253	1,165
Total Past Due	2,600	2,810
Total	138,506	125,180
Consumer 1-4 Family Mortgage Loans [Member] | Open End and Junior Lien Loans [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Loans Not Past Due	145,506	147,123
30-89 Days Past Due	372	135
Greater than 90 Days Past Due	4	46
Nonaccrual	214	291
Total Past Due	590	472
Total	146,096	147,595
Consumer 1-4 Family Mortgage Loans [Member] | Residential Construction Loans [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Loans Not Past Due	6,962	4,481
30-89 Days Past Due	0	0
Greater than 90 Days Past Due	0	0
Nonaccrual	139	150
Total Past Due	139	150
Total	7,101	4,631
Other consumer loans [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Loans Not Past Due	43,522	45,826
30-89 Days Past Due	261	145
Greater than 90 Days Past Due	0	0
Nonaccrual	64	106
Total Past Due	325	251
Total	$ 43,847	$ 46,077