BUSINESS SEGMENTS (Details) (USD $)	3 Months Ended			6 Months Ended
	Jun. 30, 2013	Mar. 31, 2013	Jun. 30, 2012	Jun. 30, 2013 item	Jun. 30, 2012	Dec. 31, 2012	Mar. 31, 2012	Dec. 31, 2011
Business segments
Number of reportable segments				3
Loans and leases, net of unearned income	$ 4,419,686,000		$ 3,484,703,000	$ 4,419,686,000	$ 3,484,703,000	$ 3,590,297,000
Total allowance for loans and lease losses	(90,643,000)	(94,519,000)	(103,524,000)	(90,643,000)	(103,524,000)	(91,968,000)	(110,577,000)	(116,588,000)
Total loans and leases, net	4,329,043,000		3,381,179,000	4,329,043,000	3,381,179,000	3,498,329,000
Goodwill	209,190,000		62,008,000	209,190,000	62,008,000	79,866,000
Core deposit and customer relationship intangibles, net	20,190,000		16,943,000	20,190,000	16,943,000	14,723,000
Total assets	6,709,102,000		5,321,622,000	6,709,102,000	5,321,622,000	5,463,658,000
Total deposits	5,523,000,000		4,591,329,000	5,523,000,000	4,591,329,000	4,709,121,000
Interest income	71,631,000	69,269,000	72,890,000	140,900,000	147,290,000
Other interest expense	(3,158,000)	(3,576,000)	(4,477,000)	(6,734,000)	(11,197,000)
Net interest income	68,473,000	65,693,000	68,413,000	134,166,000	136,093,000
Total (provision) negative provision for credit losses	1,842,000	(3,137,000)	271,000	(1,295,000)	6,345,000
Noninterest income	203,000	2,840,000	4,871,000	3,043,000	8,133,000
Intangible asset amortization	(1,284,000)	(1,176,000)	(1,737,000)	(2,460,000)	(3,472,000)
Debt termination expense					(22,598,000)
Other noninterest expense	(62,932,000)	(43,007,000)	(45,848,000)	(105,939,000)	(90,410,000)
Total noninterest expense	(64,216,000)	(44,183,000)	(47,585,000)	(108,399,000)	(116,480,000)
Earnings from continuing operations before income taxes	6,302,000	21,213,000	25,970,000	27,515,000	34,091,000
Income taxes (expense) benefit	(1,906,000)	(7,719,000)	(10,413,000)	(9,625,000)	(13,270,000)
Net earnings from continuing operations	4,396,000	13,494,000	15,557,000	17,890,000	20,821,000
Loss from discontinued operations before income taxes	(81,000)			(81,000)
Income tax benefit	34,000			34,000
Net loss from discontinued operations	(47,000)			(47,000)
Net earnings	4,349,000	13,494,000	15,557,000	17,843,000	20,821,000
Banking
Business segments
Loans and leases, net of unearned income	3,947,322,000		3,102,215,000	3,947,322,000	3,102,215,000
Total allowance for loans and lease losses	(84,917,000)		(100,759,000)	(84,917,000)	(100,759,000)
Total loans and leases, net	3,862,405,000		3,001,456,000	3,862,405,000	3,001,456,000
Goodwill	183,512,000		39,141,000	183,512,000	39,141,000
Core deposit and customer relationship intangibles, net	17,958,000		14,104,000	17,958,000	14,104,000
Total assets	6,189,202,000		4,876,271,000	6,189,202,000	4,876,271,000
Total deposits	5,557,871,000		4,604,387,000	5,557,871,000	4,604,387,000
Interest income	59,321,000	56,907,000	62,045,000	116,228,000	127,528,000
Intersegment interest income (expense)	460,000	471,000	630,000	931,000	1,153,000
Other interest expense	(2,080,000)	(2,650,000)	(3,404,000)	(4,730,000)	(8,715,000)
Net interest income	57,701,000	54,728,000	59,271,000	112,429,000	119,966,000
Total (provision) negative provision for credit losses	2,607,000	(2,336,000)	371,000	271,000	6,445,000
Noninterest income	(415,000)	2,273,000	4,133,000	1,858,000	6,191,000
Intangible asset amortization	(1,127,000)	(993,000)	(1,603,000)	(2,120,000)	(3,311,000)
Debt termination expense					(24,195,000)
Other noninterest expense	(55,554,000)	(35,538,000)	(38,088,000)	(91,092,000)	(76,440,000)
Total noninterest expense	(56,681,000)	(36,531,000)	(39,691,000)	(93,212,000)	(103,946,000)
Earnings from continuing operations before income taxes	3,212,000	18,134,000	24,084,000	21,346,000	28,656,000
Income taxes (expense) benefit	(612,000)	(6,430,000)	(9,563,000)	(7,042,000)	(10,921,000)
Net earnings from continuing operations	2,600,000			14,304,000
Loss from discontinued operations before income taxes	(81,000)			(81,000)
Income tax benefit	34,000			34,000
Net loss from discontinued operations	(47,000)			(47,000)
Net earnings	2,553,000	11,704,000	14,521,000	14,257,000	17,735,000
Asset Financing
Business segments
Loans and leases, net of unearned income	472,364,000		382,488,000	472,364,000	382,488,000
Total allowance for loans and lease losses	(5,726,000)		(2,765,000)	(5,726,000)	(2,765,000)
Total loans and leases, net	466,638,000		379,723,000	466,638,000	379,723,000
Goodwill	25,678,000		22,867,000	25,678,000	22,867,000
Core deposit and customer relationship intangibles, net	2,232,000		2,839,000	2,232,000	2,839,000
Total assets	510,630,000		428,899,000	510,630,000	428,899,000
Interest income	12,310,000	12,362,000	10,845,000	24,672,000	19,762,000
Intersegment interest income (expense)	(460,000)	(471,000)	(630,000)	(931,000)	(1,153,000)
Other interest expense	(196,000)	(143,000)	(225,000)	(339,000)	(443,000)
Net interest income	11,654,000	11,748,000	9,990,000	23,402,000	18,166,000
Total (provision) negative provision for credit losses	(765,000)	(801,000)	(100,000)	(1,566,000)	(100,000)
Noninterest income	592,000	544,000	713,000	1,136,000	1,879,000
Intangible asset amortization	(157,000)	(183,000)	(134,000)	(340,000)	(161,000)
Other noninterest expense	(5,980,000)	(6,053,000)	(6,444,000)	(12,033,000)	(11,256,000)
Total noninterest expense	(6,137,000)	(6,236,000)	(6,578,000)	(12,373,000)	(11,417,000)
Earnings from continuing operations before income taxes	5,344,000	5,255,000	4,025,000	10,599,000	8,528,000
Income taxes (expense) benefit	(2,237,000)	(2,199,000)	(1,750,000)	(4,436,000)	(3,650,000)
Net earnings from continuing operations	3,107,000			6,163,000
Net earnings	3,107,000	3,056,000	2,275,000	6,163,000	4,878,000
Other
Business segments
Total assets	9,270,000		16,452,000	9,270,000	16,452,000
Total deposits	(34,871,000)		(13,058,000)	(34,871,000)	(13,058,000)
Other interest expense	(882,000)	(783,000)	(848,000)	(1,665,000)	(2,039,000)
Net interest income	(882,000)	(783,000)	(848,000)	(1,665,000)	(2,039,000)
Noninterest income	26,000	23,000	25,000	49,000	63,000
Debt termination expense					1,597,000
Other noninterest expense	(1,398,000)	(1,416,000)	(1,316,000)	(2,814,000)	(2,714,000)
Total noninterest expense	(1,398,000)	(1,416,000)	(1,316,000)	(2,814,000)	(1,117,000)
Earnings from continuing operations before income taxes	(2,254,000)	(2,176,000)	(2,139,000)	(4,430,000)	(3,093,000)
Income taxes (expense) benefit	943,000	910,000	900,000	1,853,000	1,301,000
Net earnings from continuing operations	(1,311,000)			(2,577,000)
Net earnings	$ (1,311,000)	$ (1,266,000)	$ (1,239,000)	$ (2,577,000)	$ (1,792,000)