Consolidated Condensed Statements Of Income - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Interest income:
Interest and fees on loans	$ 150,555,000	$ 144,675,000	$ 447,735,000	$ 426,042,000
Interest on investment securities available-for-sale	23,233,000	23,254,000	69,355,000	70,038,000
Interest on investment securities held-to-maturity	66,000	66,000	198,000	198,000
Interest on loans held-for-sale	1,311,000	3,263,000	4,152,000	9,687,000
Interest on trading securities	8,056,000	7,737,000	26,108,000	23,529,000
Interest on other earning assets	466,000	(137,000)	1,237,000	307,000
Total interest income	183,687,000	178,858,000	548,785,000	529,801,000
Interest on deposits:
Savings	2,785,000	2,600,000	9,062,000	8,475,000
Time deposits	1,230,000	1,786,000	3,986,000	7,334,000
Other interest-bearing deposits	1,118,000	754,000	3,179,000	2,318,000
Certificates of deposit $100,000 and more	756,000	685,000	2,468,000	2,577,000
Interest on trading liabilities	4,258,000	3,782,000	11,942,000	11,440,000
Interest on short-term borrowings	664,000	1,265,000	2,436,000	3,565,000
Interest on term borrowings	9,314,000	8,445,000	28,644,000	25,424,000
Total interest expense	20,125,000	19,317,000	61,717,000	61,133,000
Net interest income	163,562,000	159,541,000	487,068,000	468,668,000
Provision for loan losses	1,000,000	6,000,000	8,000,000	21,000,000
Net interest income after provision for loan losses	162,562,000	153,541,000	479,068,000	447,668,000
Noninterest income:
Fixed income	51,804,000	47,589,000	169,664,000	152,109,000
Deposit transactions and cash management	28,911,000	28,546,000	83,892,000	82,913,000
Brokerage, management fees and commissions	11,620,000	12,333,000	35,475,000	37,452,000
Trust services and investment management	6,590,000	6,779,000	20,704,000	20,832,000
Bankcard income	5,561,000	5,521,000	16,631,000	17,960,000
Bank-owned life insurance	4,135,000	3,547,000	10,988,000	12,891,000
Other service charges	2,968,000	3,064,000	8,859,000	9,052,000
Mortgage banking	761,000	41,559,000	2,721,000	69,449,000
Insurance commissions	608,000	593,000	1,858,000	1,641,000
Equity securities gains/(losses), net	(345,000)	(862,000)	(61,000)	2,872,000
All other income and commissions (Note 7)	12,490,000	9,146,000	34,362,000	23,275,000
Total noninterest income	125,103,000	157,815,000	385,093,000	430,446,000
Adjusted gross income after provision for loan losses	287,665,000	311,356,000	864,161,000	878,114,000
Noninterest expense:
Employee compensation, incentives, and benefits (three and nine months ended September 30, 2015 include $6.3 million and $2.9 million, respectively, of benefit and three and nine months ended September 30, 2014 include $.9 million and $2.6 million, respectively, of expense associated with pension and post-retirement plans reclassified from accumulated other comprehensive income)	116,219,000	120,742,000	375,633,000	359,630,000
Occupancy	13,282,000	12,405,000	37,264,000	41,941,000
Computer software	11,010,000	10,614,000	33,292,000	32,357,000
Operations services	10,130,000	9,044,000	29,500,000	26,830,000
Equipment rentals, depreciation, and maintenance	7,093,000	7,150,000	22,296,000	22,441,000
Professional fees	5,139,000	6,187,000	14,063,000	16,379,000
Advertising and public relations	4,832,000	4,386,000	13,914,000	14,606,000
FDIC premium expense	4,529,000	3,456,000	12,929,000	8,583,000
Communications and courier	4,054,000	3,628,000	11,731,000	11,800,000
Legal fees	3,626,000	4,276,000	11,686,000	15,274,000
Contract employment and outsourcing	3,414,000	5,199,000	11,335,000	14,842,000
Amortization of intangible assets	1,298,000	982,000	3,894,000	2,945,000
Foreclosed real estate	431,000	788,000	1,629,000	2,011,000
Repurchase and foreclosure provision	0	(4,300,000)	0	(4,300,000)
All other expense (Note 7)	30,379,000	59,459,000	230,885,000	59,883,000
Total noninterest expense	215,436,000	244,016,000	810,051,000	625,222,000
Income/(loss) before income taxes	72,229,000	67,340,000	54,110,000	252,892,000
Provision/(benefit) for income taxes (three and nine months ended September 30, 2015 include $2.4 million and $1.1 million, respectively, of income tax expense and three and nine months ended September 30, 2014 include $.3 million and $1.0 million, respectively, of income tax benefit reclassified from accumulated other comprehensive income)	8,897,000	16,842,000	8,226,000	70,486,000
Net income/(loss)	63,332,000	50,498,000	45,884,000	182,406,000
Net income attributable to noncontrolling interest	2,977,000	2,875,000	8,586,000	8,547,000
Net income/(loss) attributable to controlling interest	60,355,000	47,623,000	37,298,000	173,859,000
Preferred stock dividends	1,550,000	1,550,000	4,650,000	4,650,000
Net income/(loss) available to common shareholders	$ 58,805,000	$ 46,073,000	$ 32,648,000	$ 169,209,000
Basic earnings/(loss) per share (Note 9)	$ 0.25	$ 0.2	$ 0.14	$ 0.72
Diluted earnings/(loss) per share Note 9)	$ 0.25	$ 0.19	$ 0.14	$ 0.71
Weighted average common shares (Note 9)	233,111,000	235,329,000	232,910,000	235,437,000
Diluted average common shares (Note 9)	235,058,000	236,862,000	234,838,000	237,169,000
Cash dividends declared per common share	$ 0.06	$ 0.05	$ 0.18	$ 0.15