Condensed Consolidated Statements of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
INTEREST INCOME
Interest and fees on loans and leases	$ 235,174	$ 264,110	$ 481,167	$ 522,857
Interest and dividends on investment securities:
Taxable	9,015	10,287	25,620	30,243
Exempt from federal income tax	1,520	1,921	3,082	4,035
Dividends	568	574	1,246	1,091
Interest on temporary investments and interest bearing deposits	403	4,708	3,734	5,633
Total interest income	246,680	281,600	514,849	563,859
INTEREST EXPENSE
Interest on deposits	26,222	43,591	66,512	77,685
Interest on securities sold under agreement to repurchase and federal funds purchased	194	403	589	1,213
Interest on borrowings	3,839	4,563	7,885	8,246
Interest on junior subordinated debentures	3,922	5,881	8,825	11,868
Total interest expense	34,177	54,438	83,811	99,012
Net interest income	212,503	227,162	431,038	464,847
PROVISION FOR CREDIT LOSSES	87,085	19,352	205,170	33,036
Net interest income after provision for credit losses	125,418	207,810	225,868	431,811
NON-INTEREST INCOME
Residential mortgage banking revenue, net	83,877	9,529	101,417	20,760
Gain (loss) on sale of debt securities, net	323	(7,186)	190	(7,186)
Gain on equity securities, net	240	82,607	1,054	83,302
Gain on loan and lease sales, net	1,074	3,333	2,241	4,102
BOLI income	2,116	2,093	4,245	4,261
Total non-interest income	115,480	121,823	156,125	167,563
NON-INTEREST EXPENSE
Salaries and employee benefits	116,676	104,049	226,450	204,707
Occupancy and equipment, net	36,171	36,032	73,172	72,277
Communications	2,939	3,906	6,067	8,126
Marketing	1,759	4,312	4,289	7,038
Services	10,356	13,227	21,126	25,437
FDIC assessments	3,971	2,837	6,513	5,779
Intangible amortization	1,246	1,405	2,493	2,809
Goodwill impairment	0	0	1,784,936	0
Other expenses	8,792	14,647	19,522	25,834
Total non-interest expense	181,910	180,415	2,144,568	352,007
Income (loss) before provision for income taxes	58,988	149,218	(1,762,575)	247,367
Provision for income taxes	6,062	37,408	36,446	61,524
Net income (loss)	$ 52,926	$ 111,810	$ (1,799,021)	$ 185,843
Earnings (loss) per common share:
Basic (in dollars per share)	$ 0.24	$ 0.51	$ (8.17)	$ 0.84
Diluted (in dollars per share)	$ 0.24	$ 0.51	$ (8.17)	$ 0.84
Weighted average number of common shares outstanding:
Basic (in shares)	220,210	220,487	220,213	220,427
Diluted (in shares)	220,320	220,719	220,213	220,692
Service charges on deposits
NON-INTEREST INCOME
Revenue from contract with customer	$ 11,831	$ 15,953	$ 27,469	$ 31,231
Brokerage revenue
NON-INTEREST INCOME
Revenue from contract with customer	3,805	3,980	7,820	7,790
Other income
NON-INTEREST INCOME
Revenue from contract with customer	$ 12,214	$ 11,514	$ 11,689	$ 23,303