Condensed Consolidated Statements of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
INTEREST INCOME
Interest and fees on loans and leases	$ 278,830	$ 224,403	$ 727,908	$ 669,014
Interest and dividends on investment securities:
Taxable	18,175	16,102	54,156	43,833
Exempt from federal income tax	1,322	1,470	4,063	4,491
Dividends	86	213	256	1,216
Interest on temporary investments and interest bearing deposits	5,115	1,237	9,387	2,635
Total interest income	303,528	243,425	795,770	721,189
INTEREST EXPENSE
Interest on deposits	9,090	5,100	17,021	22,794
Interest on securities sold under agreement to repurchase and federal funds purchased	545	88	674	232
Interest on borrowings	798	149	897	2,787
Interest on junior subordinated debentures	5,491	3,014	12,641	9,108
Total interest expense	15,924	8,351	31,233	34,921
Net interest income	287,604	235,074	764,537	686,268
PROVISION (RECAPTURE) FOR CREDIT LOSSES	27,572	(18,919)	51,068	(41,915)
Net interest income after provision (recapture) for credit losses	260,032	253,993	713,469	728,183
NON-INTEREST INCOME
Residential mortgage banking revenue, net	17,341	34,150	108,671	143,626
Gain on sale of debt securities, net	0	0	2	4
Loss on equity securities, net	(2,647)	(343)	(7,383)	(1,045)
Gain on loan and lease sales, net	1,525	4,208	5,165	10,899
Bank owned life insurance income	2,023	2,038	6,220	6,201
Noninterest Income, Other Operating Income	(10,571)	13,569	(12,670)	51,157
Total non-interest income	29,445	73,705	164,649	273,580
NON-INTEREST EXPENSE
Salaries and employee benefits	109,164	117,636	333,244	363,343
Occupancy and equipment, net	35,042	33,944	104,430	103,236
Communications	2,542	2,866	7,881	8,633
Marketing	1,505	1,651	5,552	5,077
Services	13,355	12,017	39,094	36,279
FDIC assessments	3,007	2,136	10,477	6,342
Intangible amortization	1,025	1,130	3,076	3,390
Merger related expenses	769	0	5,719	0
Other expenses	11,555	12,373	30,495	34,445
Total non-interest expense	177,964	183,753	539,968	560,745
Income before provision for income taxes	111,513	143,945	338,150	441,018
Provision for income taxes	27,473	35,879	84,362	109,072
Net income	$ 84,040	$ 108,066	$ 253,788	$ 331,946
Earnings per common share:
Basic (in dollars per share)	$ 0.39	$ 0.49	$ 1.17	$ 1.51
Diluted (in dollars per share)	$ 0.39	$ 0.49	$ 1.17	$ 1.51
Weighted average number of common shares outstanding:
Basic (in shares)	217,051	218,416	216,955	219,791
Diluted (in shares)	217,386	218,978	217,353	220,278
Service charges on deposits
NON-INTEREST INCOME
Revenue from contract with customer	$ 12,632	$ 10,941	$ 36,226	$ 30,898
Card-based Fees
NON-INTEREST INCOME
Revenue from contract with customer	9,115	9,111	28,353	26,759
Brokerage revenue
NON-INTEREST INCOME
Revenue from contract with customer	$ 27	$ 31	$ 65	$ 5,081