Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
ASSETS
Cash and due from banks	$ 222,015	$ 370,219
Interest bearing cash and temporary investments	2,539,606	2,202,962
Total cash and cash equivalents	2,761,621	2,573,181
Investment securities
Equity and other, at fair value	81,214	83,077
Available for sale, at fair value	3,870,435	2,932,558
Held to maturity, at amortized cost	2,744	3,034
Loans held for sale (at fair value: $353,105 and $688,079)	353,105	766,225
Loans and leases (at fair value: $345,634 and $0)	22,553,180	21,779,367
Allowance for credit losses on loans and leases	(248,412)	(328,401)
Net loans and leases	22,304,768	21,450,966
Restricted equity securities	10,916	41,666
Premises and equipment, net	171,125	178,050
Operating lease right-of-use assets	82,366	104,937
Goodwill	0	2,715
Other intangible assets, net	8,840	13,360
Residential mortgage servicing rights, at fair value	123,615	92,907
Bank owned life insurance	327,745	323,470
Other assets	542,442	669,029
Total assets	30,640,936	29,235,175
Deposits, Interest-bearing and Noninterest-bearing, Alternative [Abstract]
Non-interest bearing	11,023,724	9,632,773
Interest bearing	15,570,961	14,989,428
Total deposits	26,594,685	24,622,201
Securities sold under agreements to repurchase	492,247	375,384
Borrowings	6,329	771,482
Junior subordinated debentures, at fair value	293,081	255,217
Junior subordinated debentures, at amortized cost	88,041	88,268
Operating lease liabilities	95,427	113,593
Deferred tax liability, net	4,353	5,441
Other liabilities	317,503	299,012
Total liabilities	27,891,666	26,530,598
COMMITMENTS AND CONTINGENCIES (NOTE 18)
SHAREHOLDERS' EQUITY
Common Stock, Value, Issued	3,444,849	3,514,599
Accumulated deficit	(697,338)	(932,767)
Accumulated other comprehensive income	1,759	122,745
Total shareholders' equity	2,749,270	2,704,577
Total liabilities and shareholders' equity	$ 30,640,936	$ 29,235,175