Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Assets
Cash and due from banks	$ 139,713	$ 122,305
Interest-earning balances due from Federal Reserve	1,385,586	1,835,855
Total cash and cash equivalents	1,525,299	1,958,160
Interest-earning balances due from depository institutions	27,748	43,563
Investment securities available-for-sale, at fair value (with amortized cost of $2,797,990 at March 31, 2021, and $2,344,174 at December 31, 2020)	2,812,348	2,398,923
Investment securities held-to-maturity (with fair value of $1,085,481 at March 31, 2021, and $604,223 at December 31, 2020)	1,086,984	578,626
Total investment securities	3,899,332	2,977,549
Investment in stock of Federal Home Loan Bank (FHLB)	17,688	17,688
Loans and lease finance receivables	8,293,057	8,348,808
Allowance for credit losses	(71,805)	(93,692)
Net loans and lease finance receivables	8,221,252	8,255,116
Premises and equipment, net	49,735	51,144
Bank owned life insurance (BOLI)	223,905	226,818
Accrued interest receivable	34,825	31,306
Intangibles	31,467	33,634
Goodwill	663,707	663,707
Other real estate owned (OREO)	1,575	3,392
Income taxes	15,372	29,540
Other assets	128,533	127,697
Total assets	14,840,438	14,419,314
Deposits:
Noninterest-bearing	7,577,839	7,455,387
Interest-bearing	4,500,816	4,281,114
Total deposits	12,078,655	11,736,501
Customer repurchase agreements	506,346	439,406
Other borrowings	5,000	5,000
Deferred compensation	22,023	21,611
Junior subordinated debentures	25,774	25,774
Payable for securities purchased	80,973	60,113
Other liabilities	101,001	122,919
Total liabilities	12,819,772	12,411,324
Stockholders' Equity
Common stock, authorized, 225,000,000 shares without par; issued and outstanding 135,919,625 at March 31, 2021, and 135,600,501 at December 31, 2020	1,213,451	1,211,780
Retained earnings	800,259	760,861
Accumulated other comprehensive income, net of tax	6,956	35,349
Total stockholders' equity	2,020,666	2,007,990
Total liabilities and stockholders' equity	$ 14,840,438	$ 14,419,314