Consolidated balance sheets - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
ASSETS
Cash and due from banks	$ 69,798	$ 48,806
Federal funds sold	118,588	131,119
Interest-bearing deposits in financial institutions	874,005	52,756
Cash and cash equivalents	1,062,391	232,681
Investments:
Available-for-sale debt securities, at fair value	1,160,521	688,381
Equity securities, at fair value	4,389	3,295
Federal Home Loan Bank stock, at cost	31,232	15,976
Loans held for sale, at fair value	851,951	262,518
Loans	7,213,538	4,409,642
Less: allowance for credit losses	183,973	31,139
Net loans	7,029,565	4,378,503
Premises and equipment, net	136,774	90,131
Other real estate owned, net	12,748	18,939
Operating lease right-of-use assets	52,410	32,539
Interest receivable	47,120	17,083
Mortgage servicing rights, at fair value	71,535	75,521
Goodwill	236,086	169,051
Core deposit and other intangibles, net	23,924	17,589
Other assets	289,792	122,714
Total assets	11,010,438	6,124,921
Deposits
Noninterest-bearing	2,287,911	1,208,175
Interest-bearing checking	2,005,536	1,014,875
Money market and savings	3,236,670	1,520,035
Customer time deposits	1,471,556	1,171,502
Brokered and internet time deposits	92,074	20,351
Total deposits	9,093,747	4,934,938
Borrowings	438,838	304,675
Operating lease liabilities	56,705	35,525
Accrued expenses and other liabilities	176,057	87,454
Total liabilities	9,765,347	5,362,592
SHAREHOLDERS' EQUITY
Common stock, $1 par value per share; 75,000,000 shares authorized; 47,191,677 and 31,034,315 shares issued and outstanding at September 30, 2020 and December 31, 2019, respectively	47,192	31,034
Additional paid-in capital	896,158	425,633
Retained earnings	276,361	293,524
Accumulated other comprehensive income, net	25,287	12,138
Total common shareholders' equity	1,244,998	762,329
Noncontrolling interests	93	0
Total shareholders' equity	1,245,091	762,329
Total liabilities and shareholders' equity	$ 11,010,438	$ 6,124,921