CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
ASSETS
Cash and due from banks	$ 118,258	$ 135,429
Interest-bearing deposits with financial institutions	1,436,410	745,337
Cash and cash equivalents	1,554,668	880,766
Interest-bearing time deposits with financial institutions	2,708	2,845
Investments held-to-maturity, at amortized cost (fair value of $23,004 and $25,013 as of March 31, 2021 and December 31, 2020, respectively)	21,931	23,732
Investment securities available-for-sale, at fair value	3,857,337	3,931,115
FHLB, FRB, and other stock, at cost	117,843	117,055
Loans held for sale, at lower of cost or fair value	7,311	601
Loans held for investment	13,117,392	13,236,433
Allowance for credit losses	(266,999)	(268,018)
Loans held for investment, net	12,850,393	12,968,415
Accrued interest receivable	65,098	74,574
Premises and equipment	76,329	78,884
Deferred income taxes, net	104,450	89,056
Bank owned life insurance	292,932	292,564
Intangible assets	81,364	85,507
Goodwill	900,204	898,569
Other assets	240,730	292,861
Total assets	20,173,298	19,736,544
Deposit accounts:
Noninterest-bearing checking	6,302,703	6,011,106
Interest-bearing:
Checking	3,155,071	2,913,260
Money market/savings	5,911,417	5,662,969
Retail certificates of deposit	1,353,431	1,471,512
Wholesale/brokered certificates of deposit	17,385	155,330
Total interest-bearing	10,437,304	10,203,071
Total deposits	16,740,007	16,214,177
FHLB advances and other borrowings	10,000	31,000
Subordinated debentures	501,611	501,511
Accrued expenses and other liabilities	218,582	243,207
Total liabilities	17,470,200	16,989,895
STOCKHOLDERS’ EQUITY
Preferred stock, $0.01 par value; 1,000,000 authorized; none issued and outstanding	0	0
Common stock, $0.01 par value; 150,000,000 shares authorized at March 31, 2021 and December 31, 2020; 94,644,415 shares and 94,483,136 shares issued and outstanding, respectively.	931	931
Additional paid-in capital	2,348,445	2,354,871
Retained earnings	368,911	330,555
Accumulated other comprehensive (loss) income	(15,189)	60,292
Total stockholders’ equity	2,703,098	2,746,649
Total liabilities and stockholders’ equity	$ 20,173,298	$ 19,736,544