CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Assets
Cash and due from banks	$ 629,011	$ 243,603
Mortgage-backed securities available-for-sale, at fair value	1,212,383	426,979
Investment securities available-for-sale, at fair value	496,680	111,882
Investment securities held-to-maturity	40,303
Marketable equity securities, at fair value		5,970
Loans held for sale	14,720	5,903
Loans held for investment, net:
Loans	9,284,871	5,622,044
Allowance for credit losses	(81,255)	(41,461)
Total loans held for investment, net	9,203,616	5,580,583
Premises and fixed assets, net	49,615	19,053
Premises held for sale	2,799
Restricted stock	37,719	60,707
Bank Owned Life Insurance ("BOLI")	293,898	156,096
Goodwill	155,339	55,638
Other intangible assets	9,077
Operating lease assets	56,836	33,898
Derivative assets	41,700	18,932
Accrued interest receivable	43,284	34,815
Other assets	77,401	27,551
Total assets	12,364,381	6,781,610
Due to depositors:
Interest-bearing deposits	6,852,205	3,744,371
Non-interest-bearing deposits	3,821,832	780,751
Total deposits	10,674,037	4,525,122
Federal Home Loan Bank of New York ("FHLBNY") advances	25,000	1,204,010
Other short-term borrowings	2,629	120,000
Subordinated debt, net	197,142	114,052
Operating lease liabilities	62,870	39,874
Derivative liabilities	38,889	37,374
Other liabilities	162,697	40,082
Total liabilities	11,163,264	6,080,514
Commitments and contingencies
Stockholders' equity:
Preferred stock, Series A ($0.01 par, $25.00 liquidation value, 10,000,000 shares authorized and 5,299,200 shares issued and outstanding at September 30, 2021 and December 31, 2020)	116,569	116,569
Common stock ($0.01 par 80,000,000 shares authorized, 41,599,973 shares and 34,813,302 shares issued at September 30, 2021 and December 31, 2020, respectively, and 40,714,828 shares and 21,232,984 shares outstanding at September 30, 2021 and December 31, 2020, respectively)	416	348
Additional paid-in capital	493,775	278,295
Retained earnings	630,744	600,641
Accumulated other comprehensive loss, net of deferred taxes	(1,042)	(5,924)
Unearned equity awards	(9,417)
Common stock held by the Benefit Maintenance Plan ("BMP")		(1,496)
Treasury stock, at cost (885,145 shares and 13,580,318 shares at September 30, 2021 and December 31, 2020, respectively)	(29,928)	(287,337)
Total stockholders' equity	1,201,117	701,096
Total liabilities and stockholders' equity	12,364,381	6,781,610
Real estate
Loans held for investment, net:
Loans	8,251,743	4,978,195
Commercial and Industrial ("C&I") Loans
Loans held for investment, net:
Loans	1,012,415	641,533
Other Loans
Loans held for investment, net:
Loans	$ 20,713	$ 2,316