CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Operating activities:
Net income	$ 96,953	$ 116,433	$ 100,864
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation and amortization	19,873	13,398	12,516
Provision for credit losses	85,669	4,684	9,023
Share based compensation expense	3,850	3,042	2,645
Deferred income tax / (benefit)	(29,568)	1,719	5,655
Origination of loans held for sale	(1,576,865)	(887,216)	(416,337)
Proceeds from sales of loans held for sale	1,585,690	869,294	441,023
Gains on sales of loans held for sale	(33,418)	(13,006)	(11,699)
Losses on sale of other real estate owned	32	173	200
Investment securities gains	(467)	(77)	(190)
Loss on sales of premises and equipment	0	269	0
Tax benefit/ (expense) associated with share based compensation	(133)	92	299
Net (increase)/ decrease in accrued interest receivable	(15,499)	1,327	(2,622)
Net (increase)/ decrease other assets	1,500	(3,664)	5,020
Net increase/ (decrease) accrued expenses and other liabilities	1,704	(5,804)	(2,721)
Other, net	2,660	(721)	3,970
Net cash provided by operating activities	141,981	99,943	147,646
Investing activities:
Sales/ (purchases) of equity securities	(3,553)		(8,784)
Sales/ (purchases) of equity securities		21,586
Purchases of investments available-for-sale	(633,741)	(326,604)	(161,349)
Proceeds from sales of investment available-for-sale	121,357	2,926	117,354
Proceeds from maturities, calls and principal payments of investments available-for-sale	441,672	199,652	106,114
Net increase in loans	(1,174,467)	(134,012)	(641,521)
Proceeds from the sales of other real estate owned	60	324	1,151
Proceeds from sale of loans held for investment	0	0	59,945
Cash paid for the acquisition of business activity of RPJ, net of cash acquired	(26,925)	0	0
Expenditures for premises and equipment	(5,041)	(5,148)	(10,401)
Net cash used in investing activities	(1,200,196)	(241,276)	(505,004)
Financing activities:
Net increase in deposits	1,270,328	525,439	340,376
Net increase/ (decrease) in in retail repurchase agreements and federal funds purchased	329,552	(113,824)	201,184
Proceeds from advances from borrowings	400,000	2,298,000	5,477,000
Repayment of advances from borrowings	(703,117)	(2,457,834)	(5,633,579)
Retirement of subordinated debt	(10,310)	0	0
Proceeds from issuance of common stock	1,997	1,433	1,395
Stock tendered for payment of withholding taxes	(458)	(703)	(760)
Repurchase of Common Stock	(25,702)	(24,284)	0
Dividends paid	(53,175)	(42,272)	(39,277)
Net cash provided by financing activities	1,209,115	185,955	346,339
Net increase/ (decrease) in cash and cash equivalents	150,900	44,622	(11,019)
Cash and cash equivalents at beginning of year	146,103	101,481	112,500
Cash and cash equivalents at end of year	297,003	146,103	101,481
Supplemental Disclosures:
Interest payments	62,637	84,448	60,504
Income tax payments, net of refunds of $3,755 in 2020	56,430	33,795	25,664
Transfers from loans to residential mortgage loans held for sale	0	0	60,043
Transfers from loans to other real estate owned	70	414	289
WashingtonFirst Bankshares Inc
Investing activities:
Cash acquired in the acquisition of business activity, net of cash paid	0	0	32,487
Revere Bank
Investing activities:
Cash acquired in the acquisition of business activity, net of cash paid	$ 80,442	$ 0	$ 0