Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Cash Flows From Operating Activities
Net income	$ 45,871	$ 39,970
Adjustments to reconcile net income to net cash provided by operating activities
Provision for loan and lease losses	1,362	5,852
Stock-based compensation expense	2,285	2,064
Depreciation, amortization and accretion	8,182	7,618
Investment securities gains, net	1,847	22
Net realized (gain) loss on sale of premises and equipment and loans held for investment	(1)	630
Net realized loss on sale and valuation adjustments of OREO	(209)	(135)
Originations of loans held for sale	21,542	27,553
Proceeds from sales of loans held for sale	21,374	29,007
Net change in:
Interest receivable	(1,512)	(914)
Interest payable	1,154	452
Other assets	(5,244)	2,530
Other liabilities	2,179	(15,014)
Net cash provided by operating activities	52,472	43,495
Cash Flows From Investing Activities
Loans originated, net of principal collected	(80,407)	17,688
Purchases of debt securities available for sale	(3,710)	(27,497)
Payments to Acquire Loans Held-for-investment	(49,039)	0
Purchases of premises and equipment	(1,788)	(2,099)
Payments to Acquire Federal Home Loan Bank Stock	(57,280)	(45,080)
Proceeds from sales of debt securities available for sale	83,968	19,761
Proceeds from principal repayments and maturities of debt securities available for sale	100,876	82,643
Proceeds from Sales of Assets, Investing Activities	11	3,721
Proceeds from redemption of Federal Home Loan Bank Stock	57,640	43,880
Proceeds from sales of other real estate and other personal property owned	150	2,062
Net cash provided by investing activities	50,421	95,079
Cash Flows From Financing Activities
Net decrease in deposits	(89,027)	(136,466)
Net decrease in sweep repurchase agreements (1)	(38,076)	(29,812)	[1]
Proceeds from Federal Home Loan Bank advances	1,432,000	1,127,000
Proceeds from exercise of stock options	878	719
Repayment of Federal Home Loan Bank advances	(1,441,000)	(1,097,000)
Payment of common stock dividends	(30,750)	(16,069)
Repayments of junior subordinated debt	0	8,248
Repayment of term repurchase agreement	0	(25,000)	[1]
Purchase and retirement of common stock	2,432	2,575
Net cash used in financing activities	(168,407)	(187,451)
Decrease in cash and cash equivalents	(65,514)	(48,877)
Cash and cash equivalents at beginning of period	277,587	342,533
Cash and cash equivalents at end of period	212,073	293,656
Supplemental Information:
Cash paid for interest	6,712	3,211
Cash paid for income tax	(146)	24
Non-cash investing and financing activities
Loans transferred to other real estate owned	386	406
Premises and equipment expenditures incurred but not yet paid	35	0
Change in dividends payable on unvested shares	$ 14	$ 0

[1] Revised from amounts previously reported to correct an immaterial misclassification of a $25.0 million repayment of the term repurchase agreement within Net decrease in sweep repurchase agreements for the three months ended March 31, 2018. There were no changes to net cash flows from operating, investing or financing activities as a result of this change.