UNAUDITED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Operating activities
Net income (loss) from continuing operations	$ 64,978	$ (157,662)
Net income from discontinued operations	0	12,223
Net income (loss)	64,978	(145,439)
Adjustments to reconcile net income (loss) to net cash provided by operating activities
Provision for allowance for loan losses	13,577	7,526
Depreciation and amortization	6,742	6,053
Amortization of deferred loan fees and premiums, net	5,611	2,487
Deferred income tax expense (benefit)	9,890	(77,552)
Amortization of investment security premiums and discounts, net	2,271	3,871
Right-of-use asset amortization	5,161	5,481
Share-based compensation	7,831	7,712
Increase in cash surrender value of bank-owned life insurance	(2,008)	(1,928)
Loss on sale of securities available for sale, net	7,557	333,170
Employee Stock Ownership Plan expense	3,175	3,529
Other	329	327
Change in:
Loans held for sale	(151)	1,723
Prepaid pension expense	(889)	2,404
Other assets	(3,864)	(44,517)
Other liabilities	(33,360)	58,613
Net cash provided by operating activities - continuing operations	86,850	151,237
Net cash provided by operating activities - discontinued operations	0	21,709
Net cash provided by operating activities	86,850	172,946
Investing activities
Proceeds from sales of securities available for sale	85,220	1,899,724
Proceeds from maturities and principal paydowns of securities available for sale	173,584	230,154
Proceeds from maturities and principal paydowns of securities held to maturity	13,225	11,813
Proceeds from sale of Federal Home Loan Bank stock	3,638	168,578
Purchases of Federal Home Loan Bank stock	(3,613)	(154,109)
Contributions to low income housing tax credit investments	(27,261)	(19,178)
Contributions to other equity investments	(180)	(540)
Distributions from other equity investments	167	159
Net increase in outstanding loans, excluding loan purchases	(173,594)	(355,294)
Purchases of loans	0	(31,980)
Purchased banking premises and equipment	(6,512)	(2,190)
Net cash provided by investing activities - continuing operations	64,674	1,747,137
Net cash used in investing activities - discontinued operations	0	(47)
Net cash provided by investing activities	64,674	1,747,090
Financing activities
Net decrease in demand, savings, interest checking, and money market investment deposit accounts	(292,522)	(1,520,253)
Net increase in time deposits	234,114	726,866
Net increase (decrease) in borrowed funds	724	(389,617)
Dividends declared and paid to common shareholders	(36,068)	(32,390)
Net cash used in financing activities - continuing operations	(93,752)	(1,215,394)
Net cash used in financing activities - discontinued operations	0	(645)
Net cash used in financing activities	(93,752)	(1,216,039)
Net increase in cash, cash equivalents, and restricted cash	57,772	703,997
Cash, cash equivalents, and restricted cash at beginning of period	693,076	169,505
Cash, cash equivalents, and restricted cash at end of period	750,848	873,502
Cash paid during the period for:
Interest paid on deposits and borrowings	150,565	105,130
Income taxes	19,571	21,637
Non-cash activities
Net increase in capital commitments relating to low income housing tax credit projects	8,963	89,500
Net increase (decrease) in operating lease right-of-use assets and operating lease liabilities relating to lease remeasurements/modifications	$ 2,717	$ (4,423)