Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Operating Activities
Net Income (Loss)	$ 53,633	$ 41,535
Adjustments to reconcile net income to net cash provided by operating activities:
PCL	5,294	7,516
Depreciation and amortization	8,571	8,563
Net (accretion) amortization of securities	(5,912)	1,373
Gains on sales of loans, net	(4,252)	(5,010)
Compensation expense, long-term incentive plan	2,471	2,238
Deferred income tax provision	(1,050)	28,490
Proceeds from sales of loans held for sale	260,005	263,634
Purchases and originations of loans held for sale	(245,760)	(247,476)
Originations of mortgage servicing rights	(3,068)	(2,977)
Earnings on bank-owned life insurance	(1,865)	(1,420)
Net change in other assets	24,872	(21,036)
Net change in other liabilities	(12,430)	(127,283)
Other operating activities, net	1,909	(6,690)
Net cash from operating activities	82,418	(58,543)
Investing Activities
Proceeds from maturities, prepayments and calls of securities held to maturity	23,738	24,000
Proceeds from maturities, prepayments and calls of securities available for sale	52,559	56,706
Purchases of securities held to maturity	0	(9,136)
Purchases of securities available for sale	(58,955)	0
Net proceeds from bank-owned life insurance	644	0
Net change in member bank stock	(2,374)	(743)
Net change in LHFI	(156,339)	(114,096)
Purchases of premises and equipment	(1,772)	(5,050)
Proceeds from sales of premises and equipment	3,229	0
Proceeds from sales of other real estate	801	902
Purchases of software	(2,511)	(2,044)
Investments in tax credit and other partnerships	(2,655)	(1,848)
Net cash from investing activities	(143,635)	(51,309)
Financing Activities
Net change in deposits	(27,471)	(231,206)
Net change in federal funds purchased and securities sold under repurchase agreements	36,072	(12,530)
Net change in short-term borrowings	105,000	0
Payments on long-term FHLB advances	0	(5)
Payments under finance lease obligations	(112)	(99)
Common stock dividends	(14,732)	(14,207)
Repurchase and retirement of common stock	(15,014)	0
Shares withheld to pay taxes, long-term incentive plan	(2,415)	(1,383)
Net cash from financing activities	81,328	(259,430)
Net change in cash and cash equivalents	20,111	(369,282)
Cash and cash equivalents at beginning of period	567,251	975,343
Cash and cash equivalents at end of period	$ 587,362	$ 606,061