CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Statement of Cash Flows [Abstract]
Net income	$ 31,131	$ 27,401
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for credit losses	3,049	2,233
Depreciation of premises and equipment	1,146	1,177
Depreciation of equipment owned and leased to others	2,022	3,015
Stock-based compensation	1,121	732
Amortization of investment securities premiums and accretion of discounts, net	855	967
Amortization of mortgage servicing rights	221	381
Amortization of right of use assets	778	785
Deferred income taxes	(993)	80
Losses on investment securities available-for-sale	44	0
Originations of loans held for sale, net of principal collected	(8,862)	(32,314)
Proceeds from the sales of loans held for sale	10,934	41,456
Net gain on sale of loans held for sale	(226)	(615)
Net gain on sale of other real estate and repossessions	(39)	(47)
Change in interest receivable	(125)	(530)
Change in interest payable	7,599	199
Change in other assets	(5,422)	9,099
Change in other liabilities	3,987	(10,882)
Other	(367)	(1,334)
Net Cash Provided by (Used in) Operating Activities	46,853	41,803
Investing activities:
Proceeds from sales of investment securities available-for-sale	64,928	0
Proceeds from maturities and paydowns of investment securities available-for-sale	25,341	57,392
Purchases of investment securities available-for-sale	(3,000)	(145,843)
Net change in partnership investments	(5,274)	(2,128)
Net change in other investments	0	1,651
Loans sold or participated to others	16,026	7,987
Proceeds from principal payments on direct finance leases	13,043	9,377
Net change in loans and leases	(134,913)	(66,069)
Net change in equipment owned under operating leases	(405)	3,626
Purchases of premises and equipment	(408)	(113)
Proceeds from disposal of premises and equipment	2	14
Proceeds from sales of other real estate and repossessions	391	1,983
Net Cash Provided by (Used in) Investing Activities	(24,269)	(132,123)
Financing activities:
Net change in demand deposits and savings accounts	(397,447)	26,143
Net change in time deposits	270,646	(32,116)
Net change in short-term borrowings	87,507	(869)
Payments on long-term debt	(2,727)	(2,440)
Acquisition of treasury stock	(766)	(2,175)
Net (distributions to) contributions from noncontrolling interests	(420)	1,400
Cash dividends paid on common stock	(8,137)	(7,918)
Net change in financing activities	(51,344)	(17,975)
Net change in cash and cash equivalents	(28,760)	(108,295)
Cash and cash equivalents, beginning of year	122,797	525,187
Cash and cash equivalents, end of period	94,037	416,892
Non-cash transactions:
Loans transferred to other real estate and repossessed assets	484	1,150
Common stock matching contribution to Employee Stock Ownership and Profit Sharing Plan	1,753	683
Right of use assets obtained in exchange for lease obligations	$ 2,495	$ 116