Consolidated Condensed Statements of Cash Flows - USD ($)	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Operating Activities
Net income	$ 48,717,000	$ 72,381,000
Items not requiring (providing) cash:
Provision for credit losses	7,501,000	(10,882,000)
Depreciation	2,884,000	3,256,000
Amortization of premium and discounts on loans, securities, deposits and debt obligations	5,162,000	1,888,000
Amortization of mortgage servicing rights, net of impairment charges/recoveries	1,251,000	(575,000)
Amortization of intangibles	2,818,000	3,197,000
Change in deferred taxes	(606,000)	2,582,000
Proceeds from the sale of loans held for sale	187,315,000	467,067,000
Originations of loans held for sale	(168,157,000)	(440,523,000)
Mortgage banking gain, net	(3,710,000)	(8,311,000)
Loss (gain) on sale / write-down of real estate and other assets held for sale	(65,000)	(11,000)
Loss (gain) on sale of available for sale securities	0	(1,985,000)
Loss (gain) on equity securities	1,804,000	(802,000)
Stock based compensation expense	917,000	1,207,000
Restricted stock forfeitures for taxes and option exercises	(334,000)	(617,000)
Income from bank owned life insurance	(1,979,000)	(2,028,000)
Changes in:
Accrued interest receivable and other assets	(35,105,000)	(10,767,000)
Other liabilities	24,327,000	(10,101,000)
Net cash provided by (used by) operating activities	72,740,000	64,976,000
Investing Activities
Proceeds from maturities, calls and pay-downs of available-for-sale securities	56,756,000	81,930,000
Proceeds from sale of available-for-sale securities	0	105,064,000
Proceeds from sale of premises and equipment, real estate and other assets held for sale	309,000	209,000
Purchases of available-for-sale securities	(122,457,000)	(740,534,000)
Purchases of equity securities	(1,000,000)	(11,053,000)
Net change in Federal Home Loan Bank stock	(12,406,000)	3,279,000
Purchases of premises and equipment, net	(1,342,000)	(630,000)
Proceeds from bank owned life insurance	0	893,000
Net (increase) decrease in loans receivable	(601,854,000)	144,510,000
Net cash used by investing activities	(681,994,000)	(416,332,000)
Financing Activities
Net increase in deposits and advance payments by borrowers	250,405,000	242,091,000
Net change in Federal Home Loan Bank advances	380,000,000	105,000,000
Net cash paid for repurchase of common stock	(26,868,000)	(4,851,000)
Cash dividends paid on common stock	(21,455,000)	(18,642,000)
Net cash provided by financing activities	582,082,000	323,598,000
Increase (decrease) in cash and cash equivalents	(27,172,000)	(27,758,000)
Cash and cash equivalents at beginning of period	161,566,000	159,266,000
Cash and cash equivalents at end of period	134,394,000	131,508,000
Supplemental cash flow information:
Interest paid	6,707,000	9,176,000
Income taxes paid	$ 7,110,000	3,000
Initial recognition of right-of-use asset		500,000
Initial recognition of lease liability		500,000
Transfers from loans to real estate and other assets held for sale		$ 120,000