Consolidated Condensed Statements of Cash Flows - USD ($)	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Operating Activities
Net income (loss)	$ 72,381,000	$ 6,575,000
Items not requiring (providing) cash:
Provision (benefit) for credit losses	(10,882,000)	48,220,000
Depreciation	3,256,000	3,105,000
Amortization of premium and discounts on loans, securities, deposits and debt obligations	1,888,000	(2,607,000)
Amortization of mortgage servicing rights, net of impairment charges/recoveries	(575,000)	9,198,000
Amortization of intangibles	3,197,000	3,054,000
Change in deferred taxes	2,582,000	(10,418,000)
Proceeds from the sale of loans held for sale	467,067,000	331,341,000
Originations of loans held for sale	(440,523,000)	(406,074,000)
Mortgage banking gain, net	(8,311,000)	(16,666,000)
Gain/loss on sale / write-down of real estate and other assets held for sale	(11,000)	17,000
Gain/loss on sale of available for sale securities	(1,985,000)	2,000
Gain on equity securities	(802,000)	0
Stock based compensation expense	1,207,000	1,592,000
Restricted stock forfeitures for taxes and option exercises	(617,000)	(1,496,000)
Income from bank owned life insurance	(2,028,000)	(1,619,000)
Changes in:
Accrued interest receivable and other assets	(10,767,000)	(20,255,000)
Other liabilities	(10,101,000)	22,123,000
Net cash provided by (used by) operating activities	64,976,000	(33,908,000)
Investing Activities
Proceeds from maturities, calls and pay-downs of available-for-sale securities	81,930,000	50,544,000
Proceeds from sale of available-for-sale securities	105,064,000	622,000
Proceeds from sale of premises and equipment, real estate and other assets held for sale	209,000	509,000
Proceeds from sale of non-mortgage loans		5,241,000
Purchases of available-for-sale securities	(740,534,000)	(61,725,000)
Purchases of equity securities	(11,053,000)
Net change in Federal Home Loan Bank stock	3,279,000	(21,287,000)
Net cash received (paid) from acquisition (Reference Footnote 17 Business Combinations)		52,448,000
Purchases of premises and equipment, net	(630,000)	(2,822,000)
Proceeds from bank owned life insurance	893,000
Net increase in loans receivable	144,510,000	(386,945,000)
Net cash used by investing activities	(416,332,000)	(363,415,000)
Financing Activities
Net increase in deposits and advance payments by borrowers	242,091,000	808,121,000
Net change in Federal Home Loan Bank advances	105,000,000	(326,736,000)
Decrease in securities sold under repurchase agreements		3,949,000
Net cash paid for repurchase of common stock	(4,851,000)	(10,095,000)
Cash dividends paid on common stock	(18,642,000)	(16,489,000)
Net cash provided by financing activities	323,598,000	458,750,000
Increase (decrease) in cash and cash equivalents	(27,758,000)	61,427,000
Cash and cash equivalents at beginning of period	159,266,000	131,254,000
Cash and cash equivalents at end of period	131,508,000	192,681,000
Supplemental cash flow information:
Interest paid	9,176,000	17,751,000
Income taxes paid	3,000
Initial recognition of right-of-use asset	500,000	10,100,000
Initial recognition of lease liability	500,000	10,249,000
Initial recognition of ASC 326		2,566,000
Transfers from loans to real estate and other assets held for sale	$ 120,000	$ 97,000