Loan Servicing (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2017
Mortgage Banking [Abstract]
Servicing rights				$ 1,269,080,000	$ 185,897,000
Servicing rights, fair value				12,086,921	1,763,144
Servicing Asset at Amortized Cost, Balance [Roll Forward]
Carrying value at beginning of period	$ 8,976,000	$ 1,618,000	$ 1,545,000	$ 8,976,000	$ 1,618,000	$ 0
Acquisitions	0	0	1,689,000
Additions	8,298,000	325,000	28,000
Amortization	(940,000)	(252,000)	(172,000)
Carrying value at end of period	$ 8,976,000	$ 1,618,000	$ 1,545,000