MSRs - Narrative (Details)	3 Months Ended
	Mar. 31, 2021 USD ($) numberOfMortgageSub-servicers	Mar. 31, 2020 USD ($)
Mortgage Servicing Rights MSR [Line Items]
Number of licensed sub-servicers | numberOfMortgageSub-servicers	2
Mortgage servicing rights
Mortgage Servicing Rights MSR [Line Items]
Loans associated with MSRs | $	$ 152,465,708	$ 315,173,382