Quarterly report pursuant to Section 13 or 15(d)

Mortgage Servicing Rights Pledged as Collateral for Financing (Details)

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Mortgage Servicing Rights Pledged as Collateral for Financing (Details) - USD ($)
$ in Thousands
Sep. 30, 2022
Jun. 30, 2022
Dec. 31, 2021
Sep. 30, 2021
Jun. 30, 2021
Dec. 31, 2020
Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together [Line Items]            
Mortgage servicing rights, at fair value $ 3,021,790 $ 3,226,191 $ 2,191,578 $ 2,213,312 $ 2,020,106 $ 1,596,153
Asset Pledged as Collateral            
Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together [Line Items]            
Mortgage servicing rights, at fair value $ 3,000,000   $ 2,100,000