Mortgage Servicing - Schedule of Composition of Servicing UPB (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Jun. 30, 2021	Dec. 31, 2020	Sep. 30, 2020
Transfers and Servicing [Abstract]
Owned MSRs	$ 136,316,900	$ 148,882,743	$ 90,174,495	$ 71,301,427
NRZ pledged MSRs	56,141,289	59,038,668	64,061,198	66,782,351
MAV pledged MSRs	13,570,892	0	0	0
Total MSR UPB	$ 206,029,081	$ 207,921,411	$ 154,235,693	$ 138,083,778

This amount represents the unpaid principal balance of loans serviced for which rights to mortgage servicing rights have been sold.

No definition available.

Name:	ocn_ServicingPortfolioOfLoansForWhichRightsToMortgageServicingRightsSold
Namespace Prefix:	ocn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant