Mortgage Servicing - Schedule of Composition of Servicing UPB (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Transfers and Servicing [Abstract]
Owned MSRs	$ 90,174,495	$ 70,973,496	$ 68,236,270
NRZ pledged MSRs	64,061,198	108,837,877	126,643,940
Total MSR UPB	$ 154,235,693	$ 179,811,373	$ 194,880,210

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