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COMMITMENTS, CONTINGENCIES AND REGULATORY MATTERS - Narrative (Details) $ in Millions		1 Months Ended	3 Months Ended		12 Months Ended
	Feb. 01, 2018 plaintiff	Mar. 31, 2026 USD ($)	Mar. 31, 2026 USD ($)	Mar. 31, 2025 USD ($)	Dec. 31, 2025 USD ($)
Concentration Risk
Sublease income			$ 0.1	$ 0.2
Amounts held in escrow and trust accounts		$ 53.0	$ 53.0		$ 50.5
National Fair Housing Alliance v. Altisource Solutions, Inc.
Concentration Risk
Number of plaintiffs | plaintiff	18
Litigation settlement loss					$ 7.5
Amount paid to plaintiffs		5.0
Amount received from insurance provider		$ 5.0
Minimum
Concentration Risk
Lease term		1 year	1 year
Maximum
Concentration Risk
Lease term		6 years	6 years
Onity Financial Corporation | Revenue | Customer Concentration Risk
Concentration Risk
Revenue from largest customer (in percent)			37.00%	45.00%
Highly Correlated - Onity | Revenue Benchmark | Customer Concentration Risk
Concentration Risk
Revenue from largest customer (in percent)			4.00%
Rithm | Revenue | Customer Concentration Risk | Onity Financial Corporation
Concentration Risk
Revenue from largest customer (in percent)					10.00%
Percentage of delinquent loans Onity services (in percent)					0.50
Rithm | Revenue Benchmark | Customer Concentration Risk | Onity Financial Corporation
Concentration Risk
Revenue from largest customer (in percent)					10.00%

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