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Note 4 - Segment Reporting (Policies)
 3 Months Ended
Mar. 31, 2021
Segment Reporting [Abstract]  
Segment Reporting, Policy
We have two strategic business units that we manage separately—Mortgage and Real Estate. Our Mortgage segment derives its revenue from mortgage insurance and other mortgage and risk services, including contract underwriting services provided to lenders. Our Real Estate segment offers a broad array of title, valuation, asset management and other real estate services to market participants across the real estate value chain. In addition, we report as All Other activities that include: (i) income (losses) from assets held by our holding company; (ii) related general corporate operating expenses not attributable or allocated to our reportable segments; (iii) for all periods through its sale in January 2020, income and expenses related to Clayton; (iv) for all periods presented, the income and expenses related to our traditional appraisal services, which we wound down beginning in the fourth quarter of 2020; and (v) certain other immaterial revenue and expense items.
As described in Note 4 of Notes to Consolidated Financial Statements in our 2020 Form 10-K, we implemented several changes to our segment reporting in 2020, including related to the wind down of our traditional appraisal business announced in the fourth quarter of 2020. All changes to the composition of our segment reporting have been reflected in our segment operating results for all periods presented. See Note 1 for additional details about our Mortgage and Real Estate businesses.
We allocate corporate operating expenses to both reportable segments based on each segment’s forecasted annual percentage of total revenue, which approximates the estimated percentage of management time spent on each segment. In addition, we allocate all corporate interest expense to our Mortgage segment, due to the capital-intensive nature of our mortgage insurance business.