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Segment Reporting | 12 Months Ended
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Dec. 31, 2024
Segment Reporting [Abstract] |
Segment Reporting | Segment Reporting We operate as a single reportable segment, which is defined as Mortgage Insurance. This segment generates revenue through mortgage insurance and reinsurance provided under the GSEs credit risk transfer programs. The results of our Mortgage Insurance segment are reported within our financial statements as the consolidated financial results for MGIC Investment Corporation and Subsidiaries. The accounting policies of the Mortgage Insurance segment are the same as those described in Note 3. Significant Accounting Policies. The Senior Management Oversight Committee (“SMOC”), acts as the Company's chief operating decision maker (“CODM”). The CODM uses consolidated net income (loss) as the primary GAAP measure to evaluate actual financial performance versus planned financial performance and to allocate resources. The measure of segment assets is reported on the balance sheet as total consolidated assets. The table below presents a disaggregation of significant segment expenses as monitored by our CODM:
Significant segment expenses
Table | 18.1 |  |  |  |  |  |
|  | Years Ended December 31,
(In thousands) |  | 2024 |  | 2023 |  | 2022
Other underwriting and operating expenses net: |  |  |  |  |  |
Employee costs |  | $ | 157,937 |  |  | $ | 176,682 |  |  | $ | 170,914 |
Outside services (1) |  | 32,667 |  |  | 36,099 |  |  | 55,612 |
Premium taxes (2) |  | 21,547 |  |  | 21,523 |  |  | 21,469 |
Depreciation expense |  | 4,179 |  |  | 4,626 |  |  | 4,938 |
All other underwriting and operating (3) |  | (7,006) |  |  | (12,926) |  |  | (16,236) |
Total other underwriting and operating expenses net |  | $ | 209,324 |  |  | $ | 226,004 |  |  | $ | 236,697 |
(1)Outside services expense generally includes expenses related to outsourced IT services and consulting services. (2)Premium taxes are taxes paid to states and municipalities based upon the amount of premiums written. (3)All other underwriting and operating expenses include ceding commissions (a reduction to our underwriting expenses, see Note 9 - "Reinsurance"), computer hardware and software expenses, legal, audit, insurance, and general and administrative expenses.

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- Definition The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 48 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482785/280-10-55-48 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards 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