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v3.25.1

Segment Information - Schedule of Segment Reporting Information, by Segment (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2025 | Mar. 31, 2024
Segment Reporting Information [Line Items] |  |
Total operating revenue | $ 989,399 | $ 880,701
Total operating expenses | 838,023 | 741,889
Operating income | 151,376 | 138,812
Total investment income | 19,536 | 15,079
Other income | 3,834 | 3,411
Income tax expense | 36,329 | 32,750
Net income | $ 138,417 | $ 124,552
Erie Insurance Exchange |  |
Segment Reporting Information [Line Items] |  |
Depreciation and amortization expense reimbursed from the Exchange and its insurance subsidiaries (as a percent) | 29.00% | 27.00%
Management Operations |  |
Segment Reporting Information [Line Items] |  |
Total operating revenue | $ 989,399 | $ 880,701
Commissions | 436,860 | 375,760
Underwriting and policy processing | 51,260 | 48,168
Information technology | 64,785 | 53,490
Sales and advertising | 17,375 | 17,207
Customer service | 11,687 | 10,080
Administrative and other | 45,783 | 45,617
Total operating expenses | 838,023 | 741,889
Operating income | 151,376 | 138,812
Total investment income | 19,536 | 15,079
Other income | 3,834 | 3,411
Income tax expense | 36,329 | 32,750
Net income | 138,417 | 124,552
Depreciation and amortization expense | 15,800 | 13,300
Management fee revenue | Management Operations |  |
Segment Reporting Information [Line Items] |  |
Total operating revenue | 772,694 | 682,620
Administrative services reimbursement revenue |  |
Segment Reporting Information [Line Items] |  |
Total operating revenue | 210,273 | 191,567
Total operating expenses | 210,273 | 191,567
Administrative services reimbursement revenue | Management Operations |  |
Segment Reporting Information [Line Items] |  |
Total operating revenue | 210,273 | 191,567
Total operating expenses | 210,273 | 191,567
Service agreement revenue |  |
Segment Reporting Information [Line Items] |  |
Total operating revenue | 6,432 | 6,514
Service agreement revenue | Management Operations |  |
Segment Reporting Information [Line Items] |  |
Total operating revenue | 6,432 | 6,514
Management fee revenue - policy issuance and renewal services |  |
Segment Reporting Information [Line Items] |  |
Total operating revenue | 755,049 | 665,686
Total operating expenses | 627,750 | 550,322
Management fee revenue - policy issuance and renewal services | Management Operations |  |
Segment Reporting Information [Line Items] |  |
Total operating expenses | $ 627,750 | $ 550,322

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