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v3.25.3

Segment Information - Schedule of Segment Reporting Information, by Segment (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Jun. 30, 2025 | Mar. 31, 2025 | Sep. 30, 2024 | Jun. 30, 2024 | Mar. 31, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |
Total operating revenue | $ 1,066,739 |  |  | $ 999,886 |  |  | $ 3,116,235 | $ 2,871,025
Total operating expenses | 857,818 |  |  | 819,761 |  |  | 2,556,765 | 2,361,880
Operating income | 208,921 |  |  | 180,125 |  |  | 559,470 | 509,145
Total investment income | 21,554 |  |  | 19,549 |  |  | 60,690 | 48,455
Other income | 2,286 |  |  | 1,168 |  |  | 8,094 | 7,871
Income tax expense | 49,908 |  |  | 41,012 |  |  | 132,299 | 117,186
Net income | 182,853 | $ 174,685 | $ 138,417 | 159,830 | $ 163,903 | $ 124,552 | $ 495,955 | $ 448,285
Erie Insurance Exchange |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |
Depreciation and amortization expense reimbursed from the Exchange and its insurance subsidiaries (as a percent) |  |  |  |  |  |  | 30.00% | 28.00%
Management Operations |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |
Total operating revenue | 1,066,739 |  |  | 999,886 |  |  | $ 3,116,235 | $ 2,871,025
Commissions | 461,513 |  |  | 420,516 |  |  | 1,361,815 | 1,216,227
Underwriting and policy processing | 53,097 |  |  | 51,449 |  |  | 156,264 | 150,350
Information technology | 56,294 |  |  | 54,825 |  |  | 178,748 | 158,914
Sales and advertising | 14,342 |  |  | 18,725 |  |  | 51,498 | 52,886
Customer service | 12,176 |  |  | 11,300 |  |  | 35,253 | 31,726
Administrative and other | 44,702 |  |  | 56,192 |  |  | 134,576 | 147,428
Total operating expenses | 857,818 |  |  | 819,761 |  |  | 2,556,765 | 2,361,880
Operating income | 208,921 |  |  | 180,125 |  |  | 559,470 | 509,145
Total investment income | 21,554 |  |  | 19,549 |  |  | 60,690 | 48,455
Other income | 2,286 |  |  | 1,168 |  |  | 8,094 | 7,871
Income tax expense | 49,908 |  |  | 41,012 |  |  | 132,299 | 117,186
Net income | 182,853 |  |  | 159,830 |  |  | 495,955 | 448,285
Depreciation and amortization expense | 18,400 |  |  | 14,400 |  |  | 50,300 | 41,500
Management fee revenue | Management Operations |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |
Total operating revenue | 844,106 |  |  | 786,316 |  |  | 2,458,949 | 2,246,873
Administrative services reimbursement revenue |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |
Total operating revenue | 215,694 |  |  | 206,754 |  |  | 638,611 | 604,349
Total operating expenses | 215,694 |  |  | 206,754 |  |  | 638,611 | 604,349
Administrative services reimbursement revenue | Management Operations |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |
Total operating revenue | 215,694 |  |  | 206,754 |  |  | 638,611 | 604,349
Total operating expenses | 215,694 |  |  | 206,754 |  |  | 638,611 | 604,349
Service agreement revenue |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |
Total operating revenue | 6,939 |  |  | 6,816 |  |  | 18,675 | 19,803
Service agreement revenue | Management Operations |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |
Total operating revenue | 6,939 |  |  | 6,816 |  |  | 18,675 | 19,803
Cost of operations - policy issuance and renewal services |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |
Total operating revenue | 825,275 |  |  | 769,162 |  |  | 2,404,177 | 2,195,734
Total operating expenses | 642,124 |  |  | 613,007 |  |  | 1,918,154 | 1,757,531
Cost of operations - policy issuance and renewal services | Management Operations |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |
Total operating expenses | $ 642,124 |  |  | $ 613,007 |  |  | $ 1,918,154 | $ 1,757,531

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