| Three months ended December 31, | Twelve months ended December 31, | |||||||||||||||||||||||||
| 2025 | 2024 | 2025 | 2024 | |||||||||||||||||||||||
| (Unaudited) | ||||||||||||||||||||||||||
| Operating revenue | ||||||||||||||||||||||||||
| Management fee revenue - policy issuance and renewal services | $ | 727,629 | $ | 698,340 | $ | 3,131,806 | $ | 2,894,074 | ||||||||||||||||||
| Management fee revenue - administrative services | 19,286 | 17,216 | 74,058 | 68,355 | ||||||||||||||||||||||
| Administrative services reimbursement revenue | 198,028 | 201,987 | 836,639 | 806,336 | ||||||||||||||||||||||
| Service agreement revenue | 6,080 | 6,547 | 24,755 | 26,350 | ||||||||||||||||||||||
| Total operating revenue | 951,023 | 924,090 | 4,067,258 | 3,795,115 | ||||||||||||||||||||||
| Operating expenses | ||||||||||||||||||||||||||
| Cost of operations - policy issuance and renewal services | 595,281 | 554,793 | 2,513,435 | 2,312,324 | ||||||||||||||||||||||
| Cost of operations - administrative services | 198,028 | 201,987 | 836,639 | 806,336 | ||||||||||||||||||||||
| Total operating expenses | 793,309 | 756,780 | 3,350,074 | 3,118,660 | ||||||||||||||||||||||
Operating income | 157,714 | 167,310 | 717,184 | 676,455 | ||||||||||||||||||||||
| Investment income | ||||||||||||||||||||||||||
| Net investment income | 24,826 | 20,920 | 85,837 | 70,155 | ||||||||||||||||||||||
| Net realized and unrealized investment gains | 24 | 246 | 2,336 | 3,229 | ||||||||||||||||||||||
| Net impairment losses recognized in earnings | (679) | (361) | (3,312) | (4,124) | ||||||||||||||||||||||
Total investment income | 24,171 | 20,805 | 84,861 | 69,260 | ||||||||||||||||||||||
| Other income | 464 | 3,693 | 8,558 | 11,564 | ||||||||||||||||||||||
| Contribution to charitable foundation | (100,000) | — | (100,000) | — | ||||||||||||||||||||||
| Income before income taxes | 82,349 | 191,808 | 710,603 | 757,279 | ||||||||||||||||||||||
| Income tax expense | 18,969 | 39,779 | 151,268 | 156,965 | ||||||||||||||||||||||
Net income | $ | 63,380 | $ | 152,029 | $ | 559,335 | $ | 600,314 | ||||||||||||||||||
| Net income per share | ||||||||||||||||||||||||||
| Class A common stock – basic | $ | 1.36 | $ | 3.26 | $ | 12.01 | $ | 12.89 | ||||||||||||||||||
| Class A common stock – diluted | $ | 1.21 | $ | 2.91 | $ | 10.69 | $ | 11.48 | ||||||||||||||||||
Class B common stock – basic | $ | 204 | $ | 490 | $ | 1,802 | $ | 1,934 | ||||||||||||||||||
| Class B common stock – diluted | $ | 204 | $ | 490 | $ | 1,801 | $ | 1,933 | ||||||||||||||||||
| Weighted average shares outstanding – Basic | ||||||||||||||||||||||||||
| Class A common stock | 46,189,058 | 46,189,060 | 46,189,024 | 46,189,044 | ||||||||||||||||||||||
| Class B common stock | 2,542 | 2,542 | 2,542 | 2,542 | ||||||||||||||||||||||
| Weighted average shares outstanding – Diluted | ||||||||||||||||||||||||||
| Class A common stock | 52,307,301 | 52,310,894 | 52,305,424 | 52,306,266 | ||||||||||||||||||||||
| Class B common stock | 2,542 | 2,542 | 2,542 | 2,542 | ||||||||||||||||||||||
| Dividends declared per share | ||||||||||||||||||||||||||
| Class A common stock | $ | 1.4625 | $ | 1.365 | $ | 5.5575 | $ | 5.19 | ||||||||||||||||||
| Class B common stock | $ | 219.375 | $ | 204.75 | $ | 833.625 | $ | 778.50 | ||||||||||||||||||
| December 31, 2025 | December 31, 2024 | |||||||||||||
| Assets | ||||||||||||||
| Current assets: | ||||||||||||||
Cash and cash equivalents (includes restricted cash of $30,189 and $23,559, respectively) | $ | 345,874 | $ | 298,397 | ||||||||||
| Available-for-sale securities | 33,902 | 44,604 | ||||||||||||
| Available-for-sale securities lent | 3,436 | 0 | ||||||||||||
| Receivables from Erie Insurance Exchange and affiliates, net | 735,589 | 707,060 | ||||||||||||
| Prepaid expenses and other current assets, net | 66,061 | 83,902 | ||||||||||||
| Accrued investment income | 14,311 | 11,069 | ||||||||||||
| Total current assets | 1,199,173 | 1,145,032 | ||||||||||||
| Available-for-sale securities, net | 1,286,566 | 991,726 | ||||||||||||
| Equity securities | 70,624 | 85,891 | ||||||||||||
| Available-for-sale and equity securities lent | 61,063 | 7,285 | ||||||||||||
| Fixed assets, net | 571,476 | 513,494 | ||||||||||||
| Agent loans, net | 93,953 | 80,597 | ||||||||||||
| Defined benefit pension plan | 24,137 | 21,311 | ||||||||||||
| Other assets, net | 48,489 | 43,278 | ||||||||||||
| Total assets | $ | 3,355,481 | $ | 2,888,614 | ||||||||||
| Liabilities and shareholders' equity | ||||||||||||||
| Current liabilities: | ||||||||||||||
| Commissions payable | $ | 425,320 | $ | 408,309 | ||||||||||
| Agent incentive compensation | 132,560 | 75,458 | ||||||||||||
| Accounts payable and accrued liabilities | 200,701 | 190,028 | ||||||||||||
| Dividends payable | 68,109 | 63,569 | ||||||||||||
| Contract liability | 47,561 | 42,761 | ||||||||||||
| Deferred executive compensation | 9,400 | 14,874 | ||||||||||||
| Securities lending payable | 61,936 | 7,513 | ||||||||||||
| Total current liabilities | 945,587 | 802,512 | ||||||||||||
| Defined benefit pension plan | 33,410 | 28,070 | ||||||||||||
| Contract liability | 23,274 | 21,170 | ||||||||||||
| Deferred executive compensation | 22,050 | 19,721 | ||||||||||||
| Deferred income taxes, net | 24,788 | 6,418 | ||||||||||||
| Other long-term liabilities | 22,998 | 23,465 | ||||||||||||
| Total liabilities | 1,072,107 | 901,356 | ||||||||||||
| Shareholders' equity | 2,283,374 | 1,987,258 | ||||||||||||
| Total liabilities and shareholders' equity | $ | 3,355,481 | $ | 2,888,614 | ||||||||||