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Acquisitions - Schedule of Pro forma (Details) - Boston National Title - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
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Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022
Business Acquisition [Line Items] |  |  |  |
Revenues | $ 296,108 | $ 286,512 | $ 856,595 | $ 880,321
Earnings | $ 178,139 | $ 172,799 | $ 514,823 | $ 675,684

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