Expected gain on sales of real estate

  
business segments.Net premiums earned by major line of business were as follows:

|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| (In thousands) |  | 2021 |  | 2020 |  | 2019 |
| Insurance |  |   |  |   |  |   |
| Other liability |  | $ | 2,639,601  |  |  | $ | 2,237,285  |  |  | $ | 2,063,401  |  |
| Short-tail lines |  | 1,389,068  |  |  | 1,247,908  |  |  | 1,223,902  |  |
| Workers' compensation |  | 1,131,283  |  |  | 1,127,487  |  |  | 1,301,980  |  |
| Commercial automobile |  | 990,945  |  |  | 794,171  |  |  | 750,051  |  |
| Professional liability |  | 926,811  |  |  | 660,818  |  |  | 580,485  |  |
| Total Insurance |  | 7,077,708  |  |  | 6,067,669  |  |  | 5,919,819  |  |
| Reinsurance & Monoline Excess |  |  |  |  |  |  |
| Casualty |  | 643,193  |  |  | 521,559  |  |  | 405,063  |  |
| Monoline Excess |  | 201,187  |  |  | 171,522  |  |  | 160,071  |  |
| Property |  | 183,943  |  |  | 170,093  |  |  | 148,335  |  |
| Total Reinsurance & Monoline Excess |  | 1,028,323  |  |  | 863,174  |  |  | 713,469  |  |
| Total |  | $ | 8,106,031  |  |  | $ | 6,930,843  |  |  | $ | 6,633,288  |  |

  
  
  
(26)    Subsequent EventOn February 23, 2022, the Company announced that it has entered into an agreement for the sale of a real estate investment consisting of an office building located at 52 Lime Street, London, U.K. (known as “The Scalpel”) for £718 million, subject to agreed upon adjustments. The transaction is scheduled to close on March 7, 2022. The Company estimates that it will realize a pretax gain of more than $300 million in the first quarter of 2022, subject to adjustment for final transaction expenses and certain items, including the impact of the foreign exchange rate at the date of the close.112
