Arch Capital Group Ltd. (ACGL) provides insurance, reinsurance and mortgage insurance through its wholly owned subsidiaries. The Company provides a range of property, casualty and mortgage insurance and reinsurance lines. The Company’s segments include insurance, reinsurance, mortgage, other and corporate. The insurance segment's product lines include construction and national accounts; excess and surplus casualty; lenders products; professional lines; programs; property, energy, marine and aviation; travel, accident and health, and other. The reinsurance segment's product lines include casualty; marine and aviation; other specialty; property catastrophe; property excluding property catastrophe, and other. The mortgage segment includes United States and international mortgage insurance and reinsurance operations as well as government sponsored enterprise (GSE) credit-risk sharing transactions. The other segment includes the results of Watford Holdings Ltd. (Watford Re).