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Schedule IV - Reinsurance | 12 Months Ended
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Dec. 31, 2022
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Abstract] |
Reinsurance | SCHEDULE IV ARCH CAPITAL GROUP LTD. AND SUBSIDIARIES REINSURANCE (U.S. dollars in thousands)
| Gross Amount |  | Ceded to Other Companies (1) |  | Assumed From Other Companies (1) |  | Net Amount |  | Percentage of Amount Assumed to Net
Year Ended December 31, 2022 |  |  |  |  |  |  |  |  |
Premiums Written: |  |  |  |  |  |  |  |  |
Insurance | $ | 6,889,358 |  |  | $ | (1,910,222) |  |  | $ | 41,506 |  |  | $ | 5,020,642 |  |  | 0.8 | %
Reinsurance | 395,063 |  |  | (2,024,462) |  |  | 6,553,375 |  |  | 4,923,976 |  |  | 133.1 | %
Mortgage | 1,256,366 |  |  | (322,400) |  |  | 198,605 |  |  | 1,132,571 |  |  | 17.5 | %
Total | $ | 8,540,787 |  |  | $ | (4,249,258) |  |  | $ | 6,785,660 |  |  | $ | 11,077,189 |  |  | 61.3 | %
Year Ended December 31, 2021 |  |  |  |  |  |  |  |  |
Premiums Written: |  |  |  |  |  |  |  |  |
Insurance | $ | 5,833,873 |  |  | $ | (1,719,541) |  |  | $ | 33,861 |  |  | $ | 4,148,193 |  |  | 0.8 | %
Reinsurance | 408,520 |  |  | (1,839,556) |  |  | 4,685,410 |  |  | 3,254,374 |  |  | 144.0 | %
Mortgage | 1,213,333 |  |  | (246,757) |  |  | 294,492 |  |  | 1,261,068 |  |  | 23.4 | %
Other | 251,106 |  |  | (102,763) |  |  | 206,359 |  |  | 354,702 |  |  | 58.2 | %
Total | $ | 7,706,832 |  |  | $ | (3,734,150) |  |  | $ | 5,045,655 |  |  | $ | 9,018,337 |  |  | 55.9 | %
Year Ended December 31, 2020 |  |  |  |  |  |  |  |  |
Premiums Written: |  |  |  |  |  |  |  |  |
Insurance | $ | 4,659,416 |  |  | $ | (1,525,655) |  |  | $ | 29,146 |  |  | $ | 3,162,907 |  |  | 0.9 | %
Reinsurance | 305,435 |  |  | (1,014,716) |  |  | 3,166,651 |  |  | 2,457,370 |  |  | 128.9 | %
Mortgage | 1,192,316 |  |  | (194,149) |  |  | 281,683 |  |  | 1,279,850 |  |  | 22.0 | %
Other | 396,743 |  |  | (190,957) |  |  | 331,803 |  |  | 537,589 |  |  | 61.7 | %
Total | $ | 6,553,910 |  |  | $ | (2,650,352) |  |  | $ | 3,534,158 |  |  | $ | 7,437,716 |  |  | 47.5 | %
(1) Certain amounts included in the gross premiums written of each segment are related to intersegment transactions and are included in the gross premiums written of each segment. Accordingly, the sum of gross premiums written for each segment does not agree to the total gross premiums written as shown in the table above due to the elimination of intersegment transactions in the total.

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- Definition The entire disclosure for the supplemental schedule of reinsurance information. Reinsurance schedule includes, but is not limited to, the type of insurance, gross amount of premiums, premiums ceded to other entities, premiums assumed from other entities, net amount of premium revenue, and the percentage of the premiums assumed to net premium revenue. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 12 -Subsection 17 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 235 -Section S99 -Paragraph 2 -Subparagraph (SX 210.12-17) -URI https://asc.fasb.org/extlink&oid=120401096&loc=d3e574992-122915 + Details
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