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Schedule VI - Supplementary Information For Property and Casualty Insurance Underwriters | 12 Months Ended
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Dec. 31, 2020
SEC Schedule, 12-18, Supplemental Information, Property-Casualty Insurance Underwriters [Abstract] |
Supplementary Information for Property and Casualty Insurance Underwriters | SCHEDULE VI ARCH CAPITAL GROUP LTD. AND SUBSIDIARIES SUPPLEMENTARY INFORMATION FOR PROPERTY AND CASUALTY INSURANCE UNDERWRITERS (U.S. dollars in thousands)
Column A | Column B | Column C | Column D | Column E | Column F | Column G | Column H | Column I | Column J | Column K
Affiliation with Registrant | Deferred Acquisition Costs | Reserves for Losses and Loss Adjustment Expenses | Discount, if any, deducted in Column C | Unearned Premiums | Net Premiums Earned | Net Investment Income | Net Losses and Loss Adjustment Expenses Incurred Related to | Amortization of Deferred Acquisition Costs | Net Paid Losses and Loss Adjustment Expenses | Net Premiums Written
(a) Current Year | (b) Prior Years
Consolidated Subsidiaries |  |  |  |  |  |  |  |  |  |  |
2020 | $ | 790,708 |  | $ | 16,513,929 |  | $ | 23,326 |  | $ | 4,838,965 |  | $ | 6,991,935 |  | $ | 519,608 |  | $ | 4,851,051 |  | $ | (161,452) |  | $ | 1,004,842 |  | $ | 2,661,117 |  | $ | 7,437,716 |
2019 | 633,400 |  | 13,891,842 |  | 22,012 |  | 4,339,549 |  | 5,786,498 |  | 627,738 |  | 3,297,037 |  | (163,585) |  | 840,945 |  | 2,383,255 |  | 6,039,067 |
2018 | 569,574 |  | 11,853,297 |  | 21,145 |  | 3,753,636 |  | 5,231,975 |  | 563,633 |  | 3,162,818 |  | (272,712) |  | 805,135 |  | 2,206,164 |  | 5,346,747 |

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- Definition The entire disclosure of supplemental information for registrant, its subsidiary and 50%-or-less-owned equity basis investee, with liability for property-casualty insurance claim. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 12 -Subsection 18 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 235 -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-18) -URI http://asc.fasb.org/extlink&oid=120401096&loc=d3e575016-122915 + Details
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