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v3.21.1

Statutory Requirements (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2020 USD ($) member | Dec. 31, 2019 USD ($) | Dec. 31, 2018 USD ($)
Statutory Accounting Practices [Line Items] |  |  |
Liquidity ratio, minimum percentage required | 75.00% |  |
Bermuda |  |  |
Statutory Accounting Practices [Line Items] |  |  |
Actual statutory capital and surplus | $ 1,211,102 | $ 1,298,596 |
Required statutory capital and surplus | 610,173 | 555,714 |
Statutory net income | $ 139,646 | 214,227 | $ (272,339)
Statutory maximum percentage available for dividend payments | 25.00% |  |
Dividend payments with regulatory approval, number of members required | member | 2 |  |
Statutory amount available for dividend payments without regulatory approval | $ 316,700 | 314,500 |
United States |  |  |
Statutory Accounting Practices [Line Items] |  |  |
Actual statutory capital and surplus | 296,938 | 276,185 |
Required statutory capital and surplus | 115,086 | 112,601 |
Statutory net income | $ 36,659 | 9,016 | $ (29,491)
Statutory maximum percentage available for dividend payments | 25.00% |  |
Dividend payments with regulatory approval, number of members required | member | 2 |  |
Statutory amount available for dividend payments without regulatory approval | $ 47,400 | $ 21,600 |
Net Worth Maintenance Agreement, Minimum Level of Capital | $ 250,000 |  |

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- Definition Minimum amount of net capital required to be maintained by broker-dealer parent, calculated under Aggregate Indebtedness Standard. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher SEC -Name Rule 15c3-1 -Number 240 -Section 15c3-1 + Details
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- Definition Amount of dividends that can be declared or paid without approval of regulatory agency. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(e)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 + Details
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- Definition The amount of statutory capital and surplus (stockholders' equity) as of the balance sheet date using prescribed or permitted statutory accounting practices (rather than GAAP, if different) of the state or country. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(23)(c)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6486098&loc=d3e24708-158529 + Details
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