XML 88 R73.htm IDEA: XBRL DOCUMENT v3.22.0.1
Investments (Schedule of Net Realized and Unrealized Gains (Losses) on Investments) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Gain (Loss) on Securities [Line Items]      
Net realized and unrealized gains (loss) on fixed maturity investments trading $ (309,788) $ 493,760 $ 260,443
Net realized and unrealized gains (losses) on equity investments trading 49,609 265,596 95,149
Net realized and unrealized gains (losses) on investments (218,134) 820,636 414,109
Fixed maturity investments      
Gain (Loss) on Securities [Line Items]      
Net realized gains (losses) on fixed maturity investments 79,588 276,901 90,260
Net unrealized gains (losses) on fixed maturity investments trading (389,376) 216,859 170,183
Investments-related derivatives      
Gain (Loss) on Securities [Line Items]      
Net realized and unrealized gains (losses) on investments-related derivatives (12,237) 68,608 58,891
Equity investments      
Gain (Loss) on Securities [Line Items]      
Net realized gains (losses) on equity investments trading sold during the period 335,491 3,532 31,062
Net unrealized gains (losses) on equity investments trading still held at reporting date (285,882) 262,064 64,087
Other Investments | Catastrophe bonds      
Gain (Loss) on Securities [Line Items]      
Net realized and unrealized gains (losses) (35,033) (7,031) (9,392)
Other Investments | Other      
Gain (Loss) on Securities [Line Items]      
Net realized and unrealized gains (losses) $ 89,315 $ (297) $ 9,018