XML 103 R70.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Investments (Net Realized Gains Losses on Disposal) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Schedule of Available-for-sale and Held-to-maturity Securities [Line Items]      
HTM fixed income securities gains $ 1 $ 2 $ 44
HTM fixed income securities losses (15) 0 (1)
Equity securities gains 24,980 23,203 5,829
Equity securities losses (136) (4,508) (1,200)
Short term investments gains 24 7 2
Short term investments losses (40) (10) (6)
Other investment securities gains 6 0 494
Other investment securities losses (29) (2,714) (859)
Net realized investment gains (losses) on disposals 26,715 (18,975) 11,204
Sale of fixed income securities, available-for-sale 594,743 2,030,664 1,197,920
Sale of equity securities 137,294 113,339 37,960
Fixed Income Securities [Member]      
Schedule of Available-for-sale and Held-to-maturity Securities [Line Items]      
AFS securities gains 6,899 5,460 10,193
AFS securities losses (4,975) (40,415) (3,292)
Equity Securities [Member]      
Schedule of Available-for-sale and Held-to-maturity Securities [Line Items]      
Net realized investment gains (losses) on disposals $ 24,844 $ 18,695 $ 4,629