Balance Sheet Parenthetical (Parentheticals) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Fixed-maturities, Available-for-sale, Amortized Cost	$ 4,549,534	$ 4,098,962
Trading securities - at amortized cost	297,505	468,696
Equity securities available for sale—at cost	125,311	139,377
Reinvested Cash Collateral Held Under Securities Lending Agreements	$ 25,561	$ 11,699