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Consolidated Balance Sheets (Parenthetical) - Successor [Member] - USD ($) $ in Thousands | Mar. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Fixed income securities, amortized cost | $ 5,303,723 | $ 5,435,385
Fixed income securities pledged as collateral, amortized cost | 64,889 | 64,833
Short-term investments, amortized cost | 347,152 | 430,827
Other Investments at Fair Value | 447,487 | 420,304
Other investments | $ 478,688 | $ 450,307
Preferred stock, par value | $ 0.01 | $ 0.01
Preferred stock, shares authorized | 20,000,000 | 20,000,000
Preferred stock, shares issued | 0 | 0
Preferred stock, shares outstanding | 0 | 0
Common stock, par value | $ 0.01 | $ 0.01
Common stock, shares authorized | 130,000,000 | 130,000,000
Common stock, shares issued | 45,275,982 | 45,194,954
Common stock, shares outstanding | 45,275,982 | 45,194,954
Treasury stock, shares | 47,037 | 22,458

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