CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands |
Dec. 31, 2019 |
Dec. 31, 2018 |
Dec. 31, 2017 |
|---|---|---|---|
| Statement of Financial Position [Abstract] | |||
| Fixed maturities, available-for-sale, amortized cost | $ 1,113,779 | $ 924,987 | |
| Restricted cash | $ 2,662 | $ 1,414 | |
| Common stock, par value (in dollars per share) | $ 0.01 | $ 0.01 | $ 0.01 |
| Common stock, issued (in shares) | 68,358,074 | 66,318,849 | |
| Common stock, outstanding (in shares) | 68,358,074 | 66,318,849 | |
| Common stock, authorized (in shares) | 250,000,000 | 250,000,000 |