Reserves for Insurance Claims and Claim Expenses - Reconciliation of Reserve Balances for Insurance Claims Expense (Details) - USD ($) $ in Thousands |
6 Months Ended | |
|---|---|---|
Jun. 30, 2018 |
Jun. 30, 2017 |
|
| Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward] | ||
| Beginning balance | $ 8,761 | $ 3,001 |
| Less reinsurance recoverables | 1,902 | 297 |
| Beginning balance, net of reinsurance recoverables | 6,859 | 2,704 |
| Claims incurred: | ||
| Current year | 3,152 | 2,331 |
| Prior years | (940) | (323) |
| Total claims and claims expenses incurred | 2,212 | 2,008 |
| Claims and claim expenses paid: | ||
| Current year | 0 | 0 |
| Prior years | 852 | 563 |
| Total claims and claim expenses paid | 852 | 563 |
| Ending balance, net of reinsurance recoverables | 8,219 | 4,149 |
| Add reinsurance recoverables | 2,382 | 899 |
| Ending balance | $ 10,601 | $ 5,048 |