• Filing Date: 2018-03-07
  • Form Type: 10-K
  • Description: Annual report
v3.8.0.1
Investments - Rollforward of Cumulative Credit Losses in Other-Than-Temporary Impairments Recognized in Income for Available for Sale Fixed-Maturity Securities (Detail) - Available-for-Sale Securities [Member] - Fixed-Maturity Securities [Member] - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]      
Beginning Balance $ 475 $ 111  
Credit impairments on impaired securities 0 475 $ 111
Additional credit impairments on previously impaired securities 0 293  
Credit impaired security fully disposed of for which there was no prior intent or requirement to sell (475) (385)  
Reduction due to increase in expected cash flows recognized over the remaining life of the previously impaired security 0 (19)  
Ending Balance $ 0 $ 475 $ 111