• Filing Date: 2018-03-07
  • Form Type: 10-K
  • Description: Annual report
v3.8.0.1
Commitments and Contingencies - Summary of Contractual Obligations (Parenthetical) (Detail)
12 Months Ended
Dec. 31, 2017
Purchase Obligation, Fiscal Year Maturity [Abstract]  
Number of multi-year flood reinsurance contracts 1