XML 154 R42.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Summary of Operations and Basis of Presentation (Details)
$ / shares in Units, $ in Thousands
9 Months Ended 12 Months Ended
Apr. 22, 2019
USD ($)
$ / shares
shares
Mar. 15, 2019
Sep. 30, 2019
USD ($)
Dec. 31, 2018
state
Number states Company underwrites catastrophe insurance on an admitted basis | state       24
Forward stock split   17,000,000    
Proceeds from Issuance Initial Public Offering | $     $ 87,412  
Subsequent Event        
Forward stock split   17,000,000    
IPO        
Shares of common issued | shares 6,468,750      
Share price (in dollars per share) | $ / shares $ 15.00      
Proceeds from Issuance Initial Public Offering | $ $ 87,400      
Underwriter's option        
Shares of common issued | shares 843,750