XML 119 R105.htm IDEA: XBRL DOCUMENT v3.22.0.1
Quarterly Results for 2021 and 2020 (Unaudited) - Summary of Quarterly Results for the Periods Presented (Detail) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 12 Months Ended
Dec. 31, 2021
Sep. 30, 2021
Jun. 30, 2021
Mar. 31, 2021
Dec. 31, 2020
Sep. 30, 2020
Jun. 30, 2020
Mar. 31, 2020
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Quarterly Financial Information Disclosure [Abstract]                      
Premiums earned, net $ 271,332 $ 264,654 $ 256,172 $ 243,305 $ 242,173 $ 234,191 $ 226,370 $ 220,829 $ 1,035,463 $ 923,563 $ 842,502
Net investment income 3,894 2,797 2,858 2,986 2,823 4,557 6,179 6,834 12,535 20,393 30,743
Total revenues 292,659 287,254 279,181 262,757 273,126 311,665 252,704 235,275 1,121,851 1,072,770 939,351
Total expenses 357,120 260,790 249,122 226,406 300,125 315,457 225,266 207,691 1,093,438 1,048,539 875,834
Net income (loss) $ (48,125) $ 20,183 $ 21,941 $ 26,408 $ (17,675) $ (3,169) $ 19,882 $ 20,067 $ 20,407 $ 19,105 $ 46,514
Basic earnings per share (in dollars per share) $ (1.54) $ 0.65 $ 0.70 $ 0.85 $ (0.57) $ (0.10) $ 0.62 $ 0.62 $ 0.65 $ 0.60 $ 1.37
Diluted earnings per share (in dollars per share) $ (1.54) $ 0.64 $ 0.70 $ 0.84 $ (0.57) $ (0.10) $ 0.62 $ 0.61 $ 0.65 $ 0.60 $ 1.36