Segment Information - Selected Financial Data by Business Segment (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Segment Reporting Information [Line Items]
Revenues	$ 87,620	$ 65,604	$ 243,357	$ 195,266
Income (loss) before income taxes	(4,524)	2,377	(3,030)	6,647
Total assets	403,516		403,516		$ 328,445
Insurance
Segment Reporting Information [Line Items]
Revenues	87,604	65,588	243,307	195,221
Income (loss) before income taxes	(3,156)	3,071	(166)	8,750
Total assets	376,117		376,117		302,529
Real estate and Corporate
Segment Reporting Information [Line Items]
Revenues	16	16	50	45
Income (loss) before income taxes	(1,368)	$ (694)	(2,864)	$ (2,103)
Total assets	$ 27,399		$ 27,399		$ 25,916