Segment Information - Selected Financial Data by Business Segment (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013
Selected financial data by business segment
Revenues	$ 67,120	$ 62,493	$ 129,662	$ 121,782
Income (loss) before income taxes	3,723	2,254	4,270	4,371
Total assets	296,139		296,139		273,707
Insurance [Member]
Selected financial data by business segment
Revenues	67,105	62,481	129,632	121,759
Income (loss) before income taxes	4,441	2,949	5,679	5,811
Total assets	282,419		282,419		262,869
Real Estate and Corporate [Member]
Selected financial data by business segment
Revenues	15	12	30	23
Income (loss) before income taxes	(718)	(695)	(1,409)	(1,440)
Total assets	$ 13,720		$ 13,720		$ 10,838