Regulatory Matters (Details 2) (Texas Department of Insurance, USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
NLIC
Insurance
Capital and surplus	$ 117,614		$ 113,023
Statutory net income	4,759	5,986
ASIC
Insurance
Capital and surplus	29,983		28,964
Statutory net income	$ 909	$ 1,131