Earnings per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Earnings per Share [Abstract]
Net income attributable to Federated National Holding Company common stockholders	$ 10,593	$ 7,227	$ 31,611	$ 27,204
Weighted average number of common shares outstanding - basic (in shares)	13,749,394	12,624,746	13,709,605	11,562,709
Net income per share - basic (in dollars per share)	$ 0.77	$ 0.57	$ 2.31	$ 2.35
Dilutive effect of stock compensation plans (in shares)	228,000	332,000	268,000	371,000
Weighted average number of common shares outstanding - diluted (in shares)	13,976,709	12,956,407	13,978,381	11,934,057
Net income per share - diluted (in dollars per share)	$ 0.76	$ 0.56	$ 2.26	$ 2.28