Note 17. Quarterly Data (unaudited): Schedule of Quarterly Financial Information (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Details
TOTAL REVENUES	$ 143,618	$ 141,644	$ 151,900	$ 137,882	$ 112,960	$ 111,502	$ 101,443	$ 102,156	$ 575,044	$ 428,061	$ 417,996
Net income (loss)	2,142	3,916	4,158	5,040	10,061	4,390	3,830	4,330	15,256	22,611	14,766
(Income) loss from noncontrolling interests in subsidiaries	(394)	(277)	(467)	(339)	(1,771)	(472)	(299)	(408)	(1,477)	(2,950)	(1,763)
NET INCOME (LOSS) ATTRIBUTABLE TO IHC	$ 1,748	$ 3,639	$ 3,691	$ 4,701	$ 8,290	$ 3,918	$ 3,531	$ 3,922
Basic income (loss) per common share	$ 0.10	$ 0.21	$ 0.21	$ 0.26	$ 0.46	$ 0.22	$ 0.20	$ 0.22	$ 0.78	$ 1.09	$ 0.74
Diluted income (loss) per common share	$ 0.10	$ 0.21	$ 0.21	$ 0.26	$ 0.46	$ 0.22	$ 0.20	$ 0.22	$ 0.77	$ 1.09	$ 0.74