Quarterly Financial Information (unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended												12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Quarterly Financial Information Disclosure [Abstract]
Operating revenue	$ 136,327	$ 128,643	$ 124,626	$ 108,230	$ 104,681	$ 92,800	$ 87,387	$ 79,103	$ 80,046	$ 74,608	$ 72,574	$ 71,066	$ 497,826	$ 363,971	$ 298,294
Gross Profit	94,025	85,680	81,067	68,639	66,243	57,863	56,455	53,916	57,524	52,183	51,995	51,464
Operating income	41,530	39,238	38,315	33,896	33,081	27,911	26,539	25,690	27,661	24,293	23,564	24,763	152,979	113,221	100,281
Net income attributable to Ebix, Inc.	$ 8,509	$ 29,242	$ 29,180	$ 26,208	$ 26,573	$ 24,184	$ 23,434	$ 26,427	$ 24,629	$ 24,067	$ 22,992	$ 22,159	$ 93,139	$ 100,618	$ 93,847
Basic (in dollars per share)	$ 0.27	$ 0.93	$ 0.93	$ 0.83	$ 0.84	$ 0.77	$ 0.74	$ 0.83	$ 0.76	$ 0.74	$ 0.70	$ 0.67	$ 2.97	$ 3.19	$ 2.88
Diluted (in dollars per share)	$ 0.27	$ 0.92	$ 0.92	$ 0.83	$ 0.84	$ 0.76	$ 0.74	$ 0.83	$ 0.76	$ 0.74	$ 0.70	$ 0.67	$ 2.95	$ 3.17	$ 2.86