Description of Business and Summary of Significant Accounting Policies (Impact of adopting Topic 606 on the Company's Consolidated Financial Statements) (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
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification													$ (8,800)
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
Costs of services provided													168,415	129,494	85,128
Operating Expenses													344,847	250,750	198,013
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
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest													125,582	103,360	95,931
Income Tax Expense (Benefit)													32,501	777	1,637
Net income including noncontrolling interest													93,081	102,583	94,294
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 earnings per common share (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 earnings per common share (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
Other current assets	$ 59,274				$ 33,532								$ 59,274	$ 33,532
Assets, Current	427,380				252,932								427,380	252,932
Deferred tax asset, net	54,629				43,529								54,629	43,529
Deferred Tax Assets, Net of Valuation Allowance	73,462				63,291								73,462	63,291
Other assets	26,714				11,720								26,714	11,720
Assets	1,610,947				1,113,013								1,610,947	1,113,013
Deferred revenue	35,609				22,562								35,609	22,562
Liabilities, Current	317,428				146,932								317,428	146,932
Deferred revenue	9,051				1,423								9,051	1,423
Liabilities	1,066,510				579,254								1,066,510	579,254
Retained earnings	535,118				510,975								535,118	510,975
Other assets													(8,486)	(2,133)	$ 1,789
Deferred revenue													(8,740)	(4,480)	2,176
Net cash provided by operating activities													89,869	76,807	$ 86,571
Accounting Standards Update 2014-09 Adjustments
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating revenue													(538)
Costs of services provided													(134)
Operating Expenses													(134)
Operating income													(404)
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest													(404)
Income Tax Expense (Benefit)													(99)
Net income including noncontrolling interest													(305)
Net income attributable to Ebix, Inc.													$ (305)
Basic earnings per common share (in dollars per share)													$ (0.01)
Diluted earnings per common share (in dollars per share)													$ (0.01)
Other current assets	(862)				898								$ (862)	898
Assets, Current	(862)				898								(862)	898
Deferred tax asset, net					2,843									2,843
Deferred Tax Assets, Net of Valuation Allowance	(1,811)												(1,811)
Other assets	(1,376)				1,502								(1,376)	1,502
Assets	(4,049)				5,243								(4,049)	5,243
Deferred revenue	(4,792)				5,124								(4,792)	5,124
Liabilities, Current	(4,792)				5,124								(4,792)	5,124
Deferred revenue	(7,530)				8,921								(7,530)	8,921
Liabilities	(12,322)				14,045								(12,322)	14,045
Retained earnings	8,273				$ (8,802)								8,273	$ (8,802)
Other assets													(134)
Deferred revenue													1,723
Net cash provided by operating activities													1,284
Balances without Adoption of ASC 606
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating revenue													497,288
Costs of services provided													168,281
Operating Expenses													344,713
Operating income													152,575
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest													125,178
Income Tax Expense (Benefit)													32,402
Net income including noncontrolling interest													92,776
Net income attributable to Ebix, Inc.													$ 92,834
Basic earnings per common share (in dollars per share)													$ 2.96
Diluted earnings per common share (in dollars per share)													$ 2.94
Other current assets	58,412												$ 58,412
Assets, Current	426,518												426,518
Deferred Tax Assets, Net of Valuation Allowance	52,818												52,818
Other assets	25,338												25,338
Assets	1,606,898												1,606,898
Deferred revenue	30,817												30,817
Liabilities, Current	312,636												312,636
Deferred revenue	1,521												1,521
Liabilities	1,054,188												1,054,188
Retained earnings	$ 543,391												543,391
Other assets													(8,620)
Deferred revenue													(7,017)
Net cash provided by operating activities													$ 91,153