Investment in Joint Ventures (Details) - USD ($) $ in Thousands						3 Months Ended		12 Months Ended
	Jan. 02, 2018	Apr. 01, 2017	Jul. 02, 2016	Feb. 08, 2016	Sep. 02, 2015	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017	Dec. 31, 2016	Jul. 01, 2016	Feb. 07, 2016	Sep. 01, 2015
Schedule of Equity Method Investments [Line Items]
Fair Value of Joint Venture, excluding Noncontrolling Interest		$ 120,000
Fair Value of Joint Venture, including Noncontrolling Interest		$ 150,000
Non-operating income, gain on joint venture investment (see Note 8)						$ 53	$ 0	$ 1,162
Derivative Liability						36,511		$ 37,096	$ 8,510
Proceeds from Noncontrolling Interests						4,996	0
PML JV [Member]
Schedule of Equity Method Investments [Line Items]
Percentage of Membership Interest in Joint Venture by Other Party	10.00%
Proceeds from Noncontrolling Interests	$ 5,000
Percentage of Equity Interest in Joint Venture by Other Party, Irrevocable option to reacquire	10.00%
ItzCash [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Ownership Percentage		80.00%
Ebix Vayam JV [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Ownership Percentage											51.00%
Percentage of Membership Interest in Joint Venture by Other Party				49.00%
EbixHealth JV [Member]
Schedule of Equity Method Investments [Line Items]
Payments to Acquire Interest in Joint Venture			$ 2,000		$ 6,000
Equity Method Investment, Ownership Percentage										51.00%		40.00%
Contribution to Joint Venture by Other Party, Value					$ 12,000
Percentage of Membership Interest in Joint Venture by Other Party			49.00%		60.00%
Equity Method Investment, Ownership Percentage Increase (Decrease)			11.00%
Non-cash Payments To Acquire Interest In Joint Venture					$ 2,000
IHC [Member]
Schedule of Equity Method Investments [Line Items]
Revenue from Related Parties						0	97
Accounts Receivable, Related Parties						23
IHC [Member] | EbixHealth JV [Member]
Schedule of Equity Method Investments [Line Items]
Revenue from Related Parties						2,300	$ 2,600
Accounts Receivable, Related Parties						1,000
ItzCash [Member]
Schedule of Equity Method Investments [Line Items]
Payments to Acquire Businesses, Gross		$ 76,300
Derivative Liability						$ 33,960
Derivative, Term of Contract		36 months
Payments to Acquire Business, Held in Escrow		$ 4,000
Escrow Derivative, Term of Contract		12 months
Maximum [Member] | ItzCash [Member]
Schedule of Equity Method Investments [Line Items]
Derivative Liability		$ 44,000