Description of Business and Summary of Significant Accounting Policies (Accounts Receivables and Allowances) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable	$ 165,397		$ 165,397		$ 174,340
Allowance for doubtful accounts	21,000		21,000		6,969
Deferred revenue included in accounts receivables	4,400		4,400		$ 10,200
Provision for doubtful accounts	11,900	$ 524	10,580	$ 2,622
Billed Revenues [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable	165,400		165,400
Unbilled Revenues [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable	35,300		35,300
Vayam [Member] | Ebix Vayam JV [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for doubtful accounts	12,100		12,100
Accounts Receivable, Related Parties	$ 22,800		$ 22,800