Description of Business and Summary of Significant Accounting Policies (Accounts Receivables and Allowances) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable	$ 175,323		$ 175,323		$ 174,340
Allowance for doubtful accounts	10,000		10,000		$ 6,969
Deferred revenue included in accounts receivables	7,300		7,300
Provision for doubtful accounts	(1,400)	$ 1,100	(1,310)	$ 2,098
Allowance for Doubtful Accounts Receivable, Recoveries			1,700
Allowance for Doubtful Accounts Receivable, Write-offs				$ 40
Billed Revenues [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable	148,400		148,400
Unbilled Revenues [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable	26,900		26,900
Vayam [Member] | Ebix Vayam JV [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts Receivable, Related Parties	$ 35,200		$ 35,200