Business Combinations - Schedule of Preliminary Allocation of the Purchase Price (Details) - USD ($) $ in Thousands	1 Months Ended
	Jan. 31, 2019	Mar. 31, 2019	Dec. 31, 2018
Allocation of the purchase consideration:
Goodwill		$ 1,586,990	$ 1,487,404
Janrain, Inc.
Business Acquisition [Line Items]
Total purchase consideration	$ 123,632
Allocation of the purchase consideration:
Cash	2,168
Accounts receivable	7,318
Prepaids and other current assets	838
Identifiable intangible assets	26,130
Goodwill	100,634
Deferred tax assets	5,124
Other assets	87
Total assets acquired	142,299
Accounts payable	(1,641)
Accrued liabilities	(2,690)
Deferred revenue	(14,336)
Total liabilities assumed	(18,667)
Net assets acquired	$ 123,632