Deferred Revenue and Performance Obligations (Tables)

9 Months Ended

Sep. 30, 2018

Revenue Recognition And Deferred Revenue [Abstract]

Summary of Deferred Revenue Balances

The opening and ending balances of the Company’s deferred revenue are as follows:

	Nine Months Ended September 30, 2018
	Subscription			Services			Total
Deferred revenue balance at December 31, 2017	$	110,934		$	8,367		$	119,301
Revenue recognized during the period		(144,287	)		(21,827	)		(166,114	)
Additions to deferred revenue during the period, including deferred revenue acquired		148,463			22,511			170,974
Deferred revenue balance at September 30, 2018	$	115,110		$	9,051		$	124,161