Deferred Revenue and Performance Obligations (Tables)

6 Months Ended

Jun. 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:

	Six Months Ended June 30, 2018
	Subscription			Services			Total
Deferred revenue balance at December 31, 2017	$	110,934		$	8,367		$	119,301
Revenue recognized during the period		(94,677	)		(15,824	)		(110,501	)
Additions to deferred revenue during the period, including deferred revenue acquired		98,095			17,473			115,568
Deferred revenue balance at June 30, 2018	$	114,352		$	10,016		$	124,368