Revenue (Tables)

6 Months Ended

Jun. 30, 2021

Revenue from Contract with Customer [Abstract]

Summary of opening and closing balances

The following table summarizes the opening and closing balances of our accounts receivable, net; contract assets, current; contract assets, non-current; deferred revenue, current; and deferred revenue, non-current (in thousands):

	Accounts receivable, net (1)		Contract assets, current		Contract assets, non-current		Deferred revenue, current		Deferred revenue, non-current
Beginning balances as of January 1, 2021	$	676,738	$	13,534	$	54,050	$	101,258	$	71,242
Closing balances as of June 30, 2021	726,382		33,614		53,137		104,568		68,992
Increase (Decrease)	$	49,644	$	20,080	$	(913)	$	3,310	$	(2,250)

(1) The net change in our allowance for credit losses was insignificant during the six months ended June 30, 2021.