Accounts receivable (Tables)

6 Months Ended

Jun. 30, 2021

Receivables [Abstract]

Summary of accounts receivable allowance for credit losses

The following sets forth activities in our allowance for credit losses (in thousands):

	Total
Balance as of January 1, 2021	$	1,118
Charges to provision for credit losses		445
Write-off of uncollectible receivables		(290	)
Balance as of June 30, 2021	$	1,273