Allowance For Credit Losses (Tables)

3 Months Ended

Mar. 31, 2021

Credit Loss [Abstract]

Schedule of activities in allowance for credit losses

The following table sets forth the activity in our allowance for credit losses (in thousands):

	2021		2020
Balance at January 1,	$	3,469	$	—
Additions (1)		7		586
Write-offs (2)		(1,811)		—
Adjustments (3)		—		785
Balance at March 31,	$	1,665	$	1,371

(1) The additions in allowance for credit losses reflect credit loss reserves during the respective periods.

(2) The write-offs of allowance for credit losses reflect certain receivables related to our Robotics segment that were previously reserved and subsequently deemed to be uncollectible.

(3) The adjustment in allowance for credit losses reflects provision for current expected credit losses upon the adoption of ASU No. 2016-13 on January 1, 2020.