XML 45 R34.htm IDEA: XBRL DOCUMENT
v3.21.2

Allowance For Credit Losses (Tables) | 9 Months Ended
--- | ---
Sep. 30, 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 (reductions) (1) | ​ |  | (213) | ​ |  | 2,387
Write-offs (2) | ​ | ​ | (1,846) | ​ | ​ | —
Adjustments (3) | ​ |  | — | ​ |  | 785
Balance at September 30, | ​ | $ | 1,410 | ​ | $ | 3,172
(1) | Additions (reductions) in allowance for credit losses reflect credit loss reserves (releases) during the respective periods, including a $1.7 million credit loss reserve in 2020 related to a receivable in our Robotics segment.
(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.

X
- Definition Tabular disclosure of allowance for credit loss on accounts receivable. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447 + Details
Name: | us-gaap_AccountsReceivableAllowanceForCreditLossTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_CreditLossAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration