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REVENUE RECOGNITION AND RECEIVABLES (Tables) | 9 Months Ended
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Sep. 30, 2020
REVENUE RECOGNITION AND RECEIVABLES |
Summary of contracts asset and liabilities | ​ Contract assets and liabilities consisted of the following (in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | September 30, 2020 | ​ | December 31, 2019 | ​ | ​ | $ Change | ​ | % Change
Contract asset – current | $ | 2,269 | ​ | $ | 2,413 | ​ | $ | (144) | ​ | (6) | %
Contract asset – noncurrent | ​ | 699 | ​ | ​ | 905 | ​ | ​ | (206) | ​ | (23) | %
Contract liability – current | ​ | (16,338) | ​ | ​ | (15,044) | ​ | ​ | (1,294) | ​ | (9) | %
Contract liability – noncurrent | ​ | (2,486) | ​ | ​ | (5,450) | ​ | ​ | 2,964 | ​ | 54 | %
Net contract liability | $ | (15,856) | ​ | $ | (17,176) | ​ | $ | 1,320 | ​ | 8 | %
Schedule of activity in allowances for credit losses | ​
​ | ​ | ​ | ​
​ |  | Nine months ended September 30, 2020
​ | ​ | ​ | ​
Balance at January 1, 2020 |  | $ | 12,724
Current period provision for expected losses |  | ​ | 4,452
Write-offs charged against the allowance |  | ​ | (5,434)
Recoveries collected | ​ | ​ | 466
Balance at September 30, 2020 | ​ | $ | 12,208

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- Definition Tabular disclosure of receivable, contract asset, and contract liability from contract with customer. Includes, but is not limited to, change in contract asset and contract liability. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130551-203045 + Details
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