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REVENUE RECOGNITION AND RECEIVABLES (Tables) | 3 Months Ended
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Mar. 31, 2020
REVENUE RECOGNITION AND RECEIVABLES |
Summary of contracts asset and liabilities | Contract assets and liabilities consisted of the following (in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | March 31, 2020 | ​ | December 31, 2019 | ​ | ​ | $ Change | ​ | % Change
Contract asset – current | $ | 2,375 | ​ | $ | 2,413 | ​ | $ | (38) | ​ | (2) | %
Contract asset – noncurrent | ​ | 816 | ​ | ​ | 905 | ​ | ​ | (89) | ​ | (10) | %
Contract liability – current | ​ | (19,371) | ​ | ​ | (15,044) | ​ | ​ | (4,327) | ​ | 29 | %
Contract liability – noncurrent | ​ | (5,193) | ​ | ​ | (5,450) | ​ | ​ | 257 | ​ | (5) | %
Net contract liability | $ | (21,373) | ​ | $ | (17,176) | ​ | $ | (4,197) | ​ | 24 | %
Schedule of activity in allowances for credit losses | ​
​ | ​ | ​ | ​
​ |  | Three months ended March 31, 2020
​ | ​ | ​ | ​
Balance at January 1, 2020 |  | $ | 12,724
Current period provision for expected losses |  | ​ | 1,260
Write-offs charged against the allowance |  | ​ | (1,525)
Recoveries collected | ​ | ​ | 208
Balance at March 31, 2020 | ​ | $ | 12,667

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- 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=119407570&loc=SL82919249-210447 + Details
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- Definition Tabular disclosure of contract balances and changes in contract balances. + 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=118956577&loc=SL49130551-203045 + Details
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