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REVENUE RECOGNITION AND RECEIVABLES (Tables) | 6 Months Ended
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Jun. 30, 2020
REVENUE RECOGNITION AND RECEIVABLES |
Summary of contracts asset and liabilities | ​ Contract assets and liabilities consisted of the following (in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | June 30, 2020 | ​ | December 31, 2019 | ​ | ​ | $ Change | ​ | % Change
Contract asset – current | $ | 2,217 | ​ | $ | 2,413 | ​ | $ | (196) | ​ | (8) | %
Contract asset – noncurrent | ​ | 651 | ​ | ​ | 905 | ​ | ​ | (254) | ​ | (28) | %
Contract liability – current | ​ | (13,598) | ​ | ​ | (15,044) | ​ | ​ | 1,446 | ​ | 10 | %
Contract liability – noncurrent | ​ | (5,193) | ​ | ​ | (5,450) | ​ | ​ | 257 | ​ | 5 | %
Net contract liability | $ | (15,923) | ​ | $ | (17,176) | ​ | $ | 1,253 | ​ | 7 | %
Schedule of activity in allowances for credit losses | ​
​ | ​ | ​ | ​
​ |  | Six months ended June 30, 2020
​ | ​ | ​ | ​
Balance at January 1, 2020 |  | $ | 12,724
Current period provision for expected losses |  | ​ | 3,397
Write-offs charged against the allowance |  | ​ | (4,875)
Recoveries collected | ​ | ​ | 354
Balance at June 30, 2020 | ​ | $ | 11,600

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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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