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REVENUE RECOGNITION AND RECEIVABLES (Tables) | 6 Months Ended
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Jun. 30, 2022
REVENUE RECOGNITION AND RECEIVABLES |
Summary of revenues | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | Three months ended | ​ | Six months ended
​ | June 30, 2022 | ​ | June 30, 2021 | ​ | June 30, 2022 | ​ | June 30, 2021
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Services transferred over time | $ | 154,680 | ​ | $ | 104,488 | ​ | $ | 308,272 | ​ | $ | 206,520
Goods and services transferred at a point in time | ​ | 11,867 | ​ | ​ | 11,876 | ​ | ​ | 18,188 | ​ | ​ | 27,272
Total revenue accounted for under ASC 606 | ​ | 166,547 | ​ | ​ | 116,364 | ​ | ​ | 326,460 | ​ | ​ | 233,792
Summary of contracts asset and liabilities | Contract assets and liabilities consisted of the following (amounts in thousands) ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | June 30, 2022 | ​ | December 31, 2021 | ​ | ​ | $ Change | ​ | % Change
Contract asset – current | $ | 3,502 | ​ | $ | 4,805 | ​ | $ | (1,303) | ​ | (27) | %
Contract asset – noncurrent | ​ | 906 | ​ | ​ | 900 | ​ | ​ | 6 | ​ | 1 | %
Contract liability – current | ​ | (25,181) | ​ | ​ | (25,332) | ​ | ​ | 151 | ​ | 1 | %
Contract liability – noncurrent | ​ | (75,919) | ​ | ​ | (81,391) | ​ | ​ | 5,472 | ​ | 7 | %
Net contract liability | $ | (96,692) | ​ | $ | (101,018) | ​ | $ | 4,326 | ​ | 4 | %
Schedule of activity in allowances for credit losses | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Six months ended June 30, 2022 | ​ | Six months ended June 30, 2021
​ | ​ | ​ | ​ | ​ | ​ | ​
Balance at beginning of period |  | $ | 13,885 | ​ | $ | 12,121
Current period provision for expected losses |  | ​ | 3,153 | ​ | ​ | 2,299
Write-offs charged against the allowance |  | ​ | (1,497) | ​ | ​ | (1,196)
Recoveries collected | ​ | ​ | 208 | ​ | ​ | 267
Balance at end of period | ​ | $ | 15,749 | ​ | $ | 13,491

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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=124255953&loc=SL82919249-210447 + Details
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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=123351226&loc=SL49130551-203045 + Details
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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130545-203045 + Details
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