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REVENUE AND RECEIVABLES (Tables)

12 Months Ended

Dec. 31, 2022

REVENUE AND RECEIVABLES

Summary of revenues

​

​	​	​	​	​	​	​	​	​
​	​	Year ended
​	​	2022	​	​	2021	​	​	2020
Services transferred over time	​	​	​	​	​	​	​	​
US Telecom	$	301,309	​	$	188,405	​	$	96,935
International Telecom	​	332,507	​	​	319,357	​	​	305,844
Solar	​	—	​	​	418	​	​	4,556
Total services transferred over time	​	633,816	​	​	508,180	​	​	407,335
Goods and services transferred at a point in time	​	​	​	​	​	​	​	​
US Telecom	​	29,203	​	​	46,433	​	​	12,154
International Telecom	​	14,934	​	​	10,928	​	​	9,196
Total goods and services transferred at a point in time	​	44,137	​	​	57,361	​	​	21,350
Total revenue accounted for under ASC 606	​	677,953	​	​	565,541	​	​	428,685

Summary of contracts asset and liabilities

Contract assets and liabilities consisted of the following (amounts in thousands):

​	​	​	​	​	​	​	​	​	​	​	​
​	December 31, 2022		​	December 31, 2021		​	​	$ Change	​	% Change
Contract asset – current	$	2,932	​	$	4,805	​	$	(1,873)	​	(39)	%
Contract asset – noncurrent	​	3,775	​	​	900	​	​	2,875	​	319	%
Contract liability – current	​	(27,284)	​	​	(25,332)	​	​	(1,952)	​	(8)	%
Contract liability – noncurrent	​	(72,543)	​	​	(81,391)	​	​	8,848	​	11	%
Net contract liability	$	(93,120)	​	$	(101,018)	​	$	7,898	​	8	%

Schedule of activity in allowances for credit losses

​

​	​	​	​	​	​	​
​		Year ended December 31, 2022			Year ended December 31, 2021
​	​	​	​	​	​	​
Balance at beginning of period		$	13,885	​	$	12,121
Current period provision for expected losses		​	6,695	​	​	4,850
Write-offs charged against the allowance		​	(5,518)	​	​	(3,517)
Recoveries collected	​	​	109	​	​	431
Balance at end of period	​	$	15,171	​	$	13,885

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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 https://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447

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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 https://asc.fasb.org/extlink&oid=126920106&loc=SL49130551-203045

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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 https://asc.fasb.org/extlink&oid=126920106&loc=SL49130545-203045

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