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REVENUE (Tables)

3 Months Ended

Mar. 31, 2021

REVENUE

Schedule of contract assets and contract liabilities

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​	​	​	​	​	​	​
​		March 31,			December 31,
​		2021			2020
Contract assets	​	$	26,563	​	$	21,825
Contract liabilities	​	$	5,943	​	$	5,121

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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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Namespace Prefix:	us-gaap_
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Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_RevenueFromContractWithCustomerAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration