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SUMMARY OF SIGNIFICANT ACCOUNTING AND BUSINESS POLICIES - Revenue Recognition (Details)	12 Months Ended
	Dec. 31, 2020
Minimum
Deferred Revenue Arrangement [Line Items]
Revenue performance obligation expected satisfaction period	one
Maximum
Deferred Revenue Arrangement [Line Items]
Revenue performance obligation expected satisfaction period	two

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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

X

- Definition

Description of timing for satisfying performance obligation in contract with customer. Includes, but is not limited to, as services are rendered, and upon shipment, delivery or completion of service.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 12
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130554-203045

+ Details

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Balance Type:	na
Period Type:	duration

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- Details

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Namespace Prefix:
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Balance Type:
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X

- Details

Name:	srt_RangeAxis=srt_MaximumMember
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