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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Schedule of Changes in AOCI, including the Amounts Reclassified to Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Changes in AOCI, including the amounts reclassified to income
Balance	$ 102,166	$ 90,992
Balance	99,188	102,166
AOCI Including Portion Attributable to Noncontrolling Interest
Changes in AOCI, including the amounts reclassified to income
Balance	61,572	62,411
Balance	62,101	61,572
Foreign currency translation
Changes in AOCI, including the amounts reclassified to income
Unrecognized gain (loss) on foreign currency translation	$ (839)	$ 529

X

- Definition

Amount after tax, before reclassification adjustments of other comprehensive income (loss).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 14A
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-Section 55
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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity.

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