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LEASES - Other lease cost information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
LEASES
Weighted average remaining lease term (in years)	10 years 3 months		10 years 3 months		10 years 7 months 24 days
Weighted average discount rate	4.58%		4.58%		4.63%
Cash paid for operating leases	$ 6,021	$ 5,828	$ 11,979	$ 11,402
Right-of-use assets obtained in exchange for operating lease liabilities	$ 5,040	$ 2,270	$ 7,232	$ 24,478

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No definition available.

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- Definition

Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
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Weighted average discount rate for operating lease calculated at point in time.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
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- Definition

Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
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Amount of increase in right-of-use asset obtained in exchange for operating lease liability.

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-Publisher FASB
-Name Accounting Standards Codification
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