INCOME TAXES - Reconciliation of the Beginning and Ending Amount of Unrecognized Tax Benefits (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Reconciliation of the Beginning and Ending Amount of Unrecognized Tax Benefits
Balance of unrecognized tax benefits at beginning of period	$ 6,950	$ 5,774	$ 6,456
Additions for tax positions taken during current period	180	882	748
Additions for tax positions taken during prior periods	4,774	715	192
Reductions for tax positions taken during prior periods	(800)	(421)	(675)
Settlements	(385)	0	(947)
Balance of unrecognized tax benefits at end of period	$ 10,719	$ 6,950	$ 5,774

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

No definition available.

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- Definition

Amount of unrecognized tax benefits.

+ References

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Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities.

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Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.

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Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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