FIXED ASSETS - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
FIXED ASSETS
Depreciation expense	$ 15,000	$ 12,000	$ 14,000
Capitalized interest	3,900	2,400	$ 0
Fixed assets, net	188,401	136,688
Asset retirement obligation	2,400	2,000
Non-US \| Leasehold improvements
FIXED ASSETS
Fixed assets, net	$ 65,400	$ 67,500

The carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees.

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The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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Amount of interest capitalized during the period.

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Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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