STOCK-BASED COMPENSATION (Restricted Stock and Restricted Stock Units Additional Information) (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020
Equity classified award \| Service period \| Equity-settled award \| Restricted stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost	$ 300
Unrecognized compensation cost, period for recognition	8 months 12 days
Equity classified award \| Service period \| Equity-settled award \| Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost	$ 112,000
Unrecognized compensation cost, period for recognition	2 years 8 months 12 days
Equity classified award \| Performance targets \| Equity-settled award \| Restricted stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost	$ 600
Unrecognized compensation cost, period for recognition	1 year 8 months 12 days
Equity classified award \| Performance targets \| Equity-settled award \| Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost	$ 5,000
Unrecognized compensation cost, period for recognition	3 years 1 month 6 days
Liability classified award \| Service period \| Cash-settled award \| Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost	$ 38,600
Unrecognized compensation cost, period for recognition	2 years 3 months 18 days
Liability classified award \| Service period \| Cash-settled award \| Restricted stock units \| Accrued compensation and benefits expenses
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Liability associated with stock-based awards current	$ 31,500	$ 26,800

Aggregate carrying value as of the balance sheet date of the liabilities for stock option plans and other equity-based compensation arrangements payable within one year (or the operating cycle, if longer).

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.20)
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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