SHARE-BASED COMPENSATION - Additional information related to share-based compensation (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Liability for cash-settled restricted stock units	$ 21,731	$ 20,648
Restricted Stock and Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation expense incurred	52,218	54,011	$ 67,697
Tax benefit related to share-based compensation costs incurred	8,913	7,772	14,937
Fair value of restricted stock and cash settled awards vested	51,206	50,750	124,990
Unrecognized compensation costs	$ 75,770	$ 87,341	$ 94,315
Weighted average period for recognition of share based compensation	2 years 3 months 18 days	2 years 4 months 24 days	2 years 6 months
Restricted Stock and Restricted Stock Units \| 2014 Long Term Equity Compensation Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value of restricted stock and cash settled awards vested	$ 44,000
Cash Settled \| Restricted Stock and Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Liability for cash-settled restricted stock units	$ 21,731	$ 20,648	$ 21,535

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Aggregate carrying value as of the balance sheet date of the liabilities for stock option plans and other equity-based compensation arrangements.

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Amount of tax benefit for recognition of expense of award under share-based payment arrangement.

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Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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