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SHARE-BASED COMPENSATION - Share/Cash Settled Restricted Stock Units (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Weighted  average grant date fair value
Liability for cash-settled restricted stock units	$ 4,084		$ 9,091
Performance Vesting Restricted Stock Units | Share Settled
Number of restricted stock units
Nonvested restricted stock units - beginning of period (in shares)	311
Granted (in shares)	140
Vested (in shares)	(100)
Forfeited (in shares)	0
Nonvested restricted stock units - end of period (in shares)	351
Weighted  average grant date fair value
Nonvested restricted stock units - beginning of period (in usd per share)	$ 54.75
Granted (in usd per share)	68.63
Vested (in usd per share)	54.70
Forfeited (in usd per share)	0
Nonvested restricted stock units - end of period (in usd per share)	$ 60.15
Restricted Stock Units (RSUs)
Weighted  average grant date fair value
Share-based compensation expense	$ 43,595	$ 37,394
Tax benefits associated with share-based compensation expense	7,468	6,248
Fair value of restricted stock units vested	49,239	42,582
Unrecognized share-based compensation expense	$ 91,810	$ 95,636
Expected weighted average period associated with the recognition of unrecognized share-based compensation expense	2 years 6 months	2 years 7 months 6 days
Restricted Stock Units (RSUs) | Share Settled
Number of restricted stock units
Nonvested restricted stock units - beginning of period (in shares)	2,062
Granted (in shares)	989
Vested (in shares)	(682)
Forfeited (in shares)	(180)
Nonvested restricted stock units - end of period (in shares)	2,189
Weighted  average grant date fair value
Nonvested restricted stock units - beginning of period (in usd per share)	$ 51.59
Granted (in usd per share)	56.11
Vested (in usd per share)	52.66
Forfeited (in usd per share)	53.05
Nonvested restricted stock units - end of period (in usd per share)	$ 53.18
Restricted Stock Units (RSUs) | Cash Settled
Number of restricted stock units
Nonvested restricted stock units - beginning of period (in shares)	215
Granted (in shares)	0
Vested (in shares)	(143)
Forfeited (in shares)	(8)
Nonvested restricted stock units - end of period (in shares)	64
Weighted  average grant date fair value
Liability for cash-settled restricted stock units	$ 4,084	$ 6,697

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

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The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

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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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