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STOCK BASED COMPENSATION - Summary Of RSU And RSA Activity (Details)	12 Months Ended
	Dec. 31, 2020 $ / shares shares
Time-Based Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Balance (in shares)	1,104,729
Granted (in shares)	932,517
Vested (in shares)	(661,923)
Forfeited (in shares)	(145,252)
Balance (in shares)	1,230,071
Time-Based Restricted Stock Awards
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Balance (in shares)	61,136
Granted (in shares)	0
Vested (in shares)	(27,170)
Forfeited (in shares)	(3,940)
Balance (in shares)	30,026
Time-based RSUs and RSAs
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Balance (in shares)	1,165,865
Granted (in shares)	932,517
Vested (in shares)	(689,093)
Forfeited (in shares)	(149,192)
Balance (in shares)	1,260,097
Weighted-Average Grant Date Fair Value
Balance (in dollars per share) | $ / shares	$ 48.47
Granted (in dollars per share) | $ / shares	54.00
Vested (in dollars per share) | $ / shares	45.02
Forfeited (in dollars per share) | $ / shares	51.86
Balance (in dollars per share) | $ / shares	$ 54.04
Performance-Based Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Balance (in shares)	15,752
Granted (in shares)	183,981
Vested (in shares)	(12,742)
Forfeited (in shares)	(19,864)
Balance (in shares)	167,127
Performance-Based Restricted Stock Awards
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Balance (in shares)	114,857
Granted (in shares)	0
Vested (in shares)	(87,769)
Forfeited (in shares)	(11,036)
Balance (in shares)	16,052
Performance-based RSUs and RSAs
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Balance (in shares)	130,609
Granted (in shares)	183,981
Vested (in shares)	(100,511)
Forfeited (in shares)	(30,900)
Balance (in shares)	183,179
Weighted-Average Grant Date Fair Value
Balance (in dollars per share) | $ / shares	$ 49.70
Granted (in dollars per share) | $ / shares	52.86
Vested (in dollars per share) | $ / shares	49.28
Forfeited (in dollars per share) | $ / shares	50.98
Balance (in dollars per share) | $ / shares	$ 52.89

X

- Definition

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

+ References

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-Name Accounting Standards Codification
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-SubTopic 10
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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 number of grants made 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 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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