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STOCK-BASED COMPENSATION (Tables)

12 Months Ended

Dec. 31, 2021

Share-based Payment Arrangement [Abstract]

Schedule of Share-based Compensation, Stock Options and Stock Appreciation Rights Award Activity

The following table sets forth a summary of stock-settled stock appreciation rights and related information for the periods presented:

			Year Ended December 31,
			2021																								2020												2019
			Awards						Weighted-Average Exercise Price						Weighted-Average Remaining Contractual Life						Aggregate Intrinsic Value (In thousands)						Awards						Weighted-Average Exercise Price						Awards						Weighted-Average Exercise Price
Beginning of year			2,161,556						$	60.48																	2,337,049						$	59.72					2,351,633						$	59.26
Granted			139,592						77.05																		262,091						48.32						213,618						54.63
Exercised			(916,906)						60.70																		(391,339)						47.11						(113,099)						35.01
Canceled			(13,854)						54.42																		(46,245)						65.93						(115,103)						65.27
End of year			1,370,388						62.09						6.1						$	95,246					2,161,556						60.48						2,337,049						59.72
Exercisable at end of year			1,001,708						$	62.79					5.3						$	68,920					1,630,891						$	62.72					1,723,370						$	59.00

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

The following table sets forth the weighted-average assumptions used to estimate the fair value of stock-settled stock appreciation rights granted during the periods presented:

			Year Ended December 31,
			2021						2020						2019
Stock-settled stock appreciation rights granted			139,592						262,091						213,618
Risk free interest rate			0.8%						1.4%						2.5%
Expected life (in years)			7						5						5
Expected volatility			41%						30%						29%

Schedule of Share-based Compensation, Restricted Stock Units Award Activity

The following table sets forth a summary of time-based restricted stock units and related information for the periods presented:

			Year Ended December 31,
			2021												2020												2019
			Awards						Weighted-Average Fair Value						Awards						Weighted-Average Fair Value						Awards						Weighted-Average Fair Value
Unvested at beginning of year			921,495						$	43.15					363,729						$	60.00					327,798						$	57.87
Granted			314,480						77.81						656,717						37.44						192,106						54.13
Vested			(232,152)						44.10						(83,253)						69.17						(136,777)						46.52
Forfeited			(29,661)						63.86						(15,698)						56.79						(19,398)						59.62
Unvested at end of year			974,162						$	53.48					921,495						$	43.15					363,729						$	60.00

The following table sets forth a summary of performance-based awards and related information for the periods presented:

			Year Ended December 31,
			2021												2020												2019
			Awards						Weighted-Average Fair Value						Awards						Weighted-Average Fair Value						Awards						Weighted-Average Fair Value
Unvested at beginning of year			305,269						$	52.61					195,305						$	60.24					138,896						$	59.33
Granted			122,812						76.76						158,756						49.56						126,874						54.64
Vested			(22,371)						62.80						(25,909)						78.04						(25,696)						42.44
Forfeited			(24,891)						61.26						(22,883)						69.39						(44,769)						52.11
Unvested at end of year			380,819						$	59.23					305,269						$	52.61					195,305						$	60.24

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Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year.

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-Name Accounting Standards Codification
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-SubTopic 10
-Section 50
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Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for stock options and stock appreciation rights that were outstanding at the beginning and end of the year, exercisable at the end of the year, and the number of stock options and stock appreciation rights that were granted, exercised or converted, forfeited, and expired during the year.

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Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

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-SubTopic 10
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