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STOCK-BASED COMPENSATION - Narrative (Details)
$ in Millions
9 Months Ended 12 Months Ended
Sep. 30, 2022
USD ($)
performance_criteria
shares
Dec. 31, 2019
shares
Mar. 31, 2022
Nov. 01, 2021
shares
Jun. 30, 2021
shares
Apr. 30, 2017
shares
LTIP            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Aggregate intrinsic value, options exercised | $ $ 0.2          
LTIP | Restricted Stock Units (RSUs) and Deferred Stock Units (DSUs) | Non-executive Board Members            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Fair value of units granted | $ $ 28.9          
LTIP | Restricted Stock Units (RSUs)            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Number of shares released upon vesting (in shares) 1          
LTIP | Restricted Stock Units (RSUs) | Vesting Period One            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Vesting period 1 year          
LTIP | Restricted Stock Units (RSUs) | Vesting Period Two            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Vesting period 3 years          
LTIP | Restricted Stock Units (RSUs) | Vesting Period Two, Anniversary One            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Vesting percent of shares 33.00%          
LTIP | Restricted Stock Units (RSUs) | Vesting Period Two, Anniversary Two            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Vesting percent of shares 33.00%          
LTIP | Restricted Stock Units (RSUs) | Vesting Period Two, Anniversary Three            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Vesting percent of shares 33.00%          
LTIP | Deferred Stock Units (DSUs)            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Number of shares released upon vesting (in shares) 1          
LTIP | Deferred Stock Units (DSUs) | Vesting Period One            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Vesting period 1 year          
LTIP | Stock options            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Expiration period 10 years          
LTIP | Performance Stock Units (PSUs) | Minimum            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Ratio at which award holders get common stock of the company 0          
LTIP | Performance Stock Units (PSUs) | Maximum            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Ratio at which award holders get common stock of the company 2          
LTIP | Performance Stock Units (PSUs) | Officers            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Vesting period 3 years          
Fair value of units granted | $ $ 18.5          
Number of trading days 30 days          
LTIP | Performance Stock Units (PSUs) | Officers | Minimum            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Ratio at which award holders get common stock of the company 0          
Performance achievement, number of criteria | performance_criteria 1          
LTIP | Performance Stock Units (PSUs) | Officers | Maximum            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Ratio at which award holders get common stock of the company 2          
Performance achievement, number of criteria | performance_criteria 2          
LTIP | Performance Stock Units (PSUs), TSR | Officers            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Distribution of shares to recipients (as a percentage)     200.00%      
LTIP | ROCE | Officers            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Distribution of shares to recipients (in shares)   0        
2017 LTIP            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Shares reserved for future issuance (in shares)           2,467,430
2021 LTIP            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Shares reserved for future issuance (in shares)         700,000  
Extraction Equity Plan            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Shares reserved for future issuance (in shares)       3,305,080