Annual report pursuant to Section 13 and 15(d)

SUBSEQUENT EVENTS (Subsequent Events) (Details)

v3.20.4
SUBSEQUENT EVENTS (Subsequent Events) (Details) - USD ($)
1 Months Ended
Jan. 31, 2021
Oct. 31, 2019
Mar. 31, 2018
Dec. 31, 2020
Subsequent Event [Line Items]        
Cash available for general corporate purposes   $ 527,500,000 $ 492,500,000  
Subsequent Event [Member]        
Subsequent Event [Line Items]        
Cash available for general corporate purposes $ 417,000,000.0      
3.75% Senior Secured Notes Due 2028 [Member] | Subsequent Event [Member]        
Subsequent Event [Line Items]        
Face Amount $ 500,000,000      
Interest rate, stated percentage 3.75%      
Payment of estimated fees $ 8,000,000.0      
3.75% Senior Secured Notes Due 2028 [Member] | Subsequent Event [Member] | Redemption Period Prior Stated Date [Member]        
Subsequent Event [Line Items]        
Redemption price, percentage 100.00%      
3.75% Senior Secured Notes Due 2028 [Member] | Subsequent Event [Member] | Redemption, Equity Offerings [Member]        
Subsequent Event [Line Items]        
Redemption price, percentage 103.75%      
Percentage of notes which may be redeemed 35.00%      
3.75% Senior Secured Notes Due 2028 [Member] | Subsequent Event [Member] | Redemption, Defined Changes of Control [Member]        
Subsequent Event [Line Items]        
Redemption price, percentage 101.00%      
Senior Secured Credit Facility Term loan B        
Subsequent Event [Line Items]        
Face Amount   $ 950,000,000   $ 950,000,000
Senior Secured Credit Facility Term loan B | Subsequent Event [Member]        
Subsequent Event [Line Items]        
Repayment of debt $ 75,000,000.0