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Debt and Credit Facility (4.625% Senior Notes) - Additional Information (Details) - Senior Notes Due 2028 - Senior Notes - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Nov. 26, 2019
Debt Instrument        
Debt principal amount       $ 500.0
Debt instrument contractual rate (percent)     4.625% 4.625%
Debt issuance, percentage of principal amount       100.00%
Unamortized debt issuance costs $ 5.6      
Interest expense $ 24.0 $ 24.0    
Effective interest rate (percent) 4.80%      
Fair value of outstanding debt $ 506.9 $ 521.3    
Consolidated net debt ratio 275.00%      
Change in control        
Debt Instrument        
Redemption price as percentage of principal (percent)   101.00%    
On or After March 1, 2023        
Debt Instrument        
Redemption price as percentage of principal (percent) 102.313%      
On or After March 1, 2024        
Debt Instrument        
Redemption price as percentage of principal (percent) 101.156%      
On or After March 1, 2025        
Debt Instrument        
Redemption price as percentage of principal (percent) 100.00%      
Prior to March 1, 2023, Plus Applicable Premium        
Debt Instrument        
Redemption price as percentage of principal (percent) 100.00%      
Prior to March 1, 2023        
Debt Instrument        
Redemption price as percentage of principal (percent) 104.625%      
Prior to March 1, 2023 | Maximum        
Debt Instrument        
Percentage of principal that can be redeemed (percent) 40.00%      
Upon receipt of the proceeds of certain asset sale        
Debt Instrument        
Redemption price as percentage of principal (percent)   100.00%