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Debt (Covenants) (Details)
$ / shares in Units, $ in Millions
3 Months Ended
Mar. 31, 2022
USD ($)
$ / shares
Dec. 31, 2021
$ / shares
Dec. 31, 2020
$ / shares
Debt Instrument Covenant [Abstract]      
Dividends | $ / shares $ 0.01 $ 0.01 $ 0.33
Leverage ratio 0.0700    
Fixed charge coverage ratio 0.0150    
Debt Instrument, Covenant, Maximum, Secured Indebtedness Ratio 45.00%    
Debt Instrument, Covenant, Maximum, Unsecured Indebtedness Ratio 60.00%    
Debt Instrument, Covenant, Minimum, Unsecured Interest Coverage Ratio 0.0200    
Debt Instrument, Actual [Abstract]      
Leverage ratio 0.0423    
Fixed charge coverage ratio 2.52%    
Debt Instrument, Actual, Secured Indebtedness Ratio 1.86%    
Debt Instrument, Actual, Unsecured Indebtedness Ratio 24.70%    
Debt Instrument, Actual, Unsecured Interest Coverage Ratio 0.0169    
Debt Instrument, Covenant, Minimum Liquidity Level | $ $ 125    
$500 Million Term Loan Maturing 2026 | Senior Notes [Member]      
Debt Instrument Covenant [Abstract]      
Debt Instrument, Covenant, Maximum, Secured Indebtedness Ratio 0.45%    
Debt Instrument, Covenant, Minimum, Unsecured Interest Coverage Ratio 0.0150    
Debt Instrument, Covenant, Maximum, Consolidated Indebtedness Ratio 0.0065    
Debt Instrument, Covenant, Minimum, Unencumbered Asset To Unencumbered Debt Ratio 150.00%