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Long-Term Incentive Compensation (Stock Appreciation Rights) (Details) - Stock Appreciation Rights
shares in Thousands
12 Months Ended
Dec. 31, 2021
shares
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]  
Nonvested at beginning of year (in shares) 248
Granted (in shares) 0
Forfeited (in shares) (11)
Nonvested at the end of year (in shares) 237