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Capital Stock and Equity Compensation (Deferred Stock Units) (Details) - Deferred Stock Units
3 Months Ended
Mar. 31, 2022
shares
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]  
Awards outstanding beginning balance (in shares) 9,500
Awards granted (in shares) 0
Stock issued (in shares) (1,000)
Awards outstanding ending balance (in shares) 8,500