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Share-Based Payment Arrangements (Summary of the Status of Restricted Stock Units) (Details) - Restricted Stock Units (RSUs) [Member] - shares
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Nonvested at January 1 228,827 353,491
Granted 523,757 0
Vested (30,309) (19,065)
Forfeited (140,586) (105,599)
Nonvested at December 31 581,689 228,827