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Stock-Based Compensation Plans - Stock Options (Details) - USD ($)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Share-based Payment Arrangement [Abstract]    
Stock options expense $ 0 $ 0
Unrecognized compensation expense $ 0  
Outstanding stock options (in shares) 80,000  
Weighted average exercise price (in USD per share) $ 27.70