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Stock Compensation Plans (Narrative) (Details)
$ in Thousands
3 Months Ended
Mar. 31, 2022
USD ($)
employee
shares
RSUs | Cliff  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Vesting period 3 years
Performance-Based RSUs  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Total unrecognized compensation cost $ 23,200
Weighted average period to recognize unrecognized compensation cost 2 years 3 months 21 days
Modified from cash-settled RSUs (in shares) | shares 0
Performance-Based RSUs | Minimum  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Potential for awards to vest (as a percent) 0.00%
Performance-Based RSUs | Maximum  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Potential for awards to vest (as a percent) 200.00%
Performance-Based RSUs | Cliff  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Vesting period 3 years
Time-Based RSUs  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Number of grantees affected | employee 119
Plan modification, incremental cost $ 0
Total unrecognized compensation cost $ 43,100
Weighted average period to recognize unrecognized compensation cost 2 years 3 months 25 days
Modified from cash-settled RSUs (in shares) | shares 31,523
Time-Based RSUs Settled in Cash  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Cash used to settle award $ 318