Annual report pursuant to Section 13 and 15(d)

Retirement and Long-Term Incentive Plans - Additional Information (Details)

v3.22.1
Retirement and Long-Term Incentive Plans - Additional Information (Details) - USD ($)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Employer discretionary contribution $ 400,000 $ 500,000
Available shares for future issuance (in shares) 1,096,994  
Share-based compensation cost charged against income $ 1,708,000 $ 1,126,000
Outstanding stock option awards 0  
Stock option awards granted 0 0
Maximum    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Maximum number of shares available for grant for each employee (in shares) 250,000  
Time-based RSU Awards | Maximum    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
RSU awards vesting period 3 years  
Time-based RSU Awards | Minimum    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
RSU awards vesting period 2 years  
Performance-based RSU Awards    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
RSU awards vesting period 3 years  
Cash Settled RSU Awards    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Share-based compensation cost charged against income $ 100,000  
Total fair value of shares granted $ 200,000  
Weighted average grant date fair value $ 4.77  
RSUs    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Share-based compensation cost charged against income $ 1,700,000 $ 1,000,000.0
Weighted average grant date fair value $ 4.71 $ 3.80
Total unrecognized compensation costs $ 2,700,000  
Recognition of compensation cost, weighted average period 1 year 9 months 18 days  
Value of awards granted $ 2,600,000  
Total fair value of shares vested 1,200,000  
Cash-Based Performance Awards    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Performance based share compensation expense $ 0 $ 0
Performance period awards are earned 3 years  
Target amounts payable associated with performance period $ 0 $ 0