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Stockholders' Equity - Additional Information (Detail)
$ / shares in Units, shares in Thousands, $ in Thousands
12 Months Ended
Dec. 31, 2021
USD ($)
installment
vote
$ / shares
shares
Dec. 31, 2020
USD ($)
$ / shares
shares
Feb. 12, 2019
shares
Nov. 30, 2014
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock-based compensation | $ $ 633 $ 701    
Unrecognized compensation cost related to nonvested stock issuances | $ $ 900      
Restricted stock units        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of annual installments | installment 4      
Vesting period 4 years      
Stock options        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of annual installments | installment 4      
Vesting period 4 years      
Omnibus incentive plan stock option expiration period 10 years      
Minimum | Restricted stock units        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based compensation arrangement by share-based payment award, award vesting range, percentage 60.00%      
Maximum | Restricted stock units        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based compensation arrangement by share-based payment award, award vesting range, percentage 120.00%      
Common Class B        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Common stock, par value (in dollars per share) | $ / shares $ 0.01 $ 0.01    
Common Stock, number of votes per share | vote 15      
Common stock, shares issued (in shares) 220 220    
Common Class A        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Common stock, par value (in dollars per share) | $ / shares $ 0.01 $ 0.01    
Common Stock, number of votes per share | vote 1      
Common stock, shares issued (in shares) 8,102 7,953    
Common Class A | November 2014 New Share Repurchase Program        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Remaining common stock available for repurchase under share repurchase program (in shares) 404 404    
Common Class A | Maximum | November 2014 New Share Repurchase Program        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
New share repurchase program, shares authorized to repurchase (in shares)       429
Common Class A | 2019 Plan        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of shares authorized (in shares)     2,500  
Common stock, shares issued (in shares) 1,400      
Series C Preferred Stock        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Preferred stock, par value (in dollars per share) | $ / shares $ 0.01 $ 0.01    
Preferred stock, redemption price (in dollars per share) | $ / shares $ 5.00