XML 87 R74.htm IDEA: XBRL DOCUMENT v3.21.1
Stockholders' Equity - Additional Information (Detail) - USD ($)
12 Months Ended
Feb. 15, 2021
Aug. 15, 2020
Mar. 31, 2019
Mar. 14, 2019
Oct. 15, 2018
Mar. 15, 2018
Oct. 31, 2017
Mar. 07, 2017
Mar. 31, 2016
Dec. 31, 2020
Dec. 31, 2019
Feb. 12, 2018
Nov. 04, 2016
Class Of Stock [Line Items]                          
Percentage of conversion of convertible notes                   5.75%      
Shares issued on conversion of 5.75% Convertible Notes                     $ 6,225,000    
Payment made in cash                   $ 1,423,000      
Reverse stock split, shares issued       0                  
Stock options, expired                     1,500    
Stock options expired, weighted average exercise price                     $ 171.60    
Value of common stock shares repurchased in connection with net share settlement of restricted stock grants                   84,000 $ 189,000    
Maximum                          
Class Of Stock [Line Items]                          
Compensation expense (benefit) related to stock grants                   100,000 100,000    
Stock Options                          
Class Of Stock [Line Items]                          
Compensation expense (benefit) related to stock grants                   $ 0 $ 0    
Stock options granted                   0 0    
Restricted Stock                          
Class Of Stock [Line Items]                          
Compensation expense (benefit) related to stock grants                   $ 200,000 $ 800,000    
Share based compensation awards vesting period                   3 years      
Share based compensation awards granted in period                   0 329,145    
Share based compensation awards granted in period, fair market value                   $ 0 $ 600,000    
Value of common stock shares repurchased in connection with net share settlement of restricted stock grants                     $ 200,000    
Granted                     $ 1.70    
Share based compensation awards vested in period                   196,332 241,082    
Share based compensation awards forfeited in period                     296    
Restricted Stock | Minimum                          
Class Of Stock [Line Items]                          
Compensation cost not yet recognized, periods for recognition                   12 months      
Restricted Stock | Maximum                          
Class Of Stock [Line Items]                          
Compensation cost not yet recognized, periods for recognition                   15 months      
Value of common stock shares repurchased in connection with net share settlement of restricted stock grants                   $ 100,000      
Employment Inducement Award | Former Chief Executive Officer                          
Class Of Stock [Line Items]                          
Grant date fair value of award issued         $ 1.80                
Restricted Stock                          
Class Of Stock [Line Items]                          
Compensation expense (benefit) related to stock grants                   $ 100,000 $ 200,000    
Compensation cost not yet recognized, periods for recognition                   12 months      
Compensation cost not yet recognized                   $ 100,000      
Common Stock                          
Class Of Stock [Line Items]                          
Shares issued                   1,316,000      
Payment made in cash                   $ 1,000      
5.75% Convertible Notes | Maximum                          
Class Of Stock [Line Items]                          
Percentage of conversion of convertible notes                       5.75%  
5.75% Convertible Notes | Common Stock                          
Class Of Stock [Line Items]                          
Percentage of conversion of convertible notes   5.75%                      
Shares issued   1,300,000                      
Shares issued on conversion of 5.75% Convertible Notes   $ 1,400,000                      
Payment made in cash   $ 1,300,000                      
5.75% Convertible Notes | Common Stock | Subsequent Event                          
Class Of Stock [Line Items]                          
Percentage of conversion of convertible notes 5.75%                        
Shares issued 1,000,000                        
2016 Omnibus Incentive Plan                          
Class Of Stock [Line Items]                          
Common stock reserved for issuance                   200,000     200,000
Number of additional common stock shares approved for issuance under Incentive Plan             190,000            
Long Term Incentive Compensation Plan | Restricted Stock                          
Class Of Stock [Line Items]                          
Compensation cost not yet recognized                   $ 100,000      
2016 LTIP                          
Class Of Stock [Line Items]                          
Share based compensation awards granted in period                 700,000        
Granted                 $ 73.10        
Share based compensation awards, granted in period, value                 $ 5,200,000        
Share-based compensation award, shares issued upon expiration of grant     100,000                    
2016 LTIP | Performance Shares                          
Class Of Stock [Line Items]                          
Compensation expense (benefit) related to stock grants                   $ 500,000      
Compensation cost not yet recognized                     $ 100,000    
2016 LTIP | Performance Shares | Maximum                          
Class Of Stock [Line Items]                          
Compensation cost not yet recognized, periods for recognition                   1 year      
2017 LTIP                          
Class Of Stock [Line Items]                          
Share based compensation awards granted in period               0.1          
Granted               $ 75.20          
Share based compensation awards, granted in period, value               $ 6,600,000          
2017 LTIP | RSUs                          
Class Of Stock [Line Items]                          
Share based compensation award, description of vesting rights                   one third annually      
2017 LTIP | Performance Shares                          
Class Of Stock [Line Items]                          
Share based compensation award, description of vesting rights                   based on performance metrics approved by the Compensation Committee      
Share based compensation awards vested in period                     0    
2018 LTIP                          
Class Of Stock [Line Items]                          
Share based compensation awards vesting period           15 days              
Share based compensation awards granted in period           200,000              
Granted           $ 13.80              
Share based compensation awards, granted in period, value           $ 3,100,000              
Share based compensation award, description of vesting rights                   48 equal semi-monthly installments      
Share based compensation cash awards, aggregate amount.           $ 3,100,000              
2018 LTIP | Maximum                          
Class Of Stock [Line Items]                          
Share based compensation awards forfeited in period                   100,000      
2018 LTIP | Performance Shares | Maximum                          
Class Of Stock [Line Items]                          
Weighted average contractual term of awards outstanding and exercisable                   1 year