XML 61 R52.htm IDEA: XBRL DOCUMENT v3.23.1
Stock-based Compensation - Additional Information (Detail) - USD ($)
$ in Thousands
1 Months Ended 3 Months Ended
Apr. 30, 2022
May 31, 2020
Mar. 31, 2023
Mar. 31, 2022
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Number of stock option granted     0 0
Stock-based compensation expense     $ (758) $ 4,642
2019        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Shares issued 979,600      
Performance Units Awards        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Performance period     3 years  
Unrecognized compensation cost     $ 9,600  
Weighted-average remaining vesting period     11 months 12 days  
Performance Units Awards | Condition One [Member]        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Award description     The performance goals for the Performance Units are tied to our total shareholder return for the performance period as compared to total shareholder return for a peer group determined by the Compensation Committee. For the performance units granted in April 2022 and April 2021, the peer group includes one market index and three market indices, respectively. The performance goals are considered to be market conditions under the relevant accounting standards and the market conditions were factored into the determination of the fair value of the respective Performance Units. The recipients will receive the target number of shares if our total shareholder return during the performance period, when compared to the peer group, is at the 55th percentile. If our total shareholder return during the performance period, when compared to the peer group, is at the 75th percentile or higher, then the recipients will receive two times the target number of shares. If our total shareholder return during the performance period, when compared to the peer group, is at the 25th percentile, then the recipients will only receive one-half of the target number of shares. If our total shareholder return during the performance period, when compared to the peer group, is between the 25th and 55th percentile, or the 55th and 75th percentile, then the shares to be received by the recipients will be determined using linear interpolation for levels of achievement between these points.  
Phantom Share Units (PSUs)        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Award description     Mr. Hendricks could earn from 0% to 200% of a target award of 298,500 phantom units based on our achievement of the same performance conditions over the same performance period that applies to the Performance Units granted in April 2020, as described above. We expect the Phantom Units will be settled in May 2023. The Phantom Units will be settled in a cash payment equal to the earned phantom units multiplied by our average trading price per share over the twenty consecutive trading days preceding March 31, 2023.  
Grant date fair value   $ 1,200    
Expense recognized     $ 1,000 $ 3,100
Phantom Share Units (PSUs) | Chief Executive Officer and President        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Number of units awardable based on performance conditions   298,500    
Phantom Share Units (PSUs) | Chief Executive Officer and President | Minimum        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Percentage of target award vesting rights   0.00%    
Phantom Share Units (PSUs) | Chief Executive Officer and President | Maximum        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Percentage of target award vesting rights   200.00%    
Restricted Stock Units (RSUs)        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Unrecognized compensation cost     $ 28,200  
Weighted-average remaining vesting period     1 year 6 months 25 days