Quarterly report [Sections 13 or 15(d)]

Equity-Based Compensation - Additional Information (Detail)

v3.26.1
Equity-Based Compensation - Additional Information (Detail) - USD ($)
$ / shares in Units, $ in Thousands
 1 Months Ended 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 04, 2025
Jun. 08, 2022
May 31, 2026
Dec. 31, 2025
May 31, 2025
May 31, 2024
May 31, 2023
Apr. 30, 2023
Nov. 30, 2022
May 31, 2022
May 31, 2021
May 31, 2020
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Nov. 02, 2012
Class A Common Stock                                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                                    
Restricted stock units granted                             19,076 13,881    
Class B Common Stock                                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                                    
Restricted stock units granted                             98,992      
Non-Qualified Stock Options                                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                                    
Restricted stock units granted                       86,764            
Fair value assumptions, strike price                       $ 10.18            
Fair value assumptions, risk free rate                       0.64%            
Fair value assumptions, expiration                       10 years            
Fair value assumptions, volatility                       48.00%            
Compensation expense forfeiture rate                       1.00%            
Compensation expense                         $ 588 $ 401 $ 1,103 $ 855    
Recognition period of unrecognized compensation expense related to unvested awards                             1 year 10 months 9 days   1 year 10 months 24 days  
Unrecognized compensation expense related to unvested awards       $ 3,771                 $ 3,341   $ 3,341   $ 3,771  
Restricted Stock Units                                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                                    
Restricted stock units granted                             19,076      
2012 Equity Incentive Plan                                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                                    
Shares reserved for issuance, authorized 4,237,500 2,737,500                               1,687,500
Increase in the number of shares issuable 1,500,000 1,050,000                                
Shares reserved for issuance                         1,747,025   1,747,025      
2012 Equity Incentive Plan | Non-Qualified Stock Options                                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                                    
Fair value assumptions, strike price       $ 15.29   $ 14.65                     $ 15.29  
Fair value assumptions, risk free rate       4.18%   4.63%                        
Fair value assumptions, expiration       10 years   10 years                        
Fair value assumptions, volatility       32.63%   35.50%                        
Fair value assumptions, dividend       5.49%   5.19%                        
Compensation expense forfeiture rate       1.00%   1.00%                        
2012 Equity Incentive Plan | Non-Qualified Stock Options | Class B Common Stock                                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                                    
Restricted stock units granted       509,481   279,529                        
2012 Equity Incentive Plan | Employee                                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                                    
Restricted stock units granted                     116,823              
Fair Value per unit                     $ 13.91              
2012 Equity Incentive Plan | Employee | Class A Common Stock                                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                                    
Restricted stock units granted             11,822     10,270                
Fair Value per unit             $ 18.61     $ 21.42                
2012 Equity Incentive Plan | Employee | Restricted Stock Units | Class A Common Stock                                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                                    
Restricted stock units granted       9,249                            
Fair Value per unit       $ 14.48                         14.48  
Restricted stock units\non-qualified stock options, granted description       Twenty-five percent of the RSUs granted will vest and settle on each of the first, second, third and fourth anniversaries of the grant date.     These RSUs vested and settled in the form of Class A shares of SLP in May 2026.     The RSUs vested and settled in the form of Class A shares of SLP in May 2025.                
2012 Equity Incentive Plan | Employee | Restricted Stock Units | Class B Common Stock                                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                                    
Restricted stock units granted       23,704   53,902   101,192 92,154                  
Fair Value per unit       $ 14.48   $ 14.65   $ 18.18 $ 18.99               $ 14.48  
Restricted stock units\non-qualified stock options, granted description       Twenty-five percent of the RSUs granted will vest and settle on each of the first, second, third and fourth anniversaries of the grant date.   Twenty-five percent of the RSUs granted will vest and settle on each of the first, second, third and fourth anniversaries of the grant date.   Twenty-five percent of the RSUs granted will vest and settle on each of the first, second, third and fourth anniversaries of the grant date. Twenty-five percent of the RSUs granted will vest and settle on each of the first, second, third and fourth anniversaries of the grant date.                  
2012 Equity Incentive Plan | First Anniversary | Employee | Class A Common Stock                                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                                    
Restricted stock units granted           3,413                        
Fair Value per unit           $ 14.65                        
2012 Equity Incentive Plan | First Anniversary | Employee | Restricted Stock Units | Class A Common Stock                                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                                    
Restricted stock units granted         3,155                          
Fair Value per unit         $ 15.85                          
Restricted stock units\non-qualified stock options, granted description         These RSUs vested and settled in the form of Class A shares of SLP in May 2026. The RSUs vested and settled in the form of Class A shares of SLP in May 2025                        
2012 Equity Incentive Plan | First Anniversary | Board of Directors                                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                                    
Restricted stock, vesting percentage       0.33%   0.33%                        
2012 Equity Incentive Plan | Second Anniversary | Board of Directors                                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                                    
Restricted stock, vesting percentage       0.33%   0.33%                        
2012 Equity Incentive Plan | Third Anniversary | Employee | Class B Common Stock                                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                                    
Restricted stock units granted           11,604                        
Fair Value per unit           $ 14.65                        
2012 Equity Incentive Plan | Third Anniversary | Employee | Restricted Stock Units | Class A Common Stock                                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                                    
Restricted stock units granted     19,076   10,726                          
Fair Value per unit     $ 13.42   $ 15.85                          
Restricted stock units\non-qualified stock options, granted description     The RSUs will vest and settle on the third anniversary of the grant date.   The RSUs will vest and settle on the third anniversary of the grant date.                          
2012 Equity Incentive Plan | Third Anniversary | Employee | Restricted Stock Units | Class B Common Stock                                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                                    
Restricted stock units\non-qualified stock options, granted description           The RSUs will vest and settle on the third anniversary of the grant date.                        
2012 Equity Incentive Plan | Third Anniversary | Board of Directors                                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                                    
Restricted stock, vesting percentage       0.33%   0.33%                        
2012 Equity Incentive Plan | Fourth Anniversary | Employee                                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                                    
Restricted stock, vesting percentage                 25.00%                  
2012 Equity Incentive Plan | Fourth Anniversary | Board of Directors                                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                                    
Restricted stock, vesting percentage       0.33%   0.33%                        
2012 Equity Incentive Plan | Three Year Annual Vesting Period | Non-Qualified Stock Options                                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                                    
Restricted stock units\non-qualified stock options, granted description                             One third of the NQOs will vest and become exercisable on each of the first, second and third anniversaries of the grant date.   One third of the NQOs will vest and become exercisable on each of the first, second and third anniversaries of the grant date.