Annual report pursuant to Section 13 and 15(d)

Related Parties - Additional Information (Detail)

v3.20.2
Related Parties - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended
Dec. 31, 2017
Sep. 30, 2020
SunTx Capital Partners | Affiliated Entity    
Related Party Transaction [Line Items]    
Payment to related party $ 250  
Consideration Note Receivable    
Related Party Transaction [Line Items]    
Note receivable as consideration for sale of the wholly-owned subsidiary 1,000  
Accounts Payable Note Receivable    
Related Party Transaction [Line Items]    
Note receivable as consideration for sale of the wholly-owned subsidiary $ 1,000  
Other Current Assets | Consideration Note Receivable    
Related Party Transaction [Line Items]    
Note receivable as consideration for sale of the wholly-owned subsidiary   $ 100
Other Current Assets | Accounts Payable Note Receivable    
Related Party Transaction [Line Items]    
Note receivable as consideration for sale of the wholly-owned subsidiary   100
Other Noncurrent Assets | Consideration Note Receivable    
Related Party Transaction [Line Items]    
Note receivable as consideration for sale of the wholly-owned subsidiary   500
Other Noncurrent Assets | Accounts Payable Note Receivable    
Related Party Transaction [Line Items]    
Note receivable as consideration for sale of the wholly-owned subsidiary   $ 300