Annual report pursuant to Section 13 and 15(d)

Subsequent Events (Detail)

v3.20.2
Subsequent Events (Detail) - USD ($)
$ in Thousands
2 Months Ended
Dec. 11, 2020
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2018
Subsequent Event [Line Items]        
Goodwill   $ 46,348 $ 38,546 $ 32,919
North Carolina Acquisitions | Subsequent Event        
Subsequent Event [Line Items]        
Cash payment to acquire business $ 57,400      
Goodwill $ 21,100