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Contingencies - Additional Information (Detail) - USD ($)
$ in Thousands
1 Months Ended 3 Months Ended 9 Months Ended
Nov. 12, 2019
Oct. 25, 2019
Sep. 16, 2019
May 31, 2016
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Loss Contingencies [Line Items]                
Selling, general and administrative expenses         $ 26,318 $ 30,197 $ 60,846 $ 92,437
Subsequent Event                
Loss Contingencies [Line Items]                
Proposed litigation settlement amount   $ 5,500            
ASC 450                
Loss Contingencies [Line Items]                
Selling, general and administrative expenses         $ 5,500   $ 5,500  
Supply Company, LLC                
Loss Contingencies [Line Items]                
Compensatory damages sought       $ 50,000        
Stipulation                
Loss Contingencies [Line Items]                
Proposed litigation settlement amount     $ 6,000          
Carter Parties Settlement | Subsequent Event                
Loss Contingencies [Line Items]                
Settlement amount realized from exchange of intellectual property assets and membership interests $ 15,000