Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation and Significant Accounting Policies - Shipping Expense - Additional Information (Details)

v3.19.3.a.u2
Basis of Presentation and Significant Accounting Policies - Shipping Expense - Additional Information (Details) - USD ($)
$ in Thousands
3 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Schedule Of Expense [Line Items]    
Selling, general and administrative expenses $ 5,915 $ 6,626
Shipping    
Schedule Of Expense [Line Items]    
Selling, general and administrative expenses $ 100 $ 200