Quarterly report pursuant to Section 13 or 15(d)

Contracts with Customers - Contract Liabilities (Details)

v3.19.3.a.u2
Contracts with Customers - Contract Liabilities (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Sep. 30, 2019
Capitalized Contract Cost [Line Items]    
Contract liabilities $ 565 $ 1,378
Customer deposits    
Capitalized Contract Cost [Line Items]    
Contract liabilities $ 565 $ 1,378