Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies - Income Taxes (Details)

v3.19.3
Summary of Significant Accounting Policies - Income Taxes (Details) - USD ($)
$ in Thousands
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2017
Accounting Policies [Abstract]      
Valuation allowance relating to unutilized capital loss $ 0 $ 5,634 $ 581