Leases - Supplemental Balance Sheet Information (Details 1) - USD ($) $ in Thousands	Dec. 31, 2019	Sep. 30, 2019
Operating Leases
Right-of-use Assets	$ 17,679
Liabilities
Short-term lease liabilities	7,226
Long-term lease liabilities	12,514
Total Lease Liabilities	19,740	$ 19,740
Finance Leases
Right-of-use Assets	1,138
Liabilities
Short-term lease liabilities	390
Long-term lease liabilities	564
Total Lease Liabilities	954	$ 954
Total
Right-of-use Assets	18,817
Liabilities
Short-term lease liabilities	7,616
Long-term lease liabilities	13,078
Total Lease Liabilities	$ 20,694