Accounts Receivables (Tables)

12 Months Ended

Sep. 30, 2019

Accounts Receivable

Schedule of components of accounts receivable

The components of accounts receivable are as follows (in thousands):

	September 30,
	2019		2018
Accounts receivable
Billed	$	127,406	$	156,948
Unbilled		—		242,877
Allowance for doubtful accounts		(1,392)		(1,324)
Total accounts receivable		126,014		398,501
Less estimated amounts not currently due		—		(6,134)
Current accounts receivable	$	126,014	$	392,367