Balance Sheet Details (Tables)

9 Months Ended

Jun. 30, 2018

Balance Sheet Details

Schedule of components of accounts receivable

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

	June 30,		September 30,
	2018		2017
Accounts receivable
Billed	$	123,661	$	184,983
Unbilled		204,877		186,950
Allowance for doubtful accounts		(1,334)		(436)
Total accounts receivable		327,204		371,497
Less estimated amounts not currently due		(14,791)		(17,457)
Current accounts receivable	$	312,413	$	354,040

Components of inventories

Inventories consist of the following (in thousands):

	June 30,		September 30,
	2018		2017
Finished products	$	2,391	$	4,369
Work in process and inventoried costs under long-term contracts		110,588		84,131
Materials and purchased parts		20,948		10,163
Customer advances		(7,522)		(10,948)
Net inventories	$	126,405	$	87,715