Balance Sheet Details (Tables)

6 Months Ended

Mar. 31, 2020

Balance Sheet Details

Components of inventories

Inventories consist of the following (in thousands):

	March 31,		September 30,
	2020		2019
Finished products	$	17,840	$	10,905
Work in process and inventoried costs under long-term contracts		76,229		46,951
Materials and purchased parts		45,583		48,938
Net inventories	$	139,652	$	106,794

Components of property, plant and equipment

Significant components of property, plant and equipment are as follows (in thousands):

	March 31,		September 30,
	2020		2019
Land and land improvements	$	7,364	$	7,348
Buildings and improvements		48,514		48,191
Machinery and other equipment		120,498		107,297
Software		110,439		108,526
Leasehold improvements		18,719		17,064
Construction and internal-use software development in progress		22,536		16,814
Accumulated depreciation and amortization		(171,625)		(160,271)
	$	156,445	$	144,969