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BALANCE SHEET DETAILS
3 Months Ended
Oct. 31, 2012
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
BALANCE SHEET DETAILS
BALANCE SHEET DETAILS
The following tables provide details of selected balance sheet items:
 
Oct 31, 2012
 
July 31, 2012
Accounts receivable:
 
 
 
Billed
$
516,178

 
$
584,449

Unbilled
99,722

 
82,720

Total
615,900

 
667,169

Less: Allowances for doubtful accounts
(12,129
)
 
(11,733
)
 
$
603,771

 
$
655,436


Unbilled receivables principally relate to revenues accrued for long-term contracts recorded under the percentage-of-completion method of accounting.
 
Oct 31, 2012
 
July 31, 2012
Inventory:
 
 
 
Raw materials and components
$
98,129

 
$
86,659

Work-in-process
97,826

 
92,427

Finished goods
202,686

 
185,680

 
$
398,641

 
$
364,766


Property, plant and equipment:
 
 
 
Property, plant and equipment
$
1,660,512

 
$
1,608,718

Less: Accumulated depreciation and amortization
(889,270
)
 
(857,725
)
 
$
771,242

 
$
750,993