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Balance Sheet Details (Details) - USD ($) $ in Thousands | 1 Months Ended | 3 Months Ended |
--- | --- | --- | ---
Jan. 31, 2018 | Sep. 30, 2018 | Sep. 30, 2017 | Jun. 30, 2018
Accounts Receivable |  |  |  |
Accounts receivable |  | $ 233,778 |  | $ 221,240
Less allowance for doubtful accounts |  | (11,608) |  | (10,496)
Total |  | 222,170 |  | 210,744
Inventories |  |  |  |
Raw materials |  | 168,807 |  | 156,612
Work-in-process |  | 89,095 |  | 89,468
Finished goods |  | 86,072 |  | 67,472
Total |  | 343,974 |  | 313,552
Property and Equipment |  |  |  |
Property and equipment, gross |  | 254,885 |  | 246,836
Less accumulated depreciation and amortization |  | (135,121) |  | (131,312)
Property and equipment, net |  | 119,764 |  | 115,524
Depreciation expense |  | 16,200 | $ 5,100 |
Mexican government |  |  |  |
Contract with Mexican government |  |  |  |
Term of agreement | 2 years |  |  |
Net book value of certain fixed assets transferred | $ 29,500 |  |  |
Recognized amortization expense |  | 3,700 |  |
Prepaid expenses and other current assets | Mexican government |  |  |  |
Contract with Mexican government |  |  |  |
Remaining cost to obtain the contract |  | 14,700 |  |
Other assets | Mexican government |  |  |  |
Contract with Mexican government |  |  |  |
Remaining cost to obtain the contract |  | 4,200 |  |
Land |  |  |  |
Property and Equipment |  |  |  |
Property and equipment, gross |  | 16,569 |  | 16,569
Buildings, civil works and improvements |  |  |  |
Property and Equipment |  |  |  |
Property and equipment, gross |  | 56,533 |  | 56,585
Leasehold improvements |  |  |  |
Property and Equipment |  |  |  |
Property and equipment, gross |  | 9,772 |  | 9,681
Equipment and tooling |  |  |  |
Property and Equipment |  |  |  |
Property and equipment, gross |  | 123,317 |  | 117,294
Furniture and fixtures |  |  |  |
Property and Equipment |  |  |  |
Property and equipment, gross |  | 3,341 |  | 3,331
Computer equipment |  |  |  |
Property and Equipment |  |  |  |
Property and equipment, gross |  | 19,229 |  | 18,759
Computer software |  |  |  |
Property and Equipment |  |  |  |
Property and equipment, gross |  | 19,665 |  | 19,509
Computer software implementation in process |  |  |  |
Property and Equipment |  |  |  |
Property and equipment, gross |  | 5,256 |  | 4,318
Construction in process |  |  |  |
Property and Equipment |  |  |  |
Property and equipment, gross |  | $ 1,203 |  | $ 790

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