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Balance Sheet Details | 6 Months Ended
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Dec. 31, 2019
Balance Sheet Details |
Balance Sheet Details | 3. Balance Sheet Details ​ The following tables provide details of selected balance sheet accounts (in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | June 30, | ​ | December 31,
Accounts receivable, net |  | 2019 |  | 2019
Accounts receivable | ​ | $ | 253,504 | ​ | $ | 272,285
Less allowance for doubtful accounts | ​ |  | (15,064) | ​ |  | (14,900)
Total | ​ | $ | 238,440 | ​ | $ | 257,385
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | June 30, | ​ | December 31,
Inventories | ​ | 2019 | ​ | 2019
Raw materials | ​ | $ | 143,697 | ​ | $ | 138,915
Work-in-process | ​ |  | 67,897 | ​ |  | 65,458
Finished goods | ​ |  | 62,117 | ​ |  | 48,162
Total | ​ | $ | 273,711 | ​ | $ | 252,535
​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | June 30, | ​ | December 31,
Property and equipment, net |  | 2019 |  | 2019
Land | ​ | $ | 16,564 | ​ | $ | 16,569
Buildings, civil works and improvements | ​ | ​ | 55,391 | ​ | ​ | 55,747
Leasehold improvements | ​ | ​ | 8,311 | ​ |  | 8,734
Equipment and tooling | ​ | ​ | 128,428 | ​ | ​ | 135,858
Furniture and fixtures | ​ | ​ | 3,190 | ​ | ​ | 2,953
Computer equipment | ​ | ​ | 18,733 | ​ | ​ | 19,454
Computer software | ​ | ​ | 20,146 | ​ | ​ | 20,140
Computer software implementation in process | ​ | ​ | 8,563 | ​ | ​ | 10,156
Construction in process | ​ |  | 5,760 | ​ |  | 6,400
Total | ​ | ​ | 265,086 | ​ |  | 276,011
Less accumulated depreciation and amortization | ​ | ​ | (137,701) | ​ |  | (146,423)
Property and equipment, net | ​ | $ | 127,385 | ​ | $ | 129,588
​ Depreciation and amortization expense for property and equipment was $5.2 million and $5.4 million for the three months ended December 31, 2018 and 2019, respectively, and $10.3 million and $10.5 million for the six months ended December 31, 2018 and 2019, respectively.

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- Definition The entire disclosure for supplemental balance sheet disclosures, including descriptions and amounts for assets, liabilities, and equity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -URI http://asc.fasb.org/topic&trid=2122208 + Details
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