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Significant Customer and Geographic Information (Tables) | 12 Months Ended
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Dec. 31, 2019
Risks and Uncertainties [Abstract] |
Schedules of Concentration of Risk, by Risk Factor [Table Text Block] | Customers comprising greater than 10% of net revenues for each of the periods presented are as follows:
| Years Ended December 31,
| 2019 |  | 2018 |  | 2017
Percentage of total net revenue |  |  |  |  |
Customer A (direct) | 14 | % |  | 18 | % |  | 25 | %
Balances greater than 10% of accounts receivable, based on the Company's billings to the contract manufacturer customers, are as follows:
| December 31,
| 2019 |  | 2018
Percentage of gross accounts receivable |  |  |
Customer B | 10 | % |  | 10 | %
Suppliers comprising greater than 10% of total inventory purchases are as follows:
| Years ended December 31,
| 2019 |  | 2018 |  | 2017
Vendor A | 17 | % |  | 16 | % |  | 21 | %
Vendor B | 15 | % |  | 13 | % |  | 11 | %
Vendor C | 14 | % |  | 19 | % |  | 16 | %
Vendor D | 13 | % |  | 15 | % |  | 15 | %
Vendor E | * |  |  | * |  |  | 14 | %
Revenue from External Customers by Geographic Areas [Table Text Block] | The Company's consolidated net revenues by geographic area based on ship-to location are as follows (in thousands):
| Years Ended December 31,
| 2019 |  | 2018 |  | 2017
| Amount |  | % of total net revenue |  | Amount |  | % of total net revenue |  | Amount |  | % of total net revenue
Asia | $ | 265,122 |  |  | 84 | % |  | $ | 312,877 |  |  | 81 | % |  | $ | 372,103 |  |  | 89 | %
United States | 13,984 |  |  | 4 | % |  | 18,060 |  |  | 5 | % |  | 10,829 |  |  | 2 | %
Rest of world | 38,074 |  |  | 12 | % |  | 54,060 |  |  | 14 | % |  | 37,386 |  |  | 9 | %
Total | $ | 317,180 |  |  | 100 | % |  | $ | 384,997 |  |  | 100 | % |  | $ | 420,318 |  |  | 100 | %
The products shipped to individual countries representing greater than 10% of net revenue for each of the periods presented are as follows:
| Years Ended December 31,
| 2019 |  | 2018 |  | 2017
Percentage of total net revenue |  |  |  |  |
China | 60 | % |  | 63 | % |  | 71 | %
Long-lived Assets by Geographic Areas [Table Text Block] | Long-lived assets, which consists of property and equipment, net, leased right-of-use assets, intangible assets, net, and goodwill, by geographic area are as follows (in thousands):
| As of December 31,
| 2019 |  | 2018(1)
| Amount |  | % of total |  | Amount |  | % of total
United States | $ | 385,302 |  |  | 85 | % |  | $ | 426,321 |  |  | 85 | %
Singapore | 63,556 |  |  | 14 | % |  | 71,945 |  |  | 14 | %
Rest of world | 5,034 |  |  | 1 | % |  | 3,368 |  |  | 1 | %
Total | $ | 453,892 |  |  | 100 | % |  | $ | 501,634 |  |  | 100 | %
_____________ (1) Amounts do not include leased right-of-use assets in the prior period due to the adoption of ASC 842 under the modified retrospective method with a cumulative effect adjustment to accumulated deficit as of January 1, 2019.

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- Definition Tabular disclosure of long-lived assets, excluding financial instruments, long-term customer relationships of a financial institution, mortgage rights, deferred policy acquisition costs, and deferred tax assets, by geographic areas located in the entity's country of domicile and foreign countries in which the entity holds assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -Subparagraph b -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e9038-108599 + Details
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