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v3.19.3.a.u2

Short-term Debt - CTBC Bank (Details) | 1 Months Ended |  |  |  |
--- | --- | --- | --- | --- | ---
Jun. 30, 2019 USD ($) | Jan. 31, 2018 USD ($) | Dec. 31, 2019 USD ($) | Jun. 30, 2019 TWD ($) | Aug. 31, 2018 USD ($) | Jan. 31, 2018 TWD ($)
Short-term Debt [Line Items] |  |  |  |  |  |
Short-term debt | $ 23,647,000 |  | $ 23,250,000 |  |  |
CTBC Bank | CTBC 2018 Facility |  |  |  |  |  |
Short-term Debt [Line Items] |  |  |  |  |  |
Credit facility, maximum borrowing capacity |  | $ 50,000,000.0 |  |  | $ 40,000,000.0 |
Secured debt | Term loan | CTBC Credit Facility |  |  |  |  |  |
Short-term Debt [Line Items] |  |  |  |  |  |
Short-term debt | $ 22,531,000 |  | 23,250,000 |  |  |
Secured debt | CTBC Bank | Term loan | CTBC Credit Facility |  |  |  |  |  |
Short-term Debt [Line Items] |  |  |  |  |  |
Credit facility, term | 12 months | 12 months |  |  |  |
Credit facility, maximum borrowing capacity | $ 22,500,000 | $ 23,600,000 |  | $ 700,000,000.0 |  | $ 700,000,000.0
Customs Bond | CTBC Bank | Term loan | CTBC Credit Facility, 12 Month, Up To 0.50% Interest |  |  |  |  |  |
Short-term Debt [Line Items] |  |  |  |  |  |
Credit facility, term | 12 months | 12 months |  |  |  |
Credit facility, maximum borrowing capacity | $ 3,200,000 | $ 3,400,000 |  | $ 100,000,000.0 |  | $ 100,000,000.0
Interest rate, stated percentage | 0.50% | 0.50% |  | 0.50% |  | 0.50%
Customs Bond | CTBC Bank | Term loan | CTBC Credit Facility, 12 Month, Up To 0.25% Interest |  |  |  |  |  |
Short-term Debt [Line Items] |  |  |  |  |  |
Credit facility, term |  | 12 months |  |  |  |
Credit facility, maximum borrowing capacity |  | $ 50,500,000 |  |  |  | $ 1,500,000,000.0
Customs Bond | CTBC Bank | Term loan | CTBC Credit Facility, 180Day, Up To 100% Of Eligible Accounts Receivable, Between 0.30% And 0.50% Interest |  |  |  |  |  |
Short-term Debt [Line Items] |  |  |  |  |  |
Credit facility, term | 180 days |  |  |  |  |
Credit facility, maximum borrowing capacity | $ 48,200,000 |  |  | $ 1,500,000,000.0 |  |
Percent of eligible accounts receivable | 100.00% |  |  | 100.00% |  |
Customs Bond | CTBC Bank | Line of credit | CTBC Credit Facility |  |  |  |  |  |
Short-term Debt [Line Items] |  |  |  |  |  |
Credit facility, maximum borrowing capacity | $ 50,000,000.0 |  |  |  |  |
Customs Bond | CTBC Bank | Line of credit | CTBC Credit Facility, 12 Month, Up To 100% Of Eligible Accounts Receivable, Between 0.30% And 0.50% Interest |  |  |  |  |  |
Short-term Debt [Line Items] |  |  |  |  |  |
Credit facility, term | 12 months |  |  |  |  |
Credit facility, maximum borrowing capacity | $ 50,000,000.0 |  |  |  |  |
Percent of eligible accounts receivable | 100.00% |  |  | 100.00% |  |
Revolving Credit Facility | Line of credit | CTBC Credit Facility |  |  |  |  |  |
Short-term Debt [Line Items] |  |  |  |  |  |
Credit facility, remaining borrowing capacity |  |  | $ 26,700,000 |  |  |
CTBC's Established NTD Interest Rate | Secured debt | CTBC Bank | Term loan | CTBC Credit Facility |  |  |  |  |  |
Short-term Debt [Line Items] |  |  |  |  |  |
Credit facility, basis spread on variable rate (as a percent) | 0.25% | 0.25% |  |  |  |
CTBC's Established NTD Interest Rate | Customs Bond | CTBC Bank | Term loan | CTBC Credit Facility, 12 Month, Up To 0.25% Interest |  |  |  |  |  |
Short-term Debt [Line Items] |  |  |  |  |  |
Credit facility, basis spread on variable rate (as a percent) |  | 0.25% |  |  |  |
Minimum | CTBC's Established NTD Interest Rate | Customs Bond | CTBC Bank | Term loan | CTBC Credit Facility, 180Day, Up To 100% Of Eligible Accounts Receivable, Between 0.30% And 0.50% Interest |  |  |  |  |  |
Short-term Debt [Line Items] |  |  |  |  |  |
Credit facility, basis spread on variable rate (as a percent) | 0.30% |  |  |  |  |
Minimum | CTBC's Established USD Interest Rate | Customs Bond | CTBC Bank | Line of credit | CTBC Credit Facility, 12 Month, Up To 100% Of Eligible Accounts Receivable, Between 0.30% And 0.50% Interest |  |  |  |  |  |
Short-term Debt [Line Items] |  |  |  |  |  |
Credit facility, basis spread on variable rate (as a percent) | 0.30% |  |  |  |  |
Maximum | CTBC Bank |  |  |  |  |  |
Short-term Debt [Line Items] |  |  |  |  |  |
Interest rate (as a percent) | 0.93% |  | 0.91% | 0.93% |  |
Maximum | CTBC's Established NTD Interest Rate | Customs Bond | CTBC Bank | Term loan | CTBC Credit Facility, 180Day, Up To 100% Of Eligible Accounts Receivable, Between 0.30% And 0.50% Interest |  |  |  |  |  |
Short-term Debt [Line Items] |  |  |  |  |  |
Credit facility, basis spread on variable rate (as a percent) | 0.50% |  |  |  |  |
Maximum | CTBC's Established USD Interest Rate | Customs Bond | CTBC Bank | Line of credit | CTBC Credit Facility, 12 Month, Up To 100% Of Eligible Accounts Receivable, Between 0.30% And 0.50% Interest |  |  |  |  |  |
Short-term Debt [Line Items] |  |  |  |  |  |
Credit facility, basis spread on variable rate (as a percent) | 0.50% |  |  |  |  |
Term loan | Secured debt | CTBC Bank | CTBC Credit Facility |  |  |  |  |  |
Short-term Debt [Line Items] |  |  |  |  |  |
Collateral amount |  |  | $ 25,600,000 |  |  |

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