Borrowings - 2018 Term Loan (Details) - USD ($) |
3 Months Ended | |||
|---|---|---|---|---|
Sep. 28, 2018 |
Mar. 31, 2020 |
Dec. 31, 2019 |
Mar. 31, 2019 |
|
| Debt Instrument [Line Items] | ||||
| Non-current restricted cash | $ 3,570,000 | $ 3,867,000 | $ 28,040,000 | |
| Term loan | 2018 Term Loan | ||||
| Debt Instrument [Line Items] | ||||
| Debt term (in years) | 3 years | |||
| Principal amount | $ 60,000,000.0 | |||
| Non-current restricted cash | 3,600,000 | |||
| Minimum aggregate principal payment | 5,000,000 | |||
| Integral multiple payments in excess thereof | $ 1,000,000 |
| X | ||||||||||
- Definition Amount of the total principal payments made during the annual reporting period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Face (par) amount of debt instrument at time of issuance. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Definition Amount of the required periodic payments applied to principal. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. No definition available.
|
| X | ||||||||||
- Definition Amount of cash restricted as to withdrawal or usage, classified as noncurrent. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|