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Debt Obligations - Additional Information (Details) - USD ($)				12 Months Ended
	Jul. 24, 2020	Dec. 12, 2019	Sep. 13, 2016	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Sep. 21, 2018	Jun. 30, 2018	Sep. 22, 2017	Aug. 31, 2015
Line Of Credit Facility [Line Items]
Repayment of outstanding loan				$ 0	$ 76,000,000	$ 2,000,000
MegaChips
Line Of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity			$ 30,000,000.0
Interest rate			0.09%
Revolving line of credit closing date				Dec. 31, 2020
Minimum | MUFG
Line Of Credit Facility [Line Items]
Debt instrument, maturity						1 month
Interest rate						1.01%
Maximum | MUFG
Line Of Credit Facility [Line Items]
Debt instrument, maturity						1 year
Interest rate						4.07%
Revolving Line of Credit | MUFG
Line Of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity								$ 50,000,000.0		$ 20,000,000.0
Loan Amount						$ 139,000,000.0
Repayment of outstanding loan	$ 76,000,000.0
Line of credit prepaid amount	12,000,000.0
Line of credit, prepayment penalties	$ 100,000
Revolving Line of Credit | SMBC
Line Of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity									$ 20,000,000.0
Repayment of outstanding loan						$ 2,000,000.0
Line of credit facility closing date				2020-09
Revolving Line of Credit | MegaChips
Line Of Credit Facility [Line Items]
Repayment of outstanding loan		$ 3,000,000.0
Revolving Line of Credit | Maximum | SMBC
Line Of Credit Facility [Line Items]
Debt instrument, principal amount							$ 20,000,000.0

X

- Definition

Line of credit facility closing date.

+ References

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- Definition

Line of credit facility prepaid amount.

+ References

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X

- Definition

Line of credit, prepayment penalties.

+ References

No definition available.

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- Definition

Revolving line of credit closing date.

+ References

No definition available.

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X

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

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X

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

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X

- Definition

Period remaining on line of credit facility before it terminates, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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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.

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No definition available.

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

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X

- Definition

The carrying value as of the balance sheet date of the current portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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X

- Definition

Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

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