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

No definition available.

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- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Topic 470
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Description of the frequency of periodic payments (monthly, quarterly, annual).

+ References

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-Name Accounting Standards Codification
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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

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- 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.

+ References

No definition available.

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- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
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- Definition

Description of the payment terms of the debt instrument (for example, whether periodic payments include principal and frequency of payments) and discussion about any contingencies associated with the payment.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition

Gross amount of debt extinguished.

+ References

No definition available.

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Balance Type:	debit
Period Type:	duration

- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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- Definition

The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer.

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- Definition

A fee charged for services from professionals such as doctors, lawyers and accountants. The term is often expanded to include other professions, for example, pharmacists charging to maintain a medicinal profile of a client or customer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-SubTopic 220
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- Definition

Write-off of amounts previously capitalized as debt issuance cost in an extinguishment of debt.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-Paragraph 2
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- Definition

Debt instrument first amendment terms.

+ References

No definition available.

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- Definition

Debt instrument minimum liquidity ratio financial covenant.

+ References

No definition available.

+ Details

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- Definition

Debt instrument prepayment premium percentage.

+ References

No definition available.

+ Details

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- Definition

Debt instrument second amendment terms.

+ References

No definition available.

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- Definition

Final payment percentage of original principal amount.

+ References

No definition available.

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- Definition

Minimum trailing period for revenue thresholds under minimum revenue financial covenant.

+ References

No definition available.

+ Details

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- Definition

Number of installments.

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No definition available.

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- Definition

Number of installments if achieving trailing revenue target and company so elects.

+ References

No definition available.

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DEBT- Additional Information (Detail) $ in Thousands				1 Months Ended	6 Months Ended	12 Months Ended
DEBT- Additional Information (Detail) $ in Thousands	Oct. 30, 2020 USD ($) Installment	Oct. 29, 2020 USD ($)	Dec. 30, 2019	Dec. 31, 2018 USD ($) Installment	Jun. 30, 2021 USD ($)	Dec. 31, 2018 USD ($)
SVB Term Loan
Debt Instrument [Line Items]
Total principal amount				$ 56,000	$ 58,000	$ 56,000
Debt maturity date				Dec. 01, 2023
Debt instrument interest rate percentage				6.30%		6.30%
Frequency of periodic payment				monthly
Number of installments \| Installment				36
Number of installments if achieving trailing revenue target and company so elects \| Installment				30
Debt instrument description					Beginning on December 1, 2020 (or June 1, 2021, if the Company achieves a trailing twelve-month revenue of at least a specified amount and elected to apply such later date), the Company would make thirty-six equal monthly payments of principal (or thirty equal payments, if the Company so elects).
Final payment percentage of original principal amount				3.15%		3.15%
Proceeds from term loan						$ 55,400
Legal and consulting fees						600
CRG Term Loan
Debt Instrument [Line Items]
Debt extinguishment loss					$ 2,400	2,400
Write-offs of unamortized debt discount and debt issuance costs					$ 300	$ 300
First Amendment to SVB Term Loan
Debt Instrument [Line Items]
Debt instrument first amendment terms					The First Amendment, among other things, amended the SVB Term Loan to (i) suspend testing of the minimum revenue financial covenant for the fiscal quarter ended December 31, 2019, (ii) provide for the minimum trailing twelve-month revenue thresholds under the minimum revenue financial covenant for periods ending on the last day of fiscal quarters in fiscal years subsequent to 2020 to be determined annually at the greater of (a) a 25% cushion to revenue forecasts provided by the Company to SVB and (b) 10% year-over-year annual growth, unless otherwise agreed, (iii) increase the minimum liquidity ratio financial covenant from 1.50:1.00 to 1.75:1.00 and (iv) increase the prepayment premium from 1.00% to 2.00% for amounts prepaid under the SVB Term Loan prior to the maturity date thereof, subject to certain exceptions.
Debt instrument minimum liquidity ratio financial covenant			150.00%		175.00%
Debt instrument prepayment premium percentage			1.00%		2.00%
Second Amendment to SVB Term Loan
Debt Instrument [Line Items]
Total principal amount	$ 58,000	$ 56,000
Debt maturity date	Oct. 01, 2025
Debt instrument interest rate percentage		6.30%
Frequency of periodic payment	monthly
Number of installments \| Installment	36
Debt instrument description	revise the thirty-six equal monthly payments of principal to begin on November 1, 2022
Final payment percentage of original principal amount	3.70%	3.15%
Debt instrument minimum liquidity ratio financial covenant	170.00%	175.00%
Debt instrument prepayment premium percentage	3.00%	2.00%
Debt instrument second amendment terms					The Second Amendment, among other things, amended the SVB Term Loan to (i) increase the term loan agreement principal amount from $56.0 million to $58.0 million, (ii) revise the thirty-six equal monthly payments of principal to begin on November 1, 2022, (iii) revise the maturity date to October 1, 2025, (iv) decrease the interest rate from a fixed rate of 6.3% to a floating rate of 2.4% above the Prime Rate, (v) increase the final payment from 3.15% of the original aggregate principal amount to 3.7% of the revised aggregate principal amount, (vi) revise the minimum trailing twelve-month revenue thresholds under the minimum revenue financial covenant for periods ending on the last day of fiscal quarters in fiscal years subsequent to 2020, (vii) decrease the minimum liquidity ratio financial covenant from 1.75:1.00 to 1.70:1.00, (viii) remove the minimum cash balance as a condition of the minimum revenue financial covenant and the minimum liquidity ratio financial covenant, and (ix) increase the prepayment premium from 2.00% to 3.00% for the first 30 months of the term for amounts prepaid under the SVB Term Loan prior to the maturity date thereof, subject to certain exceptions.
Minimum trailing period for revenue thresholds under minimum revenue financial covenant	12 months
Debt instrument final payment	$ 800
Second Amendment to SVB Term Loan \| Prime Rate
Debt Instrument [Line Items]
Debt instrument floating rate	2.40%