Lessee, Operating Lease, Option To Extend, Number

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- Definition

Line of Credit Facility, Accounts Receivable Borrowing Base Percentage

+ References

No definition available.

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- Definition

Area of a real estate property.

+ References

No definition available.

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- Definition

The carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-SubTopic 20
-Section 50
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- 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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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
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-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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- Definition

Amount before accumulated depreciation of additions or improvements to assets held under a lease arrangement.

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

Discount rate used by lessee to determine present value of operating lease payments for lease that has not yet commenced.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918673-209980

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- Definition

Term of lessee's operating lease renewal for lease not yet commenced, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

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- Definition

Term of lessee's operating lease not yet commenced, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

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- Definition

Amount of lessee's undiscounted obligation for lease payment for operating lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918701-209980

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- Definition

Term of lessee's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

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

Amount of loss contingency liability expected to be resolved within one year or the normal operating cycle, if longer.

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

Cash payments to lessor's for use of assets under operating leases.

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

The fair value, as of the date of each statement of financial position presented, of securities that are restricted as collateral under letter of credit agreements, and that are reclassified and separately reported in the statement of financial position because the transferee has the right by contract or custom to sell or re-pledge them.

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- Definition

The amount of an asset, typically cash, provided to a counterparty to provide certain assurance of performance by the entity pursuant to the terms of a written or oral agreement, such as a lease.

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Commitments and Contingencies - Narrative (Details)		1 Months Ended	3 Months Ended
Commitments and Contingencies - Narrative (Details)	Jun. 30, 2017 USD ($)	Jun. 30, 2017 USD ($)	Mar. 31, 2021 USD ($) ft² renewal_option	Dec. 31, 2021 USD ($) ft² renewal_option	Dec. 31, 2020 USD ($)	Apr. 30, 2020 ft²	Jan. 31, 2020 ft²	Dec. 31, 2019 USD ($)
Long-term Purchase Commitment [Line Items]
Area of real estate property (in square feet) \| ft²				77,300
Remaining future commitment				$ 58,816,000
Indemnification agreement
Long-term Purchase Commitment [Line Items]
Accruals for expenses related to indemnification issues				0	$ 0			$ 0
Term Loan
Long-term Purchase Commitment [Line Items]
Current borrowing capacity	$ 10,000,000	$ 10,000,000
Revolving Credit Facility
Long-term Purchase Commitment [Line Items]
Current borrowing capacity	$ 5,000,000	$ 5,000,000
Accounts receivable borrowing base percentage	80.00%
Interest rate, stated percentage	4.25%	4.25%
Revolving Credit Facility \| Prime Rate
Long-term Purchase Commitment [Line Items]
Basis spread on variable rate		1.00%
Demand deposits \| Letter of Credit
Long-term Purchase Commitment [Line Items]
Cash deposit balance				$ 1,100,000	1,100,000
200-220 Penobscot
Long-term Purchase Commitment [Line Items]
Area of real estate property (in square feet) \| ft²				28,200
Number of options to extend lease term \| renewal_option				1
Renewal term				5 years
400 Penoscot
Long-term Purchase Commitment [Line Items]
Area of real estate property (in square feet) \| ft²				37,900
501 Chesapeake
Long-term Purchase Commitment [Line Items]
Area of real estate property (in square feet) \| ft²				11,200
Number of options to extend lease term \| renewal_option				1
Renewal term				5 years
101 Saginaw
Long-term Purchase Commitment [Line Items]
Area of real estate property (in square feet) \| ft²				29,900
Sublease
Long-term Purchase Commitment [Line Items]
Area of real estate property (in square feet) \| ft²						3,400	26,500
San Carlos, California
Long-term Purchase Commitment [Line Items]
Remaining future commitment				$ 40,000
San Carlos Space
Long-term Purchase Commitment [Line Items]
Area of real estate property (in square feet) \| ft²			36,593
Number of options to extend lease term \| renewal_option			1
Base rent			$ 2,500,000
Operating lease, lease not yet commenced, discount rate			3.00%
Lease term			10 years
Lease renewal term			5 years
Security deposit					500,000
San Carlos Space \| Leaseholds and Leasehold Improvements
Long-term Purchase Commitment [Line Items]
Leasehold improvements			$ 6,300,000
San Carlos Space \| Asset under Construction
Long-term Purchase Commitment [Line Items]
Leasehold improvements			2,700,000
Base rent			$ 400,000
Headquarters Redwood City
Long-term Purchase Commitment [Line Items]
Asset retirement obligations				$ 400,000	$ 200,000