Debt Instrument, Maturity Period

No definition available.

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- Definition

Line of Credit Facility, Available Increase to Maximum Borrowing Capacity

+ References

No definition available.

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

Line of Credit Facility, Covenant Terms, Interest Rate Terms, Amount Outstanding

+ References

No definition available.

+ Details

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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.

+ Details

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- Definition

Amount of gain (loss) on termination of lease before expiration of lease term.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 40
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=77888415&loc=SL77918607-209975

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Period Type:	duration

- Definition

Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

+ References

No definition available.

+ Details

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Balance Type:	debit
Period Type:	duration

- 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
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918673-209980

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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions 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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(16))
-URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910

+ Details

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Balance Type:	credit
Period Type:	instant

- 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.

+ References

+ Details

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Balance Type:	credit
Period Type:	instant

- 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

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

+ References

No definition available.

+ Details

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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.

+ Details

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- Definition

Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3255-108585

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(f))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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Balance Type:	debit
Period Type:	duration

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Commitments and Contingencies - Additional Information (Details) - USD ($)		3 Months Ended		6 Months Ended		12 Months Ended
	Sep. 04, 2020	Jul. 31, 2020	Jul. 31, 2019	Jul. 31, 2020	Jul. 31, 2019	Jan. 31, 2020
Loss Contingencies [Line Items]
Proceeds from revolving line of credit				$ 43,000,000	$ 0
Operating lease renewal term option		5 years		5 years
Rent expense		$ 4,500,000	$ 3,800,000	$ 9,500,000	$ 7,200,000
Lease exit costs						$ (4,000,000.0)
General and administrative expense \| San Mateo and Pleasanton, California
Loss Contingencies [Line Items]
Lease exit costs		7,600,000		7,600,000
Revolving Credit Facility
Loss Contingencies [Line Items]
Maximum borrowing capacity		50,000,000.0		50,000,000.0		50,000,000.0
Current borrowing capacity		2,300,000		2,300,000		46,500,000
Revolving Credit Facility \| Subsequent Event
Loss Contingencies [Line Items]
Maximum borrowing capacity	$ 50,000,000.0
Amount of right to add revolving commitments	$ 50,000,000.0
Commitment fee percentage	0.25%
Revolving Credit Facility \| Debt Convertible At Company Option
Loss Contingencies [Line Items]
Maximum borrowing capacity		15,000,000.0		$ 15,000,000.0
Maturity period of debt instrument				48 months
Revolving Credit Facility \| LIBOR \| Subsequent Event
Loss Contingencies [Line Items]
Variable interest rate	1.75%
Revolving Credit Facility \| Base Rate \| Subsequent Event
Loss Contingencies [Line Items]
Variable interest rate	0.75%
Revolving Line Of Credit And Term Out Loan \| Debt Instrument, Redemption, Period One \| Maximum
Loss Contingencies [Line Items]
Amount of borrowings that effect the interest rate		5,000,000.0		$ 5,000,000.0
Revolving Line Of Credit And Term Out Loan \| Debt Instrument, Redemption, Period Two \| Maximum
Loss Contingencies [Line Items]
Amount of borrowings that effect the interest rate		10,000,000.0		10,000,000.0
Revolving Line Of Credit And Term Out Loan \| Debt Instrument, Redemption, Period Two \| Minimum
Loss Contingencies [Line Items]
Amount of borrowings that effect the interest rate		5,000,000.0		5,000,000.0
Revolving Line Of Credit And Term Out Loan \| Debt Instrument, Redemption, Period Three \| Minimum
Loss Contingencies [Line Items]
Amount of borrowings that effect the interest rate		10,000,000.0		$ 10,000,000.0
Revolving Line Of Credit And Term Out Loan \| Prime Rate \| Debt Instrument, Redemption, Period One
Loss Contingencies [Line Items]
Variable interest rate				0.50%
Revolving Line Of Credit And Term Out Loan \| Prime Rate \| Debt Instrument, Redemption, Period Three
Loss Contingencies [Line Items]
Variable interest rate				0.50%
Standby Letters of Credit \| Subsequent Event
Loss Contingencies [Line Items]
Maximum borrowing capacity	$ 40,000,000.0
Standby Letters of Credit \| Office Lease Facilities
Loss Contingencies [Line Items]
Standby letters of credit		$ 4,700,000		$ 4,700,000		$ 3,500,000
Standby Letters of Credit \| Office Lease Facilities \| Subsequent Event
Loss Contingencies [Line Items]
Standby letters of credit	$ 4,700,000