Represents the line of credit facility borrowing capacity multiply factor for first year.

No definition available.

Name:	crwd_LineOfCreditFacilityBorrowingCapacityMultipleFactorForFirstFiscalYear
Namespace Prefix:	crwd_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the line of credit facility borrowing capacity multiply factor for second year.

+ References

No definition available.

+ Details

Name:	crwd_LineOfCreditFacilityBorrowingCapacityMultipleFactorForSecondFiscalYear
Namespace Prefix:	crwd_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents information pertaining to incremental borrowing facility.

+ References

No definition available.

+ Details

Name:	crwd_LineOfCreditFacilityIncrementalBorrowingCapacity
Namespace Prefix:	crwd_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Represents the line of credit facility borrowing capacity multiply factor after second year.

+ References

No definition available.

+ Details

Name:	crwd_LineofCreditFacilityBorrowingCapacityMultipleFactorAfterSecondFiscalYear
Namespace Prefix:	crwd_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

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

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- 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

Name:	us-gaap_LineOfCredit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

+ References

No definition available.

+ Details

Name:	us-gaap_LineOfCreditFacilityCommitmentFeePercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- 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

Name:	us-gaap_LineOfCreditFacilityLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- 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

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_LetterOfCreditMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=crwd_SwinglineFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=crwd_EurodollarLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=us-gaap_LondonInterbankOfferedRateLIBORMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=crwd_AlternateBaseRateLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=us-gaap_FederalFundsEffectiveSwapRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=us-gaap_EurodollarMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Secured Revolving Credit Facility (Details)	1 Months Ended
Secured Revolving Credit Facility (Details)	Apr. 30, 2019 USD ($) modules	Jul. 31, 2020 USD ($)	Jan. 31, 2020 USD ($)
Line of Credit Facility [Line Items]
Amount outstanding		$ 0	$ 0
Minimum
Line of Credit Facility [Line Items]
Commitment fee (as a percent)	0.20%
Maximum
Line of Credit Facility [Line Items]
Commitment fee (as a percent)	0.30%
Revolving line of credit
Line of Credit Facility [Line Items]
Maximum borrowing capacity	$ 150,000,000.0
Incremental borrowing facility	$ 75,000,000.0
Borrowing facility multiple factor - first year \| modules	6
Borrowing facility multiple factor - second year \| modules	5
Borrowing facility multiple factor - thereafter \| modules	4
Letter of credit
Line of Credit Facility [Line Items]
Maximum borrowing capacity	$ 10,000,000.0
Swingline
Line of Credit Facility [Line Items]
Maximum borrowing capacity	$ 10,000,000.0
Eurodollar Loans \| LIBOR \| Minimum
Line of Credit Facility [Line Items]
Margin (as a percent)	2.50%
Eurodollar Loans \| LIBOR \| Maximum
Line of Credit Facility [Line Items]
Margin (as a percent)	3.00%
ABR Loans \| Federal funds rate
Line of Credit Facility [Line Items]
Margin (as a percent)	0.50%
ABR Loans \| Eurodollar rate
Line of Credit Facility [Line Items]
Margin (as a percent)	1.00%
ABR Loans \| Eurodollar rate \| Minimum
Line of Credit Facility [Line Items]
Margin (as a percent)	1.50%
ABR Loans \| Eurodollar rate \| Maximum
Line of Credit Facility [Line Items]
Margin (as a percent)	2.00%