Line of Credit Facility, Accordion Feature, Increase Limit

No definition available.

Name:	crox_LineOfCreditFacilityAccordionFeatureIncreaseLimit
Namespace Prefix:	crox_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Line of Credit Facility, Covenant Terms, Maximum Leverage Coverage Ratio

+ References

No definition available.

+ Details

Name:	crox_LineOfCreditFacilityCovenantTermsMaximumLeverageCoverageRatio
Namespace Prefix:	crox_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant

- Definition

Line of Credit Facility, Covenant Terms, Minimum Borrowing Capacity Available

+ References

No definition available.

+ Details

Name:	crox_LineOfCreditFacilityCovenantTermsMinimumBorrowingCapacityAvailable
Namespace Prefix:	crox_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Line of Credit Facility, Covenant Terms, Minimum Interest Coverage Ratio

+ References

No definition available.

+ Details

Name:	crox_LineOfCreditFacilityCovenantTermsMinimumInterestCoverageRatio
Namespace Prefix:	crox_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant

- Definition

Line Of Credit Facility, Covenant Terms, Stock Repurchase Threshold, Maximum Leverage Coverage Ratio

+ References

No definition available.

+ Details

Name:	crox_LineOfCreditFacilityCovenantTermsStockRepurchaseThresholdMaximumLeverageCoverageRatio
Namespace Prefix:	crox_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant

- 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

Weighted average interest rate of debt outstanding.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtWeightedAverageInterestRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- 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

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

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

- 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

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

+ Details

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

- Definition

The cash inflow from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with maturities due beyond one year or the operating cycle, if longer.

+ 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

+ Details

Name:	us-gaap_ProceedsFromLongTermLinesOfCredit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_RevolvingCreditFacilityMember
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_DebtInstrumentAxis=crox_SeniorRevolvingCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	crox_DebtInstrumentCovenantPeriodAxis=crox_DebtInstrumentCovenantPeriodOneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	crox_DebtInstrumentCovenantPeriodAxis=crox_DebtInstrumentCovenantPeriodTwoMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	crox_DebtInstrumentCovenantPeriodAxis=crox_DebtInstrumentCovenantPeriodThreeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	crox_DebtInstrumentCovenantPeriodAxis=crox_DebtInstrumentCovenantPeriodFourMember
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_LondonInterbankOfferedRateLIBORMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- 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_DebtInstrumentAxis=crox_AsiaPacificRevolvingCreditFacilityMember
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:

Revolving Credit Facility and Bank Borrowings (Revolving Credit Facilities and Notes Payable) (Details)	12 Months Ended
	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Jul. 31, 2019 USD ($)
Line of Credit Facility [Line Items]
Borrowings under credit facility	$ 0	$ 0
Revolving credit facilities
Line of Credit Facility [Line Items]
Weighted average interest rate (percent)	3.96%	4.69%
Revolving credit facilities \| Senior Revolving Credit Facility
Line of Credit Facility [Line Items]
Current borrowing capacity	$ 450,000,000.0		$ 450,000,000.0
Additional borrowing capacity available under revolving credit facility			$ 150,000,000.0
Minimum interest coverage ratio			4.00
Minimum borrowing capacity available for certain acquisitions	40,000,000.0
Outstanding borrowings on the Facility	205,000,000.0
Available borrowing capacity	$ 240,400,000	$ 129,400,000
Revolving credit facilities \| Senior Revolving Credit Facility \| From September 30, 2019 to September 30, 2020
Line of Credit Facility [Line Items]
Maximum coverage ratio			3.50
Revolving credit facilities \| Senior Revolving Credit Facility \| From December 31, 2020 and thereafter
Line of Credit Facility [Line Items]
Maximum coverage ratio			3.25
Revolving credit facilities \| Senior Revolving Credit Facility \| In event of certain permitted acquisitions
Line of Credit Facility [Line Items]
Maximum coverage ratio			4.00
Revolving credit facilities \| Senior Revolving Credit Facility \| In event of stock repurchases
Line of Credit Facility [Line Items]
Aggregate stock permitted			0.25
Revolving credit facilities \| Senior Revolving Credit Facility \| Federal funds rate
Line of Credit Facility [Line Items]
Margin on variable rate (percent)	0.25%
Revolving credit facilities \| Senior Revolving Credit Facility \| LIBOR
Line of Credit Facility [Line Items]
Margin on variable rate (percent)	1.00%
Revolving credit facilities \| Senior Revolving Credit Facility \| LIBOR \| Minimum
Line of Credit Facility [Line Items]
Margin on variable rate (percent)	1.00%
Revolving credit facilities \| Senior Revolving Credit Facility \| LIBOR \| Maximum
Line of Credit Facility [Line Items]
Margin on variable rate (percent)	1.875%
Revolving credit facilities \| Asia Pacific Revolving Credit Facility
Line of Credit Facility [Line Items]
Outstanding borrowings on the Facility	$ 0	$ 0
Letters of credit \| Senior Revolving Credit Facility
Line of Credit Facility [Line Items]
Outstanding borrowings on the Facility	$ 4,600,000