Line of Credit, Covenant Threshold, Borrowings Outstanding

No definition available.

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

- Definition

Line of Credit, Covenant Threshold, Intercompany Loans

+ References

No definition available.

+ Details

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

- Definition

Line of Credit, Covenant Threshold, Percentage of Commitments in Borrowings Outstanding

+ References

No definition available.

+ Details

Name:	crox_LineofCreditCovenantThresholdPercentageofCommitmentsinBorrowingsOutstanding
Namespace Prefix:	crox_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Maximum Capital Expenditures And Commitments

+ References

No definition available.

+ Details

Name:	crox_MaximumCapitalExpendituresAndCommitments
Namespace Prefix:	crox_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Minimum Fixed Charge Coverage Ratio

+ References

No definition available.

+ Details

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Namespace Prefix:	crox_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

+ Details

Name:	us-gaap_LettersOfCreditOutstandingAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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://www.xbrl.org/2003/role/presentationRef
-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://www.xbrl.org/2003/role/presentationRef
-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=6879938&loc=d3e572229-122910

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-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

+ 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
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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

Amount of stock repurchase plan authorized.

+ References

No definition available.

+ Details

Name:	us-gaap_StockRepurchaseProgramAuthorizedAmount1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Tier 1 Leverage Capital divided by average assets as defined in the regulations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 505
-Section 50
-Paragraph 1
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=84167132&loc=SL5958568-112826

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 505
-Section 50
-Paragraph 1H
-Subparagraph (c)(2)
-URI http://asc.fasb.org/extlink&oid=84167132&loc=d3e65071-112826

+ Details

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

- Details

Name:	us-gaap_DebtInstrumentAxis=crox_SeniorRevolvingCreditFacilityMember
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_AsiaPacificRevolvingCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

Name:	us-gaap_DebtInstrumentAxis=crox_ChinaMerchantBankCompanyFacilityCMBCFacilityMember
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Revolving Credit Facility and Bank Borrowings (Revolving Credit Facilities and Notes Payable) (Details)	Jun. 30, 2018 USD ($)	Jun. 30, 2018 CNY (¥)	Dec. 31, 2017 USD ($)
Line of Credit Facility [Line Items]
Amount allowed for repurchase under Amendment	$ 192,900,000
Senior Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Outstanding letters of credit	600,000
Revolving Credit Facility [Member] \| Senior Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Amount allowed for repurchase under Amendment	100,000,000
Maximum capital expenditures and commitments	50,000,000
Intercompany loans permitted	375,000,000
Borrowings outstanding threshold for financial covenant ratios	$ 40,000,000
Percentage of commitments in average outstanding borrowings (percent)	40.00%	40.00%
Minimum fixed charge coverage ratio	110.00%	110.00%
Leverage ratio	200.00%	200.00%
Outstanding borrowings on the Facility	$ 0
Current borrowing capacity	100,000,000
Available borrowing capacity	99,400,000		$ 99,400,000
Revolving Credit Facility [Member] \| HSBC Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Current borrowing capacity	9,100,000	¥ 60,000,000
Revolving Loan Facility [Member] \| HSBC Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Outstanding borrowings on the Facility	0		$ 0
Current borrowing capacity	6,000,000	40,000,000
Revolving Loan Facility [Member] \| China Merchant Bank Company Facility (CMBC Facility) [Member]
Line of Credit Facility [Line Items]
Outstanding borrowings on the Facility	0
Current borrowing capacity	$ 4,500,000	¥ 30,000,000