Subfacility for swingline loans maximum borrowing percentage of aggregate revolver commitments.

No definition available.

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- Definition

Debt Covenant, Consolidated Fixed Charge Coverage Ratio

+ References

No definition available.

+ Details

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- Definition

Debt Instrument, Interest Rate, Increase (Decrease) in Event of Default

+ References

No definition available.

+ Details

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Namespace Prefix:	ccrn_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Debt Instrument, Prepayment Penalty

+ References

No definition available.

+ Details

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Namespace Prefix:	ccrn_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Letters of Credit Rolled and Issued Under New Debt Instrument

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Line Of Credit Facility, Sub Facility For Swingline Loans

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Line of credit, subfacility for standby letters of credit.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Line of Credit Facility, Additional Capacity

+ References

No definition available.

+ Details

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

- Definition

Line of Credit Facility, Periodic Payment, Percentage of Principal, First Four Installments

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Line of Credit Facility, Periodic Payment, Percentage of Principal, Next Eight Installments

+ References

No definition available.

+ Details

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Line of Credit Facility, Periodic Payment, Percentage of Principal, Remaining Installments

+ References

No definition available.

+ Details

Name:	ccrn_LineofCreditFacilityPeriodicPaymentPercentageofPrincipalRemainingInstallments
Namespace Prefix:	ccrn_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of Financial Covenants

+ References

No definition available.

+ Details

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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

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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

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

- Definition

Percentage of principal amount of debt redeemed.

+ References

No definition available.

+ Details

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

- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 50
-Section 40
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=49170532&loc=d3e12317-112629

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 50
-Section 40
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=49170532&loc=d3e12355-112629

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

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

+ References

No definition available.

+ Details

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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

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
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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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 available but unused credit capacity under the credit facility.

+ References

No definition available.

+ Details

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Indebtedness divided by net capital.

+ References

No definition available.

+ Details

Name:	us-gaap_RatioOfIndebtednessToNetCapital1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:pureItemType
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Period Type:	instant

- Details

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- Details

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DEBT - Narrative (Details)		3 Months Ended		6 Months Ended		12 Months Ended
DEBT - Narrative (Details)	Jun. 22, 2016 USD ($)	Jun. 30, 2016 USD ($)	Jun. 30, 2015 USD ($)	Jun. 30, 2016 USD ($) financial_covenant	Jun. 30, 2015 USD ($)	Dec. 31, 2015 USD ($)
Debt Instrument [Line Items]
Prepayment penalty	$ 600,000
Loss on early extinguishment of debt		$ 1,568,000	$ 0	$ 1,568,000	$ 0
Second Lien Term Loan [Member]
Debt Instrument [Line Items]
Loss on early extinguishment of debt		$ 1,600,000
Credit Agreement [Member]
Debt Instrument [Line Items]
Interest rate increase (decrease) (percent)				2.00%
Quarterly commitment fee on the average daily unused portion (percent)				0.30%
Number of financial covenants \| financial_covenant				2
Credit Agreement [Member] \| Senior Debt [Member]
Debt Instrument [Line Items]
Credit facility maximum borrowing capacity	$ 40,000,000.0
Percentage of principal payment for first four installments	1.25%
Percentage of principal payment for next eight installments	1.875%
Percentage of principal payment for remaining installments	2.50%
Credit Agreement [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Consolidated Fixed Charge Coverage Ratio		1.50		1.50
Credit Agreement [Member] \| LIBOR [Member] \| Senior Debt [Member]
Debt Instrument [Line Items]
Interest margin				2.25%
Revolving Credit Facility [Member] \| First Lien Loan Agreement [Member]
Debt Instrument [Line Items]
Credit facility maximum borrowing capacity						$ 85,000,000.0
Subfacility loans percentage up to aggregate revolver commitments (percent)						10.00%
Line of credit, subfacility for standby letters of credit						$ 35,000,000.0
Letters of credit rolled and issued under new facility	$ 23,100,000
Revolving Credit Facility [Member] \| Second Lien Term Loan [Member] \| Subordinated Debt [Member]
Debt Instrument [Line Items]
Credit facility maximum borrowing capacity						$ 30,000,000.0
Line of credit facility, term (in years)						5 years
Revolving Credit Facility [Member] \| Second Lien Term Loan [Member] \| Period July 1, 2015 through June 30, 2016 [Member] \| Subordinated Debt [Member]
Debt Instrument [Line Items]
Percentage of principal amount redeemed						103.00%
Revolving Credit Facility [Member] \| Second Lien Term Loan [Member] \| Period July 1, 2016 through June 30, 2017 [Member] \| Subordinated Debt [Member]
Debt Instrument [Line Items]
Percentage of principal amount redeemed						102.00%
Revolving Credit Facility [Member] \| Second Lien Term Loan [Member] \| After June 30, 2017 [Member] \| Subordinated Debt [Member]
Debt Instrument [Line Items]
Percentage of principal amount redeemed						100.00%
Revolving Credit Facility [Member] \| Credit Agreement [Member]
Debt Instrument [Line Items]
Credit facility maximum borrowing capacity	100,000,000.0
Line of credit, subfacility for standby letters of credit	35,000,000.0
Sub facility for swingline loans	15,000,000.0
Additional capacity	50,000,000.0
Letters of credit outstanding		$ 23,100,000		$ 23,100,000
Line of credit outstanding	$ 76,900,000
Revolving Credit Facility [Member] \| Credit Agreement [Member] \| LIBOR [Member]
Debt Instrument [Line Items]
Interest margin				2.25%
Fiscal Quarters Ending September 30, 2016 through June 30, 2017 [Member] \| Credit Agreement [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Consolidated Net Leverage Ratio		3.50		3.50
Fiscal Quarters Ending September 30, 2017 through June 30, 2018 [Member] \| Credit Agreement [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Consolidated Net Leverage Ratio		3.25		3.25
Each Fiscal Quarter Ending Thereafter [Member] \| Credit Agreement [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Consolidated Net Leverage Ratio		3.00		3.00