SCHEDULE 13G

Amendment No. 3 
Cross Country Healthcare Inc 
Common Stock 
Cusip #227483104 


Cusip #227483104 
Item 1:	Reporting Person - FMR LLC
Item 4:	Delaware
Item 5:	9,000 
Item 6:	0 
Item 7:	9,000 
Item 8:	0 
Item 9:	9,000 
Item 11:	0.028% 
Item 12:	    HC


Cusip #227483104  
Item 1:	Reporting Person - Edward C. Johnson 3d 
Item 4:	United States of America
Item 5:	0 
Item 6:	0 
Item 7:	9,000 
Item 8:	0 
Item 9:	9,000 
Item 11:	0.028% 
Item 12:	IN 




	SCHEDULE 13G - TO BE INCLUDED IN 
STATEMENTS
	FILED PURSUANT TO RULE 13d-1(b) or 13d-2(b)

This Amendment to Schedule 13G filed by FMR LLC amends 
the statement on Schedule 13G previously filed by FMR 
Corp., the predecessor of FMR LLC.


Item 1(a).	Name of Issuer:	

		Cross Country Healthcare Inc 

Item 1(b).	Name of Issuer's Principal Executive Offices:

		6551 Park of Commerce Blvd
		Suite 200 
		Boca Raton, FL  33487
		  

Item 2(a).	Name of Person Filing: 

		FMR LLC

Item 2(b).	Address or Principal Business Office or, if None, 
Residence:

		82 Devonshire Street, Boston, 
Massachusetts  02109

Item 2(c).	Citizenship:

		Not applicable

Item 2(d).	Title of Class of Securities:

		Common Stock 

Item 2(e).	CUSIP Number:  

		227483104 

Item 3.	This statement is filed pursuant to Rule 13d-1(b) or 13d-2(b) 
and the person filing, FMR LLC, is a parent holding company 
in accordance with Section 240.13d-1(b)(ii)(G).  (Note:  See 
Item 7).

Item 4.	Ownership

	(a)	Amount Beneficially Owned:	9,000 

	(b)	Percent of Class:	0.028% 

	(c)	Number of shares as to which such 
person has:  

	(i)	sole power to vote or to direct 
the vote:	9,000 

	(ii)	shared power to vote or to 
direct the vote:	0 

	(iii)	sole power to dispose or to 
direct the disposition of:	9,000 

	(iv)	shared power to dispose or to 
direct the disposition of:	0 



Item 5.	Ownership of Five Percent or Less of a Class.

	If this statement is being filed to report the fact that as of the 
date hereof, the reporting person has ceased to be the 
beneficial owner of more than five percent of the class of 
securities, check the following (X).

Item 6.	Ownership of More than Five Percent on Behalf of Another 
Person.

	Not applicable

Item 7.	Identification and Classification of the Subsidiary Which 
Acquired the Security Being Reported on By the Parent 
Holding Company.

	See attached Exhibit A. 

Item 8.	Identification and Classification of Members of 
the Group.

	Not applicable.  See attached Exhibit A. 

Item 9.	Notice of Dissolution of Group.

	Not applicable.

Item 10.	Certification.

	Inasmuch as the reporting persons are no longer the beneficial 
owners of more than five percent of the number of shares 
outstanding, the reporting persons have no further reporting 
obligation under Section 13(d) of the Securities and Exchange 
Commission thereunder, and the reporting persons have no 
obligation to amend this Statement if any material change 
occurs in the facts set forth herein.

Signature

	After reasonable inquiry and to the best of my knowledge and 
belief, I certify that the information set forth in this statement 
is true, complete and correct. 

December 07, 2007 			
Date

/s/Eric D. Roiter			
Signature

Eric D. Roiter			
Duly authorized under Power of Attorney
dated December 30, 1997 by and on behalf of FMR Corp. 
(now known as FMR LLC) and its direct and indirect 
subsidiaries



	SCHEDULE 13G - TO BE INCLUDED IN 
STATEMENTS
	FILED PURSUANT TO RULE 13d-1(b) or 13d-2(b)



	Members of the family of Edward C. Johnson 3d, 
Chairman of FMR LLC, are the predominant owners, directly 
or through trusts, of Series B voting common shares of FMR 
LLC, representing 49% of the voting power of FMR LLC.  
The Johnson family group and all other Series B shareholders 
have entered into a shareholders' voting agreement under 
which all Series B voting common shares will be voted in 
accordance with the majority vote of Series B voting common 
shares.  Accordingly, through their ownership of voting 
common shares and the execution of the shareholders' voting 
agreement, members of the Johnson family may be deemed, 
under the Investment Company Act of 1940, to form a 
controlling group with respect to FMR LLC.

	Fidelity International Limited ("FIL"), Pembroke Hall, 
42 Crow Lane, Hamilton, Bermuda, and various foreign-based 
subsidiaries provide investment advisory and management 
services to a number of non-U.S. investment companies and 
certain institutional investors.  FIL, which is a qualified 
institution under section 240.13d-1(b)(1) pursuant to an SEC 
No-Action letter dated October 5, 2000, is the beneficial 
owner of 9,000 shares or 0.028% of the Common Stock 
outstanding of the Company.

	Partnerships controlled predominantly by members of 
the family of Edward C. Johnson 3d, Chairman of FMR LLC 
and FIL, or trusts for their benefit, own shares of FIL voting 
stock with the right to cast approximately 47% of the total 
votes which may be cast by all holders of FIL voting stock.  
FMR LLC and FIL are separate and independent corporate 
entities, and their Boards of Directors are generally composed 
of different individuals.

	FMR LLC and FIL are of the view that they are not 
acting as a "group" for purposes of Section 13(d) under the 
Securities Exchange Act of 1934 (the "1934" Act) and that 
they are not otherwise required to attribute to each other the 
"beneficial ownership" of securities "beneficially owned" by 
the other corporation within the meaning of Rule 13d-3 
promulgated under the 1934 Act.  Therefore, they are of the 
view that the shares held by the other corporation need not be 
aggregated for purposes of Section 13(d). However, FMR 
LLC is making this filing on a voluntary basis as if all of the 
shares are beneficially owned by FMR LLC and FIL on a joint 
basis.



	SCHEDULE 13G - TO BE INCLUDED IN 
STATEMENTS
	FILED PURSUANT TO RULE 13d-1(b) or 13d-2(b)
	RULE 13d-1(f)(1)  AGREEMENT

	The undersigned persons, on December 07, 2007, agree 
and consent to the joint filing on their behalf of this Schedule 
13G in connection with their beneficial ownership of the 
Common Stock of Cross Country Healthcare Inc at November 
30, 2007.

	FMR LLC

	By /s/ Eric D. Roiter			
	Eric D. Roiter
	Duly authorized under Power of Attorney dated 
December 30, 1997, by and on behalf of FMR Corp. (now 
known as FMR LLC) and its direct and indirect subsidiaries

	Edward C. Johnson 3d

	By /s/ Eric D. Roiter			
	Eric D. Roiter
	Duly authorized under Power of Attorney dated 
December 30, 1997, by and on behalf of Edward C. Johnson 
3d