Annual report pursuant to Section 13 and 15(d)

Document and Entity Information

v2.4.0.6
Document and Entity Information (USD $)
 12 Months Ended
Dec. 31, 2012
Feb. 27, 2013
Jun. 30, 2012
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Document And Entity Information            
Entity Registrant Name Newcastle Investment Corp          
Entity Central Index Key 0001175483          
Document Type 10-K          
Document Period End Date Dec. 31, 2012          
Amendment Flag false          
Current Fiscal Year End Date --12-31          
Is Entity a Well-known Seasoned Issuer? No          
Is Entity a Voluntary Filer? No          
Is Entity's Reporting Status Current? Yes          
Entity Filer Category Large Accelerated Filer          
Entity Public Float     $ 949,000,000      
Entity Common Stock, Shares Outstanding 172,525,645 253,025,645   105,181,009 62,027,184 52,912,513
Document Fiscal Period Focus FY          
Document Fiscal Year Focus 2012