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SUBSEQUENT EVENTS (Details)
$ / shares in Units, $ in Millions
1 Months Ended
Apr. 28, 2017
USD ($)
Jan. 26, 2017
$ / shares
Apr. 30, 2017
USD ($)
trust
Subsequent Event [Line Items]      
Dividend declared per share (in dollars per share) | $ / shares   $ 0.48  
Subsequent Event [Member]      
Subsequent Event [Line Items]      
Payment of common stock dividends $ 147.5    
Unpaid Principal Balance     $ 668.0
Non-Agency [Member] | Subsequent Event [Member]      
Subsequent Event [Line Items]      
Number of securitization trusts | trust     14
Unpaid Principal Balance     $ 382.6
Total purchase price     $ 382.8