XML 148 R129.htm IDEA: XBRL DOCUMENT v3.10.0.1
Stockholders' Equity - Narrative (Details)
 1 Months Ended 3 Months Ended 12 Months Ended
Jan. 27, 2017
$ / shares
Jan. 20, 2017
$ / shares
Jan. 10, 2017
shares
Jan. 10, 2017
$ / shares
shares
Apr. 02, 2015
Mar. 31, 2017
USD ($)
Mar. 31, 2017
$ / shares
Mar. 31, 2017
$ / shares
Dec. 31, 2018
USD ($)
vote
quarter
director
$ / shares
shares
Dec. 31, 2017
USD ($)
$ / shares
shares
Dec. 31, 2016
USD ($)
$ / shares
shares
May 23, 2018
USD ($)
Feb. 26, 2018
USD ($)
Sep. 01, 2017
USD ($)
Feb. 23, 2017
USD ($)
Dec. 31, 2015
shares
Class of Stock [Line Items]                                
Redemption amount per share (in dollars per share) | $ / shares                 $ 25.00              
Number of directors vote entitles | director                 2              
Preferred stock, shares outstanding (in shares) | shares     39,466,000 39,466,000         57,464,000 65,464,000            
Proceeds from issuance of preferred stock, net                 $ 0 $ 638,100,000 $ 0          
Common stock conversion ratio for Class A to Class B / OP Units         1                      
Common stock, dividends, per share, declared (in dollars per share) | $ / shares             $ 0.24 $ 0.27 $ 0.44 $ 1.08 $ 1.08          
Class A common stock acquired under the DRIP Plan (in shares) | shares                 0 0            
Minimum affirmative vote required for changes to any series of preferred stock                 66.67%              
Minimum period of dividend defaults providing preferred stockholders to voting rights | quarter                 6              
Class A Common Stock                                
Class of Stock [Line Items]                                
Stock repurchase, authorized amount                       $ 300,000,000 $ 300,000,000      
Stock repurchase, period for repurchase                 1 year              
Shares repurchased (in shares) | shares                 61,417,755              
Value of shares repurchased                 $ 350,100,000              
Weighted average price per share (in dollars per share) | $ / shares                 $ 5.70              
Voting rights attributable to each share | vote                 1              
Class B Common Stock                                
Class of Stock [Line Items]                                
Voting rights attributable to each share | vote                 36.5              
Series I                                
Class of Stock [Line Items]                                
Preferred stock, shares outstanding (in shares) | shares                 13,800,000              
Dividend rate per annum, preferred stock                 7.15%              
Series J                                
Class of Stock [Line Items]                                
Preferred stock, shares outstanding (in shares) | shares                 12,600,000              
Dividend rate per annum, preferred stock                 7.125%              
Series I and J Preferred Stock                                
Class of Stock [Line Items]                                
Proceeds from issuance of preferred stock, net                   $ 637,900,000            
Series A, B, C, F Preferred Stock                                
Class of Stock [Line Items]                                
Preferred stock redemptions payable                           $ 644,900,000    
Preferred Stock                                
Class of Stock [Line Items]                                
Redemption amount per share (in dollars per share) | $ / shares                 $ 25.00              
Preferred stock, shares outstanding (in shares) | shares                 57,464,000 65,464,000 25,030,000         25,030,000
Liquidation preference per share (in dollars per share) | $ / shares                 $ 25.00              
Colony NorthStar | Common Stock                                
Class of Stock [Line Items]                                
Dividends paid (in dollars per share) | $ / shares   $ 0.04444   $ 0.03                        
Colony NorthStar | Class A Common Stock                                
Class of Stock [Line Items]                                
Exchange ratio     1.4663 1.4663         1.4663              
Colony NorthStar | Class B Common Stock                                
Class of Stock [Line Items]                                
Exchange ratio     1.4663                          
Colony NorthStar | Preferred Stock                                
Class of Stock [Line Items]                                
Exchange ratio     1                          
NSAM | Common Stock                                
Class of Stock [Line Items]                                
Dividends paid (in dollars per share) | $ / shares $ 1.16                              
NSAM | Colony NorthStar | Class A Common Stock                                
Class of Stock [Line Items]                                
Exchange ratio     1.4663                          
Common stock conversion ratio for Class A to Class B / OP Units     1                          
Call Spread | Class A Common Stock                                
Class of Stock [Line Items]                                
Shares repurchased (in shares) | shares                   2,150,120            
Value of shares repurchased                   $ 29,800,000            
Short | Call Spread | NSAM | Common Stock                                
Class of Stock [Line Items]                                
Settlement           $ 21,900,000                    
Cash pledged as collateral, released           $ 15,000,000                    
Share Repurchase Program | Class A Common Stock                                
Class of Stock [Line Items]                                
Stock repurchase, authorized amount                             $ 300,000,000.0  
Shares repurchased (in shares) | shares                   23,371,071            
Weighted average price per share (in dollars per share) | $ / shares                   $ 12.84