CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($)
$ in Thousands
Total
Parent [Member]
Common Stock [Member]
Additional Paid-In Capital [Member]
Accumulated Other Comprehensive (Loss)/Income [Member]
Retained Earnings [Member]
Distributions in Excess of Earnings [Member]
Noncontrolling Interest [Member]
Preferred Shares - Series A [Member]
Preferred Stock [Member]
Preferred Shares - Series B [Member]
Preferred Stock [Member]
Redeemable Preferred Stock Series C [Member]
Redeemable Preferred Stock Series C [Member]
Preferred Stock [Member]
Preferred Stock [Member]
Preferred Stock [Member]
Parent [Member]
Preferred Stock [Member]
Additional Paid-In Capital [Member]
Common Stock [Member]
Common Stock [Member]
Parent [Member]
Common Stock [Member]
Common Stock [Member]
Common Stock [Member]
Additional Paid-In Capital [Member]
Balance (in shares) at Dec. 31, 2012     26,279,523                                
Balance at Dec. 31, 2012 $ 613,345 $ 613,345 $ 26 $ 836,132 $ (27,078) $ 0 $ (195,737) $ 0 $ 1 $ 1   $ 0              
Increase (Decrease) in Stockholders' Equity [Roll Forward]                                      
Proceeds from dividend reinvestment and stock purchase plan (in shares)     852,882                                
Proceeds from dividend reinvestment and stock purchase plan 19,209 19,209 $ 1 19,208                              
Proceeds from common stock (in shares)     4,671,875                                
Proceeds from issuance of stock 58,012 58,012 $ 5 58,010           2           $ 118,264 $ 118,264   $ 118,259
Offering costs (5,493) (5,493)   (5,493)                              
Discount on 6% and 8% convertible senior notes 4,851 4,851   4,851                              
Stock based compensation (in shares)     175,451                                
Stock based compensation 1,137 1,137 $ 0 1,137                              
Amortization of stock based compensation 10,472 10,472   10,472                              
Net income 46,453 46,453       46,453 0                        
Preferred dividends (7,221) (7,221)       (7,221)                          
Securities available-for-sale, fair value adjustment, net 8,399 8,399     8,399                            
Designated derivatives, fair value adjustment 4,440 4,440     4,440                            
Foreign currency translation adjustment 196 196     196                            
Distributions on common stock (98,140) (98,140)       (39,232) (58,908)                        
Balance (in shares) at Dec. 31, 2013     31,979,731                                
Balance at Dec. 31, 2013 773,924 773,924 $ 32 1,042,576 (14,043) 0 (254,645) 0 1 3   0              
Increase (Decrease) in Stockholders' Equity [Roll Forward]                                      
Proceeds from dividend reinvestment and stock purchase plan (in shares)     1,382,976                                
Proceeds from dividend reinvestment and stock purchase plan 30,293 30,293 $ 1 30,292                              
Proceeds from common stock (in shares)                                   0  
Proceeds from issuance of stock                 0 3   5 $ 174,159 $ 174,159 $ 174,151 0 0 $ 0 0
Offering costs (1,414) (1,414)   (1,414)                              
Stock based compensation (in shares)     222,483                                
Stock based compensation 0 0 $ 0 0                              
Amortization of stock based compensation 6,566 6,566   6,566                              
Purchase and retirement of shares, shares     (341,396)                                
Purchase and retirement of shares (6,826) (6,826) $ 0 (6,826)                              
Contributions from (distributions to), net non-controlling interests (11,141)             (11,141)                      
Net income 62,168 61,203       61,203 0 965                      
Preferred dividends (17,176) (17,176)       (17,176)                          
Securities available-for-sale, fair value adjustment, net 22,988 18,506     18,506     4,482                      
Designated derivatives, fair value adjustment 2,188 2,188     2,188                            
Foreign currency translation adjustment (608) (608)     (608)                            
Distributions on common stock $ (105,292) (105,292)       (44,027) (61,265)                        
Balance (in shares) at Dec. 31, 2014 33,243,794   33,243,794                                
Balance at Dec. 31, 2014 $ 952,111 935,523 $ 33 1,245,345 6,043 0 (315,910) 16,588 1 6   5              
Increase (Decrease) in Stockholders' Equity [Roll Forward]                                      
Proceeds from dividend reinvestment and stock purchase plan (in shares) 20,963   20,963                                
Proceeds from dividend reinvestment and stock purchase plan $ 328 328 $ 0 328                              
Proceeds from common stock (in shares)                     0             0  
Proceeds from issuance of stock                 0 0   0 $ 3,113 $ 3,113 $ 3,113 $ 0 $ 0 $ 0 $ 0
Offering costs (185) (185)   (185)                              
Discount on 6% and 8% convertible senior notes 2,528     2,528                              
Stock based compensation (in shares)     307,611                                
Stock based compensation 0 0 $ 0 0                              
Amortization of stock based compensation 3,145 3,145   3,145                              
Purchase and retirement of shares, shares     (2,001,263)                                
Purchase and retirement of shares (25,929) (25,929) $ (1) (25,928)                              
Forfeiture of unvested stock, In shares     (8,381)                                
Contributions from (distributions to), net non-controlling interests (11,915)             (11,915)                      
Net income 17,183 10,555       10,555 0 6,628                      
Preferred dividends (24,437) (24,437)       (24,437)                          
Securities available-for-sale, fair value adjustment, net (18,216) (14,811)     (14,811)     (3,405)                      
Designated derivatives, fair value adjustment 5,496 5,496     5,496                            
Foreign currency translation adjustment 349 349     349                            
Distributions on common stock $ (76,811) (76,811)       13,882 (90,693)                        
Balance (in shares) at Dec. 31, 2015 31,562,724   31,562,724                                
Balance at Dec. 31, 2015 $ 826,760 $ 818,864 $ 32 $ 1,228,346 $ (2,923) $ 0 $ (406,603) $ 7,896 $ 1 $ 6   $ 5