Annual report pursuant to Section 13 and 15(d)

Income Taxes - Common and Preferred Stock Distribution (Details)

v3.19.3.a.u2
Income Taxes - Common and Preferred Stock Distribution (Details) - $ / shares
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Dividends Payable [Line Items]      
Common stock, dividends declared per share (in dollars per share) $ 3.000 $ 3.000 $ 3.000
Total Distribution per Share      
Dividends Payable [Line Items]      
Common stock, dividends declared per share (in dollars per share) 3.0000 3.0000 3.0000
Preferred stock, dividends declared per share (in dollars per share) 1.8436 1.8436 1.8436
Total Ordinary Dividends      
Dividends Payable [Line Items]      
Common stock, dividends declared per share (in dollars per share) 1.9537 2.1384 2.3700
Preferred stock, dividends declared per share (in dollars per share) 1.7872 1.3140 1.8436
Qualified Dividends      
Dividends Payable [Line Items]      
Common stock, dividends declared per share (in dollars per share) 0.0000 0.0000 0.3140
Preferred stock, dividends declared per share (in dollars per share) 0.0000 0.0000 0.2444
Capital Gain Distributions      
Dividends Payable [Line Items]      
Common stock, dividends declared per share (in dollars per share) 0.0606 0.8616 0.0000
Preferred stock, dividends declared per share (in dollars per share) 0.0564 0.5296 0.0000
Nondividend Distributions      
Dividends Payable [Line Items]      
Common stock, dividends declared per share (in dollars per share) 0.9857   0.6300
Preferred stock, dividends declared per share (in dollars per share) 0.0000   0.0000
Unrecaptured Section 1250 Gain      
Dividends Payable [Line Items]      
Common stock, dividends declared per share (in dollars per share)   0.4028  
Preferred stock, dividends declared per share (in dollars per share)   0.2476  
Section 199A Dividends      
Dividends Payable [Line Items]      
Common stock, dividends declared per share (in dollars per share) 1.9537 2.1384  
Preferred stock, dividends declared per share (in dollars per share) 1.7872 1.3140  
Installment One | Total Distribution per Share      
Dividends Payable [Line Items]      
Common stock, dividends declared per share (in dollars per share) 0.7500 0.7500 0.7500
Preferred stock, dividends declared per share (in dollars per share) 0.4609 0.4609 0.4609
Installment One | Total Ordinary Dividends      
Dividends Payable [Line Items]      
Common stock, dividends declared per share (in dollars per share) 0.5803 0.5346 0.5925
Preferred stock, dividends declared per share (in dollars per share) 0.4483 0.3285 0.4609
Installment One | Qualified Dividends      
Dividends Payable [Line Items]      
Common stock, dividends declared per share (in dollars per share) 0.0000 0.0000 0.0785
Preferred stock, dividends declared per share (in dollars per share) 0.0000 0.0000 0.0611
Installment One | Capital Gain Distributions      
Dividends Payable [Line Items]      
Common stock, dividends declared per share (in dollars per share) 0.0156 0.2154 0.0000
Preferred stock, dividends declared per share (in dollars per share) 0.0126 0.1324 0.0000
Installment One | Nondividend Distributions      
Dividends Payable [Line Items]      
Common stock, dividends declared per share (in dollars per share) 0.1541   0.1575
Preferred stock, dividends declared per share (in dollars per share) 0.0000   0.0000
Installment One | Unrecaptured Section 1250 Gain      
Dividends Payable [Line Items]      
Common stock, dividends declared per share (in dollars per share)   0.1007  
Preferred stock, dividends declared per share (in dollars per share)   0.0619  
Installment One | Section 199A Dividends      
Dividends Payable [Line Items]      
Common stock, dividends declared per share (in dollars per share) 0.5803 0.5346  
Preferred stock, dividends declared per share (in dollars per share) 0.4483 0.3285  
Installment Two | Total Distribution per Share      
Dividends Payable [Line Items]      
Common stock, dividends declared per share (in dollars per share) 0.7500 0.7500 0.7500
Preferred stock, dividends declared per share (in dollars per share) 0.4609 0.4609 0.4609
Installment Two | Total Ordinary Dividends      
Dividends Payable [Line Items]      
Common stock, dividends declared per share (in dollars per share) 0.4578 0.5346 0.5925
Preferred stock, dividends declared per share (in dollars per share) 0.4463 0.3285 0.4609
Installment Two | Qualified Dividends      
Dividends Payable [Line Items]      
Common stock, dividends declared per share (in dollars per share) 0.0000 0.0000 0.0785
Preferred stock, dividends declared per share (in dollars per share) 0.0000 0.0000 0.0611
Installment Two | Capital Gain Distributions      
Dividends Payable [Line Items]      
Common stock, dividends declared per share (in dollars per share) 0.0150 0.2154 0.0000
Preferred stock, dividends declared per share (in dollars per share) 0.0146 0.1324 0.0000
Installment Two | Nondividend Distributions      
Dividends Payable [Line Items]      
Common stock, dividends declared per share (in dollars per share) 0.2772   0.1575
Preferred stock, dividends declared per share (in dollars per share) 0.0000   0.0000
Installment Two | Unrecaptured Section 1250 Gain      
Dividends Payable [Line Items]      
Common stock, dividends declared per share (in dollars per share)   0.1007  
Preferred stock, dividends declared per share (in dollars per share)   0.0619  
Installment Two | Section 199A Dividends      
Dividends Payable [Line Items]      
Common stock, dividends declared per share (in dollars per share) 0.4578 0.5346  
Preferred stock, dividends declared per share (in dollars per share) 0.4463 0.3285  
Installment Three | Total Distribution per Share      
Dividends Payable [Line Items]      
Common stock, dividends declared per share (in dollars per share) 0.7500 0.7500 0.7500
Preferred stock, dividends declared per share (in dollars per share) 0.4609 0.4609 0.4609
Installment Three | Total Ordinary Dividends      
Dividends Payable [Line Items]      
Common stock, dividends declared per share (in dollars per share) 0.4578 0.5346 0.5925
Preferred stock, dividends declared per share (in dollars per share) 0.4463 0.3285 0.4609
Installment Three | Qualified Dividends      
Dividends Payable [Line Items]      
Common stock, dividends declared per share (in dollars per share) 0.0000 0.0000 0.0785
Preferred stock, dividends declared per share (in dollars per share) 0.0000 0.0000 0.0611
Installment Three | Capital Gain Distributions      
Dividends Payable [Line Items]      
Common stock, dividends declared per share (in dollars per share) 0.0150 0.2154 0.0000
Preferred stock, dividends declared per share (in dollars per share) 0.0146 0.1324 0.0000
Installment Three | Nondividend Distributions      
Dividends Payable [Line Items]      
Common stock, dividends declared per share (in dollars per share) 0.2772   0.1575
Preferred stock, dividends declared per share (in dollars per share) 0.0000   0.0000
Installment Three | Unrecaptured Section 1250 Gain      
Dividends Payable [Line Items]      
Common stock, dividends declared per share (in dollars per share)   0.1007  
Preferred stock, dividends declared per share (in dollars per share)   0.0619  
Installment Three | Section 199A Dividends      
Dividends Payable [Line Items]      
Common stock, dividends declared per share (in dollars per share) 0.4578 0.5346  
Preferred stock, dividends declared per share (in dollars per share) 0.4463 0.3285  
Installment Four | Total Distribution per Share      
Dividends Payable [Line Items]      
Common stock, dividends declared per share (in dollars per share) 0.7500 0.7500 0.7500
Preferred stock, dividends declared per share (in dollars per share) 0.4609 0.4609 0.4609
Installment Four | Total Ordinary Dividends      
Dividends Payable [Line Items]      
Common stock, dividends declared per share (in dollars per share) 0.4578 0.5346 0.5925
Preferred stock, dividends declared per share (in dollars per share) 0.4463 0.3285 0.4609
Installment Four | Qualified Dividends      
Dividends Payable [Line Items]      
Common stock, dividends declared per share (in dollars per share) 0.0000 0.0000 0.0785
Preferred stock, dividends declared per share (in dollars per share) 0.0000 0.0000 0.0611
Installment Four | Capital Gain Distributions      
Dividends Payable [Line Items]      
Common stock, dividends declared per share (in dollars per share) 0.0150 0.2154 0.0000
Preferred stock, dividends declared per share (in dollars per share) 0.0146 0.1324 0.0000
Installment Four | Nondividend Distributions      
Dividends Payable [Line Items]      
Common stock, dividends declared per share (in dollars per share) 0.2772   0.1575
Preferred stock, dividends declared per share (in dollars per share) 0.0000   $ 0.0000
Installment Four | Unrecaptured Section 1250 Gain      
Dividends Payable [Line Items]      
Common stock, dividends declared per share (in dollars per share)   0.1007  
Preferred stock, dividends declared per share (in dollars per share)   0.0619  
Installment Four | Section 199A Dividends      
Dividends Payable [Line Items]      
Common stock, dividends declared per share (in dollars per share) 0.4578 0.5346  
Preferred stock, dividends declared per share (in dollars per share) $ 0.4463 $ 0.3285  
Capital Stock      
Dividends Payable [Line Items]      
Ordinary income dividend percentage 65.10%    
Return of capital percentage 32.90%    
Capital gain percentage 2.00%    
Qualified dividend income percentage 0.00%    
Capital gain, percentage subject to maximum 20 percent tax rate 100.00%    
Preferred Stock      
Dividends Payable [Line Items]      
Ordinary income dividend percentage 96.90%    
Return of capital percentage 0.00%    
Capital gain percentage 3.10%    
Qualified dividend income percentage 0.00%    
Capital gain, percentage subject to maximum 20 percent tax rate 100.00%