Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity Redeemable Preferred Stock (Details)

v3.19.1
Stockholders' Equity Redeemable Preferred Stock (Details) - USD ($)
$ / shares in Units, $ in Thousands
1 Months Ended 3 Months Ended
Jul. 31, 2018
Mar. 31, 2019
Dec. 31, 2018
Class of Stock [Line Items]      
Preferred shares outstanding (in shares)   40,050,000 40,050,000
Preferred stock carrying value   $ 977,501  
Preferred stock liquidation preference per share (in usd per share)   $ 25.00  
Preferred stock par value per share (in usd per share)   $ 0.01 $ 0.01
Series A Preferred Stock [Member]      
Class of Stock [Line Items]      
Preferred shares outstanding (in shares)   5,750,000  
Preferred stock carrying value   $ 138,872  
Preferred stock dividend rate   8.125%  
Preferred stock dividend variable rate spread   5.66%  
Series B Preferred Stock [Member]      
Class of Stock [Line Items]      
Preferred shares outstanding (in shares)   11,500,000  
Preferred stock carrying value   $ 278,094  
Preferred stock dividend rate   7.625%  
Preferred stock dividend variable rate spread   5.352%  
Series C Preferred Stock [Member]      
Class of Stock [Line Items]      
Preferred shares outstanding (in shares)   11,800,000  
Preferred stock carrying value   $ 285,585  
Preferred stock dividend rate   7.25%  
Preferred stock dividend variable rate spread   5.011%  
Series D Preferred Stock [Member]      
Class of Stock [Line Items]      
Preferred shares outstanding (in shares)   3,000,000  
Preferred stock carrying value   $ 74,964  
Preferred stock dividend rate   7.75%  
Number of shares of stock issued during period (in shares) 3,000,000    
Preferred stock par value per share (in usd per share)   $ 0.01  
Series E Preferred Stock [Member]      
Class of Stock [Line Items]      
Preferred shares outstanding (in shares)   8,000,000  
Preferred stock carrying value   $ 199,986  
Preferred stock dividend rate   7.50%  
Number of shares of stock issued during period (in shares) 8,000,000    
Preferred stock par value per share (in usd per share)   $ 0.01