Quarterly report pursuant to Section 13 or 15(d)

Equity (Details)

v3.7.0.1
Equity (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended
Jan. 21, 2017
Mar. 31, 2017
Dec. 31, 2016
Class of Stock [Line Items]      
Conversion of common units to common shares (in units/ shares)   185,000  
Common Stock Issued to Public Under At-the-Market Program      
Class of Stock [Line Items]      
Shares issued to the public   546,782  
Issuance of stock, weighted average price per share (in dollars per share)   $ 33.89  
Net proceeds from shares issued   $ 18,300  
Payments of stock issuance costs   278  
At-market stock, offering program established, remaining capacity   $ 71,500  
Redeemable Convertible Preferred Stock      
Class of Stock [Line Items]      
Preferred stock, redemption price per share (in dollars per share) $ 50.00    
Stock redeemed or called during period value $ 26,600    
Issuance costs associated with redeemed preferred shares     $ 17