Quarterly report pursuant to Section 13 or 15(d)

Shareholders' Equity Rollforward (Details)

v3.7.0.1
Shareholders' Equity Rollforward (Details)
$ in Thousands
3 Months Ended
Mar. 31, 2017
USD ($)
Increase (Decrease) in Stockholders' Equity [Roll Forward]  
As of beginning balance $ 185,548
Net income (loss) 28,407
All Other Changes 835
As of ending balance 214,790
Share-based compensation 846
Common stock  
Increase (Decrease) in Stockholders' Equity [Roll Forward]  
As of beginning balance 150
As of ending balance 150
Paid-in capital  
Increase (Decrease) in Stockholders' Equity [Roll Forward]  
As of beginning balance 190,621
All Other Changes 835 [1]
As of ending balance 191,456
Retained earnings (accumulated deficit)  
Increase (Decrease) in Stockholders' Equity [Roll Forward]  
As of beginning balance (5,296)
Net income (loss) 28,407
As of ending balance 23,111
Accumulated other comprehensive income  
Increase (Decrease) in Stockholders' Equity [Roll Forward]  
As of beginning balance 73
As of ending balance $ 73
[1] ncludes equity-classified share-based compensation of $846.