Quarterly report pursuant to Section 13 or 15(d)

Subsequent Events - Additional Information (Details)

v3.7.0.1
Subsequent Events - Additional Information (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
1 Months Ended 3 Months Ended
Apr. 25, 2017
Apr. 18, 2017
Jan. 24, 2017
Apr. 25, 2017
Mar. 31, 2017
Mar. 31, 2016
Subsequent Event [Line Items]            
Common stock repurchased (in shares)         61,539 158,965
Common stock repurchased, value         $ 298,557 $ 588,480
Dividends declared per common share (in dollars per share)     $ 0.01   $ 0.01 $ 0
Open Market            
Subsequent Event [Line Items]            
Common stock repurchased (in shares)         61,539 158,965
Common stock repurchased, value         $ 298,557 $ 588,480
Subsequent Event            
Subsequent Event [Line Items]            
Dividends declared per common share (in dollars per share) $ 0.01          
Subsequent Event | Open Market            
Subsequent Event [Line Items]            
Common stock repurchased (in shares)       18,606    
Common stock repurchased, value       $ 94,886    
Automatic Labs Inc | Subsequent Event            
Subsequent Event [Line Items]            
Aggregate purchase price   $ 115,000