Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation (Details)

v3.7.0.1
Basis of Presentation (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Feb. 25, 2016
New Accounting Pronouncements or Change in Accounting Principle [Line Items]      
Shares authorized for repurchase     2,000,000
Remaining shares authorized for repurchase 1,956,390    
Shares repurchased 0    
Net cash provided by operating activities $ 9,001 $ 13,516  
Net cash used in financing activities $ (16,340) (5,860)  
Accounting Standards Update 2016-09 | Adjustment      
New Accounting Pronouncements or Change in Accounting Principle [Line Items]      
Net cash provided by operating activities   (275)  
Net cash used in financing activities   $ 275