Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Exp) (Details)

v3.7.0.1
Stock-Based Compensation (Exp) (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Summary of employee stock-based compensation expense    
Stock-based compensation expense $ 7,458 $ 11,615
Tax effect on stock-based compensation expense (2,800) (4,646)
Net effect on income $ 4,658 $ 6,969
Statutory rate (as a percent) 37.50% 40.00%
Tax effect on stock-based compensation expense after valuation allowance $ 0