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Schedule of Stock-Based Compensation Expense Expected to be Recognized (Details)
$ in Thousands
Dec. 31, 2015
USD ($)
Share-based Compensation Arrangement by Share-based Payment Award  
2014 $ 14,264
2015 8,767
2016 5,334
2017 2,754
2018 30
Total unrecognized compensation expense 31,149
RSUs  
Share-based Compensation Arrangement by Share-based Payment Award  
2014 13,997
2015 8,760
2016 5,334
2017 2,754
2018 30
Total unrecognized compensation expense 30,875
Stock Options  
Share-based Compensation Arrangement by Share-based Payment Award  
2014 267
2015 7
2016 0
Total unrecognized compensation expense $ 274