Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation - Summary of Activity for All Restricted Stock Units ("RSUs") (Details)

v3.4.0.3
Stock-Based Compensation - Summary of Activity for All Restricted Stock Units ("RSUs") (Details) - Restricted Stock Units (RSUs)
shares in Thousands
3 Months Ended
Mar. 31, 2016
$ / shares
shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]  
Shares, Unvested, Balance | shares 1,506
Shares, Granted | shares 1,359
Shares, Issued | shares (78)
Shares, Cancelled / forfeited | shares (51)
Shares, Unvested, Balance | shares 2,736
Weighted-average grant date fair value, Unvested, Balance | $ / shares $ 10.44
Weighted-average grant date fair value, Granted | $ / shares 5.38
Weighted-average grant date fair value, Issued | $ / shares 9.59
Weighted-average grant date fair value, Cancelled / forfeited | $ / shares 9.41
Weighted-average grant date fair value, Unvested, Balance | $ / shares $ 7.95