Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity and Share-Based Compensation - Summary of Restricted Stock Unit Activity (Details)

v3.8.0.1
Stockholders' Equity and Share-Based Compensation - Summary of Restricted Stock Unit Activity (Details) - Restricted stock units
$ / shares in Units, shares in Thousands, $ in Thousands
 3 Months Ended
Mar. 31, 2018
USD ($)
$ / shares
shares
Shares  
Awards outstanding, beginning balance (in shares) | shares 1,113
Awarded (in shares) | shares 1,033
Vested (in shares) | shares (438)
Forfeited (in shares) | shares (299)
Awards outstanding, ending balance (in shares) | shares 1,409
Vested and expected to vest, ending balance (in shares) | shares 1,360
Weighted Average Exercise Price  
Awards outstanding, weighted average exercise price, beginning balance (in usd per share) | $ / shares $ 0.00
Awarded, weighted average exercise price (in usd per share) | $ / shares 0.00
Vested, weighted average exercise price (in usd per share) | $ / shares 0.00
Forfeited, weighted average exercise price (in usd per share) | $ / shares 0.00
Awards outstanding, weighted average exercise price, ending balance (in usd per share) | $ / shares 0.00
Vested and expected to vest, weighted average exercise price, ending balance (in usd per share) | $ / shares $ 0.00
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Additional Disclosures [Abstract]  
Awards outstanding, weighted average remaining contractual term (in years) 1 year 3 months 29 days
Vested and expected to vest, weighted average remaining contractual term (in years) 1 year 3 months 29 days
Awards outstanding, aggregate intrinsic value | $ $ 2,890
Vested and expected to vest, aggregate intrinsic value | $ $ 2,788