Facebook Inc. included the following disclosure note in an annual report:

Share-Based Compensation (in part)

. . . compensation expense related to these grants is based on the grant date fair value of the RSUs and is recognized on a straight-line basis over the applicable service period.

The following table summarizes the activities for our unvested RSUs for the year ended December 31, 2017:

Number of Shares

(in thousands)Weighted Average

Grant Date Fair ValueUnvested at December 31, 201698,586$82.99Granted36,741147.28Vested(43,176)83.74Forfeited(10,937)91.76Unvested at December 31, 201781,214$110.49

Assuming a four-year vesting period, how much compensation expense did Facebook report in the year ended December 31, 2018, for the restricted stock units granted during the year ended December 31, 2017?