A summary of our remaining unrecognized compensation expense, net of estimated forfeitures, and the weighted average remaining amortization period at December 31, 2013 related to our non-vested stock options and RSU awards is presented below (in thousands, except per year information):
| Stock Options |
RSUs | |||||||
|
Unrecognized compensation expense (net of forfeitures) |
$ | 93,696 | $ | 33,200 | ||||
|
Weighted average period remaining (in years) |
3.27 | 3.10 | ||||||