Stock-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2018

Stock-Based Compensation

Summary of the restricted stock awards activity

The following table summarizes the restricted stock activity during the nine months ended September 30, 2018. 

	Number of Unvested
	Restricted Stock
	Shares
Outstanding January 1, 2018	1,914,570
Granted	2,074,469
Cancelled	—
Vested	(1,196,833)
Forfeited	(388,694)
Outstanding September 30, 2018 (1)	2,403,512

(1) The total outstanding non-vested shares of restricted stock awards granted to employees and directors are included in total outstanding shares as of September 30, 2018.