Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2018

Summary of Activity for Restricted Stock Awards

The following table provides a summary of activity with regard to restricted stock awards in the six months ended June 30, 2018:

				Weighted Average
				Grant Date
	Number of Shares			Fair Value
Unvested at beginning of year		5,574,167			$15.38
Granted		2,458,523			13.59
Vested		(697,482	)		15.20
Canceled		(134,420	)		15.01
Unvested at end of period		7,200,788			14.79