Stockholders' Equity and Equity Compensation Plans (Tables)

6 Months Ended

Jun. 30, 2020

Stockholders Equity Note [Abstract]

Summary of Unvested Restricted Common Stock Activity

A summary of our unvested restricted common stock activity during the quarter and six months ended June 30, 2020 is as follows (shares in thousands):

	Quarter Ended					Six Months Ended
	June 30, 2020					June 30, 2020
	Shares			Weighted- Average Grant Date Fair Value		Shares			Weighted- Average Grant Date Fair Value
Unvested awards, beginning		1,153		$	41.98		1,117		$	42.60
Awards granted		14			46.31		512			41.50
Awards forfeited/cancelled		(14	)		44.21		(28	)		42.75
Awards vested		(10	)		46.88		(458	)		43.31
Unvested awards, ending		1,143		$	41.98		1,143		$	41.98