Stock Incentive Plans (Tables)

9 Months Ended

Sep. 30, 2019

Share-based Payment Arrangement [Abstract]

Summary of Restricted Stock Activity

The following table presents the restricted stock activity for the nine months ended September 30, 2019 (in thousands, except per share amounts):

	Number of Restricted Stock	Weighted-Average Grant Date Fair Value		Total Intrinsic Value of Restricted Stock Vested
Outstanding at December 31, 2018 (1)	1,320	$	24.94
Granted	69	$	33.08
Forfeited	(51)	$	24.23
Vested (2)	(129)	$	23.75	$	4,602
Outstanding at September 30, 2019	1,209	$	25.55

(1) The weighted-average grant date fair value at December 31, 2018 has been updated to correct an immaterial reporting error in our 2018 Annual Report on Form 10-K.

(2) The increase in shares vested during the nine months ended September 30, 2019 was due to the acceleration of stock-based compensation expense triggered by a change in control of KGS.