Stock Incentive Plans (Tables)

12 Months Ended

Dec. 31, 2019

Share-based Payment Arrangement [Abstract]

Summary of Restricted Stock Activity

The following table presents the restricted stock activity for the year ended December 31, 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	399	$	38.37
Forfeited/Canceled	(53)	$	24.68
Vested(2)	(486)	$	24.89	$	18,813
Outstanding at December 31, 2019	1,180	$	29.51

⁽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 year ended December 31, 2019, was due to the acceleration of stock-based compensation expense for KGS management triggered by a change in control of KGS.