Stock Based Compensation (Tables)

12 Months Ended

Dec. 31, 2020

Stock Based Compensation

Restricted shares and restricted share units activity

		Weighted
	Number of	Average
	Restricted	Grant-Date
	Shares	Fair Value
	(thousands)	(per share)
Nonvested at January 1, 2020	1,112	$	19.69
Granted	1,270		8.79
Vested	(457)		19.06
Forfeited	(200)		13.84
Nonvested at December 31, 2020	1,725		12.54
Awards granted during 2019		$	19.69
Awards granted during 2018		$	22.05

	2020		2019		2018
Total fair value of shares vested	$	9	$	8	$	10

Performance vested restricted share unit activity

	Number of Performance	Weighted Average
	Vested Restricted Shares	Grant-Date Fair Value
	Units (thousands)	(per unit)
Nonvested at January 1, 2020	1,559	$	20.20
Granted	1,422		9.92
Vested	(401)		19.53
Forfeited/Cancelled	(289)		14.68
Nonvested at December 31, 2020	2,291		14.63
Awards granted during 2019		$	20.20
Awards granted during 2018		$	19.73