Equity Incentive Plan (Tables)

9 Months Ended

Sep. 30, 2019

Equity Incentive Plan

Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block]

Restricted stock activity is summarized as follows:

	Shares	Weighted Average
	Outstanding	Grant Date
	(in thousands)	Fair Value
Unvested restricted stock at December 31, 2018	212	$	42.74
Restricted stock granted	54	$	65.83
Restricted stock vested	(64)	$	38.99
Unvested restricted stock at September 30, 2019	202	$	50.47

Summary of activity of performance shares

	Target Number	Weighted Average
	of Awards	Grant Date
	(in thousands)	Fair Value
Performance shares at December 31, 2018	31	$	47.73
Performance units granted	30	$	65.66
Performance shares and units at September 30, 2019	61	$	56.57