Earnings Per Share Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2020

Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]

The following table sets forth the number of employee stock-based compensation awards outstanding but not included in the computation of diluted earnings per share because their effect would have been antidilutive for the years ended December 31, 2020, 2019, and 2018 (in thousands):

	Year Ended December 31,
	2020	2019	2018
Antidilutive securities:
RSUs	673	586	410
Stock options	—	24	8