Common Stock Equivalents (Details) - shares shares in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Earnings Per Share [Abstract]
Weighted Average Number of Shares Outstanding, Basic	539,000	527,000	539,000	526,000
Diluted (in shares)	539,000	527,000	539,000	527,000
Dilutive Effect of Contingently Issuable Shares	300	500	300	700