Common Stock (Schedule of Stock Option Activity) (Details) shares in Thousands	12 Months Ended
	Dec. 31, 2022 $ / shares shares
Shares
Outstanding at beginning of period (in shares) | shares	5
Granted (in shares) | shares	0
Exercised (shares) | shares	0
Canceled (in shares) | shares	0
Outstanding at end of period (in shares) | shares	5
Exercisable (in shares) | shares	5
Weighted-Average Exercise Price
Outstanding at beginning of period (in dollars per share) | $ / shares	$ 80.47
Granted (in dollars per share) | $ / shares	0
Exercised (in dollars per share) | $ / shares	81.50
Canceled (in dollars per share) | $ / shares	0
Outstanding at end of period (in dollars per share) | $ / shares	80.45
Exercisable (in dollars per share) | $ / shares	$ 80.45