Stock-Based Compensation (Schedule of Outstanding Restricted Stock) (Details) - Long-Term Restricted Stock Awards	6 Months Ended
	Jun. 30, 2022 $ / shares shares
Number of Units
Nonvested, beginning (in shares) | shares	206,331
Granted during the period (in shares) | shares	68,672
Vested during the period (in shares) | shares	(52,423)
Forfeited or expired during the period (in shares) | shares	(7,115)
Nonvested, ending (in shares) | shares	215,465
Weighted-Average Grant-Date Fair Value
Nonvested, beginning (in dollars per share) | $ / shares	$ 35.25
Granted during the period (in dollars per share) | $ / shares	38.18
Vested during the period (in dollars per share) | $ / shares	35.70
Forfeited or expired during the period (in dollars per share) | $ / shares	31.50
Nonvested, ending (in dollars per share) | $ / shares	$ 36.18