Incentive and Restricted Stock Plan and Dividend Reinvestment Plan - Non-vested Restricted Stock Granted (Details) - Restricted Stock - $ / shares	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Restricted Stock
Non-vested at beginning of the year (in shares)	276,680	182,035
Granted (in shares)	130,670	230,703	84,882
Vested (in shares)	71,152	77,317
Forfeited (in shares)	57,810	58,741
Non-vested at end of the year (in shares)	278,388	276,680	182,035
Weighted Average Grant Date Fair Value
Non-vested at beginning of the year (in dollars per share)	$ 25.64	$ 24.54	$ 34.06
Granted (in dollars per share)	33.17	23.43
Vested (in dollars per share)	27.66	37.39
Forfeited (in dollars per share)	34.93	32.77
Non-vested at end of the year (in dollars per share)	$ 25.64	$ 24.54	$ 34.06