Earnings Per Common Share - Narrative (Details) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Earnings Per Share [Abstract]
Dividends declared per share (in dollars per share)	$ 0.17	$ 0.30	$ 0.77	$ 0.90