Stockholders' Equity - Computation of Basic and Diluted Earnings (Loss) Per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Weighted average Common Shares outstanding
Weighted average common shares outstanding (in shares)	150,834,888	140,567,352
Non-vested shares (in shares)	(1,871,858)	(1,793,598)
Weighted average common shares outstanding - basic (in shares)	148,963,030	138,773,754
Dilutive effect of employee stock purchase plan (in shares)	88,234	97,064
Weighted average common shares outstanding - diluted (in shares)	149,051,264	138,870,818
Net Income	$ 42,227	$ 24,022
Dividends paid on nonvested share-based awards	(605)	(540)
Net income applicable to common stockholders	$ 41,622	$ 23,482
Basic earnings per common share - net income (in dollars per share)	$ 0.28	$ 0.17
Diluted earnings per common share- net income (in dollars per share)	$ 0.28	$ 0.17