Earnings per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Earnings Per Share [Abstract]
Net income	$ 15,087	$ 14,218	$ 36,949	$ 41,168
Shares:
Weighted average shares outstanding - basic (in shares)	110,983,871	111,371,754	110,177,736	111,486,179
Effect of dilutive common stock equivalents (in shares)	0	0	0	0
Weighted average shares outstanding - diluted (in shares)	110,983,871	111,371,754	110,177,736	111,486,179
Earnings per share:
Basic (in dollars per share)	$ 0.14	$ 0.13	$ 0.34	$ 0.37
Diluted (in dollars per share)	$ 0.14	$ 0.13	$ 0.34	$ 0.37
Antidilutive securities excluded from computation of earnings per share, amount (in shares)	2,272,060	790,000	1,436,476	310,000