Earnings (Loss) Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2020	Jun. 30, 2019
Earnings Per Share [Abstract]
Net income available to common stockholders	$ 5,281	$ (20,307)	$ 16,996	$ (7,640)	$ (15,026)	$ 9,356
Weighted average common shares outstanding, basic (in shares)	48,936		48,136		48,759	48,111
Weighed average common shares outstanding, dilutive (in shares)	48,936		48,136		48,759	48,111
Earnings per share - basic (in dollars per share)	$ 0.11		$ 0.35		$ (0.31)	$ 0.19
Earnings per share - diluted (in dollars per share)	$ 0.11		$ 0.35		$ (0.31)	$ 0.19