Earnings (loss) per Share - Schedule of earnings per share, basic and diluted (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Earnings Per Share [Abstract]
Net income (loss)	$ 59,073	$ 39,745	$ (60,764)
Basic:
Weighted average number of shares	121,467	119,994	119,994
Earnings per share (basic)	$ 0.49	$ 0.33	$ (0.51)
Diluted:
RSU Dilutive shares (in shares)	47	0
Weighted average number of shares	121,514	119,994	119,994
Earnings (loss) per share (in dollars per share)	$ 0.49	$ 0.33	$ (0.51)