CONSOLIDATED BALANCE SHEETS (in thousands, except share data) Parenthetical - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Statement of Financial Position [Abstract]
Other property and equipment, accumulated depreciation	$ 64,032	$ 57,102
Common Stock, par value per share	$ 0.01	$ 0.01
Common Stock, shares authorized	200,000,000	200,000,000
Common Stock, shares issued	112,987,952	112,241,966
Common Stock, shares outstanding	112,987,952	112,241,966