CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Statement of Cash Flows [Abstract]
Interest costs capitalized	$ 700	$ 400	$ 1,643	$ 751
Proceeds from income tax refunds			$ 181	$ 0