CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Statement Of Financial Position [Abstract]
Accounts and notes receivable, allowances	$ 11,399	$ 11,387
Common stock, par value
Common stock, shares authorized	200,000,000	200,000,000
Common stock, shares, issued	69,666,667	69,238,901
Common stock, shares outstanding	69,666,667	69,238,901