XML 24 R8.htm IDEA: XBRL DOCUMENT v3.21.1
CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical) - USD ($)
shares in Thousands, $ in Thousands
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Statement of Cash Flows [Abstract]    
Net capitalized interest $ 120 $ 392
Common stock surrendered in exchange for exercise of stock options (in shares) 2 39