XML 15 R6.htm IDEA: XBRL DOCUMENT v3.21.2
Unaudited Consolidated Statements of Cash Flows (Parenthetical) - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Statement of Cash Flows [Abstract]    
Proceeds from Equity Method Investment, Distribution $ 28,589 $ 14,852