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Equity (Details 2) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Equity [Abstract]      
Accumulated realized and unrealized gain (loss) on available-for-sale securities, net $ 1 $ (94) $ (58)
Accumulated foreign currency translation adjustments (351) (6,057) 115
Accumulated unrealized gain on derivative instruments, net 26 26 26
Total other comprehensive income (loss) $ (324) $ (6,125) $ 83