Annual report pursuant to Section 13 and 15(d)

CONSOLIDATED STATEMENTS OF NET AND COMPREHENSIVE INCOME (Parenthetical)

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CONSOLIDATED STATEMENTS OF NET AND COMPREHENSIVE INCOME (Parenthetical) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Income Statement [Abstract]      
Marketable debt securities, available-for-sale, net change, tax $ 286 $ 611 $ (177)
Foreign currency translation (loss) gain, tax $ 0 $ 0 $ 0