Annual report pursuant to Section 13 and 15(d)

Income Taxes - Schedule of Reconciliation of Unrecognized Tax Benefits (Details)

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Income Taxes - Schedule of Reconciliation of Unrecognized Tax Benefits (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Income Tax Disclosure [Abstract]      
Gross unrecognized tax benefit beginning balance $ 3,783 $ 2,795 $ 2,305
Additions for tax positions taken in the current year 1,090 1,005 741
Additions / (Reductions) for tax positions of prior years 29 (17) (251)
Gross unrecognized tax benefit ending balance $ 4,902 $ 3,783 $ 2,795