Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended		12 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2018	Dec. 31, 2017
Effective tax rates reconciliation
Statutory federal income tax rate (as a percent)				21.00%	21.00%	21.00%	35.00%
Annual income tax rate (as a percent)				46.70%	35.70%
Effective tax rate relates to excess foreign tax credits				14.90%	9.40%
Annual effective rate relates to the required valuation allowance (as a percent)				14.90%	9.40%
Income tax expense (benefit)	$ 1,785		$ 2,884	$ 3,053	$ 1,209
U.S.
Effective tax rates reconciliation
Annual income tax rate (as a percent)				31.80%	26.30%
PANTAYA
Effective tax rates reconciliation
Gain related to the step acquisition		$ 30,100		$ 30,100