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Foreign Currency Loss, Net	3 Months Ended
Foreign Currency Loss, Net	Mar. 31, 2022
Foreign Currency [Abstract]
Foreign Currency Loss, Net	10. Foreign Currency Loss, Net Net foreign currency gain or loss includes non-cash translation gain or loss associated with intercompany balances. A substantial portion of the Company’s net foreign currency gain or loss is non-cash translation gain or loss associated with intercompany long-term loans to the Company’s Korean subsidiary. The loans are denominated in U.S. dollars and are affected by changes in the exchange rate between the Korean won and the U.S. dollar. As of March 31, 2022 and December 31, 2021, the outstanding intercompany loan balances including accrued interest between the Korean subsidiary and the Dutch subsidiary were $ 348,477 thousand and $344,411 thousand, respectively. The Korean won to U.S. dollar exchange rates were 1,210.8:1 and 1,185.5:1 using the first base rate as of March 31, 2022 and December 31, 2021, respectively, as quoted by the KEB Hana Bank.