Debt - Bank and Trade Facilities - Foreign Operations (Details) $ in Thousands, ₩ in Billions	Sep. 30, 2023 USD ($)	Sep. 30, 2023 KRW (₩)	Aug. 25, 2023 USD ($)	Aug. 25, 2023 KRW (₩)	Aug. 17, 2023 USD ($)	Aug. 17, 2023 KRW (₩)	Jul. 31, 2023 USD ($)	Jul. 31, 2023 KRW (₩)	Jun. 15, 2023 USD ($)	Jun. 15, 2023 KRW (₩)	Mar. 30, 2023 USD ($)	Mar. 30, 2023 KRW (₩)	Dec. 31, 2022 USD ($)
Short-Term Debt [Line Items]
Loan value, short term debt	$ 11,065												$ 0
Industrial Bank of Korea Loan
Short-Term Debt [Line Items]
Loan value, short term debt											$ 900	₩ 1.2
Interest rate											6.30%	6.30%
Shinhan Bank
Short-Term Debt [Line Items]
Loan value, short term debt	4,400	₩ 6.0							$ 4,700	₩ 6.0
Interest rate									5.20%	5.20%
Kookmin Bank
Short-Term Debt [Line Items]
Loan value, short term debt	1,500	2.0					$ 1,700	₩ 2.0
Interest rate							5.80%	5.80%
Hana Bank
Short-Term Debt [Line Items]
Loan value, short term debt	1,500	2.0			$ 1,500	₩ 2.0
Interest rate					5.90%	5.90%
The Export-Import Bank of Korea
Short-Term Debt [Line Items]
Loan value, short term debt	$ 3,700	₩ 5.0	$ 3,800	₩ 5.0
Interest rate			4.80%	4.80%