Related Party Transactions - Balances of Receivables and Payables with Related Parties (Details) - USD ($) $ in Thousands		Mar. 31, 2021	Dec. 31, 2020
Related Party Transaction [Line Items]
Other assets		$ 5,589	$ 5,919
Loans Payable			43,541
Receivables And Payables With Related Parties
Related Party Transaction [Line Items]
Account receivables		1,912	2,278
Other receivables			247
Other assets		940	755
Loans Payable			29,754
Accounts payable		$ 623	1,584
DASAN | Receivables And Payables With Related Parties
Related Party Transaction [Line Items]
DNI direct ownership interest		19.80%
DASAN | Majority Shareholder
Related Party Transaction [Line Items]
DNI direct ownership interest		37.50%
DASAN | Majority Shareholder | Receivables And Payables With Related Parties
Related Party Transaction [Line Items]
Account receivables		$ 1,912	2,278
Other receivables			247
Other assets		940	755
Loans Payable			29,754
Accounts payable		596	1,552
DASAN | Affiliated Entity | Receivables And Payables With Related Parties
Related Party Transaction [Line Items]
Accounts payable	[1]	$ 27	$ 32

[1] Dasan Invest holds 19.8% of DNI’s shares.