Related Party Transactions - Additional Information (Details) $ in Thousands, ₩ in Billions	3 Months Ended		6 Months Ended
	Jun. 30, 2023 USD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2023 USD ($)	Jun. 30, 2022 USD ($)	Mar. 31, 2023 USD ($)	Mar. 31, 2023 KRW (₩)	Dec. 31, 2022 USD ($)
Related Party Transaction [Line Items]
Operating lease liability	$ 14,169		$ 14,169
Right-of-use assets from operating leases	10,541		10,541				$ 12,606
Investor | February 2023 DNI Loan
Related Party Transaction [Line Items]
DNI Loan	3,000		3,000		$ 4,100	₩ 5.0
Loan value, short term debt	3,039		3,039				5,706
Investor | Payment guarantee to Industrial Bank of Korea
Related Party Transaction [Line Items]
Amount guaranteed	$ 6,018		$ 6,018
Dasan Networks, Inc. | Investor
Related Party Transaction [Line Items]
License fee as a percent of annual sales	0.40%		0.40%
Royalty expense	$ 100	$ 100	$ 300	$ 300
Dasan Networks, Inc. | Investor | Receivables and Payables With Related Parties
Related Party Transaction [Line Items]
Loan value, short term debt	3,039		3,039				5,706
Account receivables	364		364				943
Other receivables	0		0				123
Accounts payable	1,186		1,186				1,019
Accrued and other liabilities	333		333				483
DNI
Related Party Transaction [Line Items]
Operating lease cost	100	$ 100	100	100
DNI | Investor
Related Party Transaction [Line Items]
Operating lease liability	1,500		1,500				1,700
Right-of-use assets from operating leases	1,500		$ 1,500				$ 1,700
Guarantee fee, percent			0.90%
Industrial Bank of Korea | Investor | Payment guarantee to Industrial Bank of Korea
Related Party Transaction [Line Items]
Amount guaranteed	$ 5,471		$ 5,471
DNS Korea
Related Party Transaction [Line Items]
Operating lease cost			$ 200	$ 400
DZS, Inc | Investor | Dasan Networks, Inc.
Related Party Transaction [Line Items]
DNI direct ownership interest	28.90%		28.90%