Related Party Transactions - Schedule of Account Receivable and Payable of Related Party Transactions (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
LSE, its Subsidiaries and Affiliates
Related Party Transaction [Line Items]
Accounts receivable		$ 184
Accounts payable		2,154
Keylink
Related Party Transaction [Line Items]
Accounts receivable	$ 35,365	31,598
Accounts payable	31,247	28,244
Nuvoton
Related Party Transaction [Line Items]
Accounts receivable	10
Accounts payable	796	1,055
JCP
Related Party Transaction [Line Items]
Accounts payable	$ 357	$ 173