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Business Combination - Summary of Purchase Price Allocation of Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands | Jun. 30, 2023 | Dec. 31, 2022 | Jul. 15, 2022
--- | --- | --- | ---
Net Assets: |  |  |
Goodwill | $ 388,163 | $ 381,724 |
Adtran Networks SE [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Total purchase price |  |  | $ 578,260
Noncontrolling interest |  |  | 316,415
Net Assets: |  |  |
Cash and cash equivalents |  |  | 44,003
Accounts receivable |  |  | 114,659
Other receivables |  |  | 1,457
Inventory |  |  | 200,331
Prepaid expenses and other current assets |  |  | 28,208
Property plant and equipment |  |  | 55,480
Deferred tax assets |  |  | 1,759
Intangibles |  |  | 403,780
Other non-current assets |  |  | 31,074
Accounts payable |  |  | (98,587)
Current unearned revenue |  |  | (26,047)
Accrued expenses and other liabilities |  |  | (59,600)
Current portion of notes payable |  |  | (25,254)
Income tax payable, net |  |  | (4,898)
Tax liabilities |  |  | (1,400)
Non-current unearned revenue |  |  | (11,498)
Pension liability |  |  | (6,820)
Other non-current liabilities |  |  | (6,094)
Non-current portion of revolving credit agreements and notes payable |  |  | (15,250)
Non-current lease obligations |  |  | (20,046)
Deferred tax liabilities |  |  | (61,040)
Total net assets acquired |  |  | 544,217
Goodwill | $ 350,500 |  | $ 350,458

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