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Divestitures	3 Months Ended
Divestitures	Mar. 31, 2026
Divestitures [Abstract]
Divestitures	Note 6 Divestitures Array In addition to the divestiture of Array's wireless operations, as disclosed in Note 2 — Discontinued Operations, other divestiture transactions are disclosed below. On January 13, 2026, Array closed on the sale of certain 3.45 GHz and 700 MHz wireless spectrum licenses to New Cingular Wireless PCS, LLC (AT&T), a subsidiary of AT&T Inc., for $1,018.0 million and TDS recorded a book gain of $150.9 million ($114.7 million net of tax expense) during the first quarter of 2026. The book gain recorded at TDS is lower than the book gain recorded at Array due primarily to transaction costs paid by TDS. On October 17, 2024, Array entered into a License Purchase Agreement (Verizon License Purchase Agreement) with Verizon Communications Inc. (Verizon) to sell certain AWS, Cellular and PCS wireless spectrum licenses and agreed to grant Verizon certain rights to lease such licenses prior to the transaction close for total proceeds of $1,000.0 million. As of March 31, 2026, the book value of the wireless spectrum licenses to be sold was $588.8 million and is classified as held for sale in the Consolidated Balance Sheet. The transaction is expected to close in the second or third quarter of 2026, subject to regulatory approval and other customary closing conditions. On August 29, 2025, Array entered into a License Purchase Agreement (T-Mobile License Purchase Agreement) with T-Mobile to sell certain 700 MHz wireless spectrum licenses and agreed to grant T-Mobile certain rights to lease such licenses prior to the transaction close for total proceeds of $85.0 million. As of March 31, 2026, the book value of the wireless spectrum licenses to be sold was $64.3 million, of which $53.1 million has received regulatory approval and is classified as held for sale in the Consolidated Balance Sheet. See Note 12 — Subsequent Events for additional information. As part of the T-Mobile transaction to sell the wireless operations, Array entered into a Put/Call Agreement with T-Mobile whereby T-Mobile has the right to call certain spectrum assets and Array has the right to put certain spectrum assets to T-Mobile for an aggregate agreed upon price of $106.0 million. The call option notice period started on May 24, 2024, and the put exercise period started on August 1, 2025. Both periods end on July 31, 2026. There was no cash exchanged at the inception of the Put/Call Agreement. All license transfers pursuant to any put/call are subject to Federal Communications Commission (FCC) approval. Array accounted for this instrument as a net written call option and wrote off the entire fair value in 2025. In September 2025, T-Mobile exercised $86.4 million of the call option. As of March 31, 2026, the book value of the spectrum licenses subject to the call notice was $86.4 million and is classified as held for sale in the Consolidated Balance Sheet. The transaction is expected to close in May 2026, subject to customary closing conditions.