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Business Segment Information | 3 Months Ended
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Mar. 31, 2026
Segment Reporting [Abstract] |
Business Segment Information | Note 11 Business Segment Information TDS has the following reportable segments: TDS Telecom and Array. TDS Telecom generates its revenues by providing broadband, video, voice and wireless services. Array generates its revenues primarily by leasing tower space on Array-owned towers to customers. The reportable segments are billed for services they receive from TDS, consisting primarily of information processing, accounting, finance, and general management services. Such billings are based on expenses specifically identified to the reportable segments and on allocations of common expenses. Management believes the method used to allocate common expenses is reasonable and that all expenses and costs applicable to the reportable segments are reflected in the accompanying business segment information. Adjusted earnings before interest, taxes, depreciation, amortization and accretion (Adjusted EBITDA) is the segment measure of profit or loss reported to the chief operating decision maker for purposes of assessing the segments' performance and making capital allocation decisions. Adjusted EBITDA is a non-GAAP financial measure that shows adjusted earnings before interest, taxes, depreciation, amortization and accretion, gains and losses, and expenses related to the strategic alternatives review. TDS believes Adjusted EBITDA is a useful measure of TDS’ operating results before significant recurring non-cash charges, gains and losses, and other items as presented below as it provides additional relevant and useful information to investors and other users of TDS' financial data in evaluating the effectiveness of its operations and underlying business trends in a manner that is consistent with management's evaluation of business performance. TDS’ chief operating decision maker is its President and Chief Executive Officer. Financial data from continuing operations for TDS’ reportable segments for the three months ended March 31, 2026 and 2025, is as follows:
Three Months Ended March 31, 2026 | TDS Telecom | Array | Total
(Dollars in thousands) |  |  |
Revenues from external customers | $ | 249,568 |  | $ | 51,967 |  | $ | 301,535 |
Intersegment revenues | 4 |  | 45 |  | 49 |
| 249,572 |  | 52,012 |  | 301,584 |
Reconciliation of revenue: |  |  |
All Other revenues 1 |  |  | 7,915 |
Elimination of intersegment revenues |  |  | (49) |
Total operating revenues |  |  | $ | 309,450 |
Add back or deduct 2: |  |  |
Cost of operations (excluding Depreciation, amortization and accretion reported below) | (97,182) |  | (21,609) |  |
Cost of equipment and products | (111) |  | — |  |
Selling, general and administrative | (81,061) |  | (12,745) |  |
Expenses related to strategic alternatives review (included in Selling, general and administrative) | 87 |  | 187 |  |
Equity in earnings of unconsolidated entities | — |  | 40,408 |  |
Interest and dividend income | 1,145 |  | 4,223 |  |
Other segment items | 1,388 |  | (14) |  |
Segment Adjusted EBITDA (Non-GAAP) | $ | 73,838 |  | $ | 62,462 |  | $ | 136,300 |
Reconciliation of Segment Adjusted EBITDA to Income before income taxes: |  |  |
All Other income (loss) before income taxes 1 |  |  | 2,455 |
Short-term imputed spectrum lease income |  |  | 34,200 |
Depreciation, amortization and accretion |  |  | (85,159) |
Expenses related to strategic alternatives review (included in Selling, general and administrative) |  |  | (274) |
Loss on asset disposals, net |  |  | (1,737) |
Loss on sale of business and other exit costs, net |  |  | (1,562) |
Gain on license sales and exchanges, net |  |  | 156,635 |
Interest expense |  |  | (7,023) |
Income before income taxes |  |  | $ | 233,835 |
Other segment disclosures |  |  |  |  |
Three Months Ended or as of March 31, 2026 | TDS Telecom | Array | Segment Total | All Other 1 | TDS Consolidated Total
Short-term imputed spectrum lease income | $ | — |  | $ | 34,200 |  | $ | 34,200 |  | $ | — |  | $ | 34,200 |
Depreciation, amortization and accretion | (72,555) |  | (12,604) |  | (85,159) |  | (784) |  | (85,943) |
Loss on asset disposals, net | (833) |  | (904) |  | (1,737) |  | (73) |  | (1,810) |
Loss on sale of business and other exit costs, net | (1,562) |  | — |  | (1,562) |  | — |  | (1,562) |
Gain (loss) on license sales and exchanges, net | — |  | 156,635 |  | 156,635 |  | (5,757) |  | 150,878 |
Interest expense | 157 |  | (7,180) |  | (7,023) |  | 1,702 |  | (5,321) |
Investments in unconsolidated entities | 3,947 |  | 435,061 |  | 439,008 |  | 47,124 |  | 486,132 |
Total assets | 3,032,227 |  | 3,964,687 |  | 6,996,914 |  | 1,214,413 |  | 8,211,327 |
Capital expenditures from continuing operations | $ | 125,963 |  | $ | 8,645 |  | $ | 134,608 |  | $ | 1,621 |  | $ | 136,229 |
Three Months Ended March 31, 2025 | TDS Telecom | Array | Total
(Dollars in thousands) |  |  |
Revenues from external customers | $ | 256,559 |  | $ | 26,984 |  | $ | 283,543 |
Intersegment revenues | 801 |  | — |  | 801 |
| 257,360 |  | 26,984 |  | 284,344 |
Reconciliation of revenue: |  |  |
All Other revenues 1 |  |  | 6,890 |
Elimination of intersegment revenues |  |  | (801) |
Total operating revenues |  |  | $ | 290,433 |
Add back or deduct 2: |  |  |
Cost of operations (excluding Depreciation, amortization and accretion reported below) | (100,964) |  | (16,290) |  |
Cost of equipment and products | (263) |  | — |  |
Selling, general and administrative | (83,148) |  | (29,202) |  |
Expenses related to strategic alternatives review (included in Selling, general and administrative) | — |  | 1,145 |  |
Equity in earnings of unconsolidated entities | — |  | 35,927 |  |
Interest and dividend income | 1,401 |  | 2,658 |  |
Other segment items | 1,937 |  | — |  |
Segment Adjusted EBITDA (Non-GAAP) | $ | 76,323 |  | $ | 21,222 |  | $ | 97,545 |
Reconciliation of Segment Adjusted EBITDA to Income before income taxes: |  |  |
All Other income (loss) before income taxes 1 |  |  | (22,283) |
Depreciation, amortization and accretion |  |  | (83,433) |
Expenses related to strategic alternatives review (included in Selling, general and administrative) |  |  | (1,145) |
Loss on asset disposals, net |  |  | (1,888) |
Loss on sale of business and other exit costs, net |  |  | (24) |
Gain on license sales and exchanges, net |  |  | 1,100 |
Interest expense |  |  | (2,202) |
Income (loss) before income taxes |  |  | $ | (12,330) |
Other segment disclosures |  |  |  |  |
Three Months Ended or as of March 31, 2025 | TDS Telecom | Array | Segment Total | All Other 1 | TDS Consolidated Total
Depreciation, amortization and accretion | $ | (71,440) |  | $ | (11,993) |  | $ | (83,433) |  | $ | (896) |  | $ | (84,329) |
Loss on asset disposals, net | (1,662) |  | (226) |  | (1,888) |  | — |  | (1,888) |
Gain (loss) on sale of business and other exit costs, net | (24) |  | — |  | (24) |  | 1,022 |  | 998 |
Gain on license sales and exchanges, net | — |  | 1,100 |  | 1,100 |  | — |  | 1,100 |
Interest expense | 1,465 |  | (3,667) |  | (2,202) |  | (21,707) |  | (23,909) |
Investments in unconsolidated entities | 3,942 |  | 479,127 |  | 483,069 |  | 43,614 |  | 526,683 |
Total assets | 2,906,310 |  | 4,865,842 |  | 7,772,152 |  | 264,663 |  | 8,036,815 |
Capital expenditures from continuing operations | $ | 58,870 |  | $ | 4,840 |  | $ | 63,710 |  | $ | 433 |  | $ | 64,143 |
1"All Other" represents TDS' non-reportable other business activities that do not meet the quantitative thresholds for being a reportable segment and includes cash balances under terms of the TDS cash management arrangement. 2 The significant segment expense categories and amounts align with the segment-level information that is regularly provided to the chief operating decision maker. Intersegment expenses are included within the amounts shown.

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