v3.26.1
Schedule H, Line 4i - Schedule of Assets (Held at End of Year) (Details) - EBP 003
$ in Thousands
12 Months Ended
Dec. 31, 2025
USD ($)
Rate
EBP, Schedule of Asset Held for Investment [Line Items]  
Plan Number 003
Entity Tax Identification Number 36-2669023
Current Value of Investment $ 1,587,315
Common/Collective Trusts  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value of Investment 1,102,886
Common Stock of Plan Sponsor and Subsidiary  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value of Investment 24,348
Mutual Funds  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value of Investment 451,942
Investment, Identifier: Array Digital Infrastructure, Inc. | Common Stock of Plan Sponsor and Subsidiary  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value of Investment 10,586 [1],[2]
Investment, Identifier: Growth Index Fund  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value of Investment 227,787 [2]
Investment, Identifier: Institutional 500 Index Trust  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value of Investment 226,315 [2]
Investment, Identifier: Institutional Total International Stock Market Index Trust  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value of Investment 150,039 [2]
Investment, Identifier: Intermediate Government/Credit Bond Index Fund F  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value of Investment 94,536 [1],[2]
Investment, Identifier: Participant Loans  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value of Investment $ 8,139 [1]
Investment, Identifier: Participant Loans | Minimum  
EBP, Schedule of Asset Held for Investment [Line Items]  
Interest Rate | Rate 4.25%
Investment, Identifier: Participant Loans | Maximum  
EBP, Schedule of Asset Held for Investment [Line Items]  
Interest Rate | Rate 9.50%
Investment, Identifier: Retirement Savings Trust II  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value of Investment $ 95,793 [2]
Investment, Identifier: Small Cap Growth Index Fund  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value of Investment 59,080 [2]
Investment, Identifier: Small Cap Value Index Fund  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value of Investment 68,628 [2]
Investment, Identifier: Target 2020 Retirement Trust I  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value of Investment 11,862 [2]
Investment, Identifier: Target 2025 Retirement Trust I  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value of Investment 33,623 [2]
Investment, Identifier: Target 2030 Retirement Trust I  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value of Investment 64,635 [2]
Investment, Identifier: Target 2035 Retirement Trust I  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value of Investment 83,615 [2]
Investment, Identifier: Target 2040 Retirement Trust I  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value of Investment 75,220 [2]
Investment, Identifier: Target 2045 Retirement Trust I  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value of Investment 88,822 [2]
Investment, Identifier: Target 2050 Retirement Trust I  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value of Investment 80,277 [2]
Investment, Identifier: Target 2055 Retirement Trust I  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value of Investment 47,991 [2]
Investment, Identifier: Target 2060 Retirement Trust I  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value of Investment 24,422 [2]
Investment, Identifier: Target 2065 Retirement Trust I  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value of Investment 8,404 [2]
Investment, Identifier: Target 2070 Retirement Trust I  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value of Investment 2,616 [2]
Investment, Identifier: Target Retirement Income Trust I  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value of Investment 11,368 [2]
Investment, Identifier: Target Retirement Income and Growth Trust I  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value of Investment 3,348 [2]
Investment, Identifier: Telephone and Data Systems, Inc. | Common Stock of Plan Sponsor and Subsidiary  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value of Investment 13,762 [1],[2]
Investment, Identifier: U.S. Government Select Portfolio  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value of Investment 110 [1],[2]
Investment, Identifier: Value Index Fund  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value of Investment $ 96,337 [2]
[1] * Represents a party-in-interest, as defined by ERISA.
[2] ** The cost of participant-directed investments is not required to be disclosed.