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Government Grants (Details) - USD ($) $ in Thousands		12 Months Ended
	Mar. 31, 2024	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Government Assistance [Line Items]
Government grants received		$ 19,238	$ 1,904	$ 0
Grants receivable		300	$ 1,900
Government assistance, liability, noncurrent		$ 3,700
Government Assistance, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]		Other Liabilities, Noncurrent
Broadband Network Grants
Government Assistance [Line Items]
Increase (decrease) in grants receivable		$ 149,800
Increase (decrease) in grants available		$ 110,600
OHIO | Horizon Transaction
Government Assistance [Line Items]
Increase in project costs	$ 57,400
Government assistance, award amount	30,100
Government grant paid to horizon up-front	$ 18,000

X

- Definition

Government Assistance, Award Amount, Upfront Payment

+ References

No definition available.

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- Definition

Increase (Decrease) in Grants Available

+ References

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- Definition

Increase (Decrease) in Grants Receivable

+ References

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- Definition

Increase in Project Costs

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- Definition

Proceeds From Government Grants Received

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- Definition

Amount of government assistance awarded that comprises amount received, receivable, and to be received unless condition for government assistance is not met. Includes, but is not limited to, government grant, assistance, incentive, award, subsidy, and loan.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 832
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483507/832-10-50-3

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- Definition

Amount of liability from government assistance, classified as noncurrent.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 832
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483507/832-10-50-3

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- Definition

Indicates line item in statement of financial position that includes liability from government assistance, classified as noncurrent.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 832
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483507/832-10-50-3

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 832
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483507/832-10-50-3

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- Definition

Carrying amount as of the balance sheet date of amounts due under the terms of governmental, corporate, or foundation grants.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(3)(a)(4))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

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