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Subsequent Events (Details) $ in Millions	1 Months Ended	3 Months Ended
	Jul. 31, 2023 USD ($) county	Jun. 30, 2023 county	Jun. 30, 2022 county
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Broadband licenses granted, number of counties		9	11
Collaborative Arrangement, Transaction with Party to Collaborative Arrangement | Xcel Energy Services Inc. | Subsequent Event
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Broadband licenses granted, number of counties	14
Milestone payment received | $	$ 21.2

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Broadband Licenses Granted, Number of Counties

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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 808
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479402/808-10-50-1

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