Debt and Other Financing Arrangements - Paniolo Fiber Assets Financing - Narrative (Details) - USD ($) $ in Millions		3 Months Ended
Sep. 07, 2021	Sep. 30, 2021
Line Of Credit Facility [Line Items]
Credit agreement term	5 years
Paniolo Fiber Assets [Member]
Line Of Credit Facility [Line Items]
Credit agreement term		5 years
Senior secured term loan facility		$ 23.0
Paniolo Fiber Assets [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Line Of Credit Facility [Line Items]
Debt Instrument, Basis Spread on Variable Rate		3.00%

Face (par) amount of debt instrument at time of issuance.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant