Segment Reporting - Selected Financial Data for Segments (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
External revenue
Service revenue and other	$ 287,379	$ 267,371	$ 245,239
Operating expenses
Cost of services exclusive of depreciation and amortization	106,101	107,546	102,299
Selling, general and administrative	103,631	92,392	82,451
Restructuring expense	0	1,251	1,727
Impairment expense	2,552	5,241	5,986
Depreciation and amortization	65,471	68,899	55,206
Total operating expenses	277,755	275,329	247,669
Operating income (loss)	9,624	(7,958)	(2,430)
Capital expenditures	256,550	189,609	160,101
Operating Segments \| Broadband
External revenue
Service revenue and other	269,253	249,015	228,080
Operating expenses
Selling, general and administrative	62,834	56,776	47,840
Restructuring expense		849	202
Impairment expense	2,552	5,241	5,986
Depreciation and amortization	61,897	63,175	47,937
Total operating expenses	228,124	228,308	199,248
Operating income (loss)	41,129	20,707	28,832
Capital expenditures	254,929	188,729	156,131
Operating Segments \| Tower
External revenue
Service revenue and other	18,635	18,919	17,704
Operating expenses
Selling, general and administrative	1,412	1,279	1,197
Restructuring expense		0	0
Impairment expense	0	0	0
Depreciation and amortization	2,103	2,416	2,053
Total operating expenses	9,140	9,407	8,688
Operating income (loss)	9,495	9,512	9,016
Capital expenditures	1,480	620	977
Intersegment Eliminations
External revenue
Service revenue and other	0	0	9,225
Intersegment Eliminations \| Broadband
External revenue
Service revenue and other	348	185	4,459
Intersegment Eliminations \| Tower
External revenue
Service revenue and other	161	378	5,311
Intersegment Eliminations \| Corporate & Eliminations
External revenue
Service revenue and other	(509)	(563)	(545)
Corporate & Eliminations
Operating expenses
Selling, general and administrative	39,385	34,337	33,414
Restructuring expense		402	1,525
Impairment expense	0	0	0
Depreciation and amortization	1,471	3,308	5,216
Total operating expenses	40,491	37,614	39,733
Operating income (loss)	(41,000)	(38,177)	(40,278)
Capital expenditures	141	260	2,993
Residential & SMB - Cable Markets
External revenue
Service revenue and other	176,879	175,681	169,183
Residential & SMB - Cable Markets \| Operating Segments \| Broadband
External revenue
Service revenue and other	176,879	175,681	169,183
Residential & SMB - Cable Markets \| Operating Segments \| Tower
External revenue
Service revenue and other	0	0	0
Residential & SMB - Glo Fiber Markets
External revenue
Service revenue and other	35,103	18,293	8,347
Residential & SMB - Glo Fiber Markets \| Operating Segments \| Broadband
External revenue
Service revenue and other	35,103	18,293	8,347
Residential & SMB - Glo Fiber Markets \| Operating Segments \| Tower
External revenue
Service revenue and other	0	0	0
Commercial Fiber
External revenue
Service revenue and other	42,132	38,821	30,842
Commercial Fiber \| Operating Segments \| Broadband
External revenue
Service revenue and other	42,132	38,821	30,842
Commercial Fiber \| Operating Segments \| Tower
External revenue
Service revenue and other	0	0	0
RLEC & Other
External revenue
Service revenue and other	14,791	16,035	15,249
RLEC & Other \| Operating Segments \| Broadband
External revenue
Service revenue and other	14,791	16,035	15,249
RLEC & Other \| Operating Segments \| Tower
External revenue
Service revenue and other	0	0	0
Tower lease
External revenue
Service revenue and other	18,474	18,541	12,393
Tower lease \| Operating Segments \| Broadband
External revenue
Service revenue and other	0	0	0
Tower lease \| Operating Segments \| Tower
External revenue
Service revenue and other	18,474	18,541	12,393
Service revenue and other
External revenue
Service revenue and other	287,379	267,371	236,014
Service revenue and other \| Operating Segments \| Broadband
External revenue
Service revenue and other	268,905	248,830	223,621
Service revenue and other \| Operating Segments \| Tower
External revenue
Service revenue and other	18,474	18,541	12,393
Cost of services
Operating expenses
Cost of services exclusive of depreciation and amortization	106,101	107,546	102,299
Cost of services \| Operating Segments \| Broadband
Operating expenses
Cost of services exclusive of depreciation and amortization	100,841	102,267	97,283
Cost of services \| Operating Segments \| Tower
Operating expenses
Cost of services exclusive of depreciation and amortization	5,625	5,712	5,438
Cost of services \| Corporate & Eliminations
Operating expenses
Cost of services exclusive of depreciation and amortization	$ (365)	$ (433)	$ (422)

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