CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
REVENUE:
Total revenue	$ 182,213	$ 166,760	$ 533,730	$ 415,135
OPERATING EXPENSES (excluding depreciation and amortization unless otherwise indicated):
Selling, general and administrative	58,056	53,360	173,575	131,705
Transaction-related charges	3,416	5,696	4,381	7,823
Depreciation and amortization	33,312	28,875	100,421	68,693
Amortization of intangibles from acquisitions	3,236	3,480	9,744	4,324
(Gain) Loss on disposition of long-lived assets	484	(256)	3,876	605
Total operating expenses	180,774	167,742	530,458	409,864
Income from operations	1,439	(982)	3,272	5,271
OTHER INCOME (EXPENSE)
Interest income	38	42	41	83
Interest expense	(5,513)	(3,438)	(13,107)	(5,723)
Other income	1,904	(385)	3,379	1,923
Other income (expense), net	(3,571)	(3,781)	(9,687)	(3,717)
INCOME BEFORE INCOME TAXES	(2,132)	(4,763)	(6,415)	1,554
Income tax benefit	(360)	(288)	(1,378)	(1,535)
NET INCOME (LOSS)	(1,772)	(4,475)	(5,037)	3,089
Net (income) loss attributable to noncontrolling interests, net of tax expense (benefit) of $(0.8) million, $(1.2) million, $(1.3) million, and $(0.8) million, respectively.	(1,011)	1,856	782	(986)
NET INCOME (LOSS) ATTRIBUTABLE TO ATN INTERNATIONAL, INC. STOCKHOLDERS	$ (2,783)	$ (2,619)	$ (4,255)	$ 2,103
NET INCOME (LOSS) PER WEIGHTED AVERAGE SHARE ATTRIBUTABLE TO ATN INTERNATIONAL, INC. STOCKHOLDERS:
Basic (in dollars per share)	$ (0.25)	$ (0.22)	$ (0.49)	$ 0.08
Diluted (in dollars per share)	$ (0.25)	$ (0.22)	$ (0.49)	$ 0.08
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING:
Basic (in shares)	15,763	15,860	15,746	15,891
Diluted (in shares)	15,763	15,860	15,746	15,901
DIVIDENDS PER SHARE APPLICABLE TO COMMON STOCK	$ 0.17	$ 0.17	$ 0.51	$ 0.51
Communication services
REVENUE:
Total revenue	$ 173,977	$ 155,298	$ 512,315	$ 378,897
OPERATING EXPENSES (excluding depreciation and amortization unless otherwise indicated):
Cost of services	78,949	70,732	229,821	168,717
Construction
REVENUE:
Total revenue	3,332	6,417	8,615	28,049
OPERATING EXPENSES (excluding depreciation and amortization unless otherwise indicated):
Cost of services	3,321	5,855	8,640	27,997
Other revenue
REVENUE:
Total revenue	$ 4,904	$ 5,045	$ 12,800	$ 8,189