CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
REVENUE:
Total revenue	$ 122,132	$ 138,795	$ 373,492	$ 328,471
OPERATING EXPENSES (excluding depreciation and amortization unless otherwise indicated):
Termination and access fees	27,387	34,359	85,758	77,872
Engineering and operations	18,852	19,372	57,881	40,621
Sales, marketing and customer service	8,440	8,377	26,176	21,814
Equipment expense	3,167	3,390	8,720	10,751
General and administrative	26,620	26,854	76,969	62,525
Transaction-related charges	61	2,091	887	16,156
Restructuring charges				1,785
Depreciation and amortization	21,157	21,866	65,904	52,913
Impairment of long-lived assets		349		11,425
Bargain purchase gain				(7,304)
(Gain) loss on disposition of long-lived assets	(593)	56	513	27
Loss on damaged assets and other hurricane related charges	36,566		36,566
Total operating expenses	141,657	116,714	359,374	288,585
Income from operations	(19,525)	22,081	14,118	39,886
OTHER INCOME (EXPENSE)
Interest income	453	236	1,087	929
Interest expense	(2,098)	(1,787)	(6,567)	(3,674)
Loss on deconsolidation of subsidiary			(529)
Other income (expense)	(690)	766	(1,751)	643
Other expense, net	(2,335)	(785)	(7,760)	(2,102)
INCOME BEFORE INCOME TAXES	(21,860)	21,296	6,358	37,784
Income taxes	(884)	9,602	4,839	17,178
NET INCOME (LOSS)	(20,976)	11,694	1,519	20,606
Net income attributable to non-controlling interests, net of tax expense of $0.3 million, $0.6 million, $0.7 million, and $1.0 million, respectively.	(3,784)	(4,523)	(13,535)	(10,400)
NET INCOME (LOSS) ATTRIBUTABLE TO ATN INTERNATIONAL, INC. STOCKHOLDERS	$ (24,760)	$ 7,171	$ (12,016)	$ 10,206
NET INCOME (LOSS) PER WEIGHTED AVERAGE SHARE ATTRIBUTABLE TO ATN INTERNATIONAL, INC. STOCKHOLDERS:
Basic (in dollars per share)	$ (1.53)	$ 0.44	$ (0.74)	$ 0.63
Diluted (in dollars per share)	$ (1.53)	$ 0.44	$ (0.74)	$ 0.63
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING:
Basic (in shares)	16,178	16,148	16,177	16,128
Diluted (in shares)	16,178	16,241	16,177	16,228
DIVIDENDS PER SHARE APPLICABLE TO COMMON STOCK (in dollars per share)	$ 0.17	$ 0.34	$ 0.85	$ 0.98
Wireless
REVENUE:
Total revenue	$ 57,254	$ 61,151	$ 167,945	$ 177,300
Wireline
REVENUE:
Total revenue	56,309	66,129	181,568	122,190
Renewable energy
REVENUE:
Total revenue	4,974	5,784	14,765	16,935
Equipment and other
REVENUE:
Total revenue	$ 3,595	$ 5,731	$ 9,214	$ 12,046