CONSOLIDATED INCOME STATEMENTS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
REVENUE:
Total revenue	$ 457,003	$ 355,369	$ 336,347
OPERATING EXPENSES (excluding depreciation and amortization unless otherwise indicated):
Termination and access fees	116,427	77,806	77,888
Engineering and operations	52,902	39,582	30,954
Sales and marketing	31,050	23,898	21,664
Equipment expense	14,342	14,803	13,338
General and administrative	94,293	59,436	52,734
Transaction-related charges	16,279	7,182	2,959
Restructuring charges	1,785
Depreciation and amortization	75,980	56,890	51,234
Impairment of goodwill and long-lived assets	11,425
Bargain purchase gain	(7,304)
Gain on disposition of long-lived assets	27	(2,823)
Total operating expenses	407,206	276,774	250,771
Income from operations	49,797	78,595	85,576
OTHER INCOME (EXPENSE)
Interest income	1,239	588	788
Interest expense	(5,362)	(3,180)	(1,208)
Loss on deconsolidation of subsidiary		(19,937)
Other income, net	(300)	135	1,012
Other expense, net	(4,423)	(22,394)	592
INCOME FROM CONTINUING OPERATIONS BEFORE INCOME TAXES	45,374	56,201	86,168
Income taxes	21,160	24,137	28,148
INCOME FROM CONTINUING OPERATIONS	24,214	32,064	58,020
INCOME FROM DISCONTINUED OPERATIONS:
Income from discontinued operations, net of tax		1,092	1,102
NET INCOME	24,214	33,156	59,122
Net income attributable to non-controlling interests, net of tax expense of $1.3 million, $1.6 million, and $1.6 million, respectively.	(12,113)	(16,216)	(10,970)
NET INCOME ATTRIBUTABLE TO ATN INTERNATIONAL, INC. STOCKHOLDERS	$ 12,101	$ 16,940	$ 48,152
NET INCOME PER WEIGHTED AVERAGE BASIC SHARE ATTRIBUTABLE TO ATN INTERNATIONAL, INC. STOCKHOLDERS:
Continuing operations (in dollars per share)	$ 0.75	$ 0.99	$ 2.96
Discontinued operations (in dollars per share)		0.07	0.07
Total (in dollars per share)	0.75	1.06	3.03
NET INCOME PER WEIGHTED AVERAGE DILUTED SHARE ATTRIBUTABLE TO ATN INTERNATIONAL, INC. STOCKHOLDERS:
Continuing operations (in dollars per share)	0.75	0.98	2.94
Discontinued operations (in dollars per share)		0.07	0.07
Total (in dollars per share)	$ 0.75	$ 1.05	$ 3.01
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING:
Basic (in shares)	16,131	16,022	15,898
Diluted (in shares)	16,227	16,142	16,013
DIVIDENDS PER SHARE APPLICABLE TO COMMON STOCK (in dollars per share)	$ 1.32	$ 1.22	$ 1.12
Wireless
REVENUE:
Total revenue	$ 228,798	$ 237,042	$ 241,690
Wireline
REVENUE:
Total revenue	188,019	86,485	85,284
Renewable energy
REVENUE:
Total revenue	21,608	21,040
Equipment and other
REVENUE:
Total revenue	$ 18,578	$ 10,802	$ 9,373