CONSOLIDATED STATEMENTS OF EQUITY - USD ($) $ in Thousands	Redeemable Preferred Units	Redeemable Common Units	Total ATNI Stockholders' Equity	Common Stock	Treasury Stock, at cost	Additional Paid In Capital	Retained Earnings	Redeemable Common Units.	Accumulated Other Comprehensive Income/(Loss)	Non-Controlling Interests	Total
Balance, beginning of period at Dec. 31, 2018			$ 695,387	$ 172	$ (48,547)	$ 181,778	$ 563,593		$ (1,609)	$ 127,937	$ 823,324
Increase (Decrease) in Stockholders' Equity
Purchase of shares of common stock			(2,582)		(2,582)						(2,582)
Stock-based compensation			5,922			5,922				462	6,384
Exercise of stock options			771			771					$ 771
Exercised (in shares)											17,000
Dividends declared on common stock			(10,897)				(10,897)				$ (10,897)
Distributions to non-controlling interests										(7,195)	(7,195)
Repurchase of non-controlling interests										(4,504)	(4,504)
Investments made by minority shareholders in consolidated affiliates										488	488
Comprehensive income (loss):
Net income (loss)			(10,806)				(10,806)			12,773	1,967
Other comprehensive income (loss)			(1,673)						(1,673)		(1,673)
Comprehensive income (loss)			(12,479)				(10,806)		(1,673)	12,773	294
Balance, end of period at Dec. 31, 2019			676,122	172	(51,129)	188,471	541,890		(3,282)	129,961	806,083
Ending balance at Dec. 31, 2020	$ 0	$ 0									0
Increase (Decrease) in Stockholders' Equity
Purchase of shares of common stock			(8,327)		(8,327)						(8,327)
Stock-based compensation			5,603			5,603				309	5,912
Dividends declared on common stock			(10,867)				(10,867)				(10,867)
Distributions to non-controlling interests										(12,378)	(12,378)
Repurchase of non-controlling interests			(5,020)			(5,020)				(23,919)	(28,939)
Investments made by minority shareholders in consolidated affiliates			(1,300)			(1,300)				1,300
Comprehensive income (loss):
Net income (loss)			(14,122)				(14,122)			13,414	(708)
Other comprehensive income (loss)			3,560						3,560		3,560
Comprehensive income (loss)			(10,562)				(14,122)		3,560	13,414	2,852
Balance, end of period at Dec. 31, 2020			645,649	172	(59,456)	187,754	516,901	$ 0	278	108,687	754,336
Increase (decrease) in temporary equity
Issuance of redeemable units	48,334	22,640
Accrued preferred dividend	1,962										1,962
Deemed dividend - redeemable common unit		6,164									6,164
Net income (loss)		(6,164)									(6,164)
Total comprehensive income		(6,164)									(6,164)
Ending balance at Dec. 31, 2021	$ 50,296	$ 22,640									72,936
Increase (Decrease) in Stockholders' Equity
Purchase of shares of common stock			(12,258)		(12,258)						(12,258)
Stock-based compensation			6,182			6,182				334	6,516
Exercise of stock options			383			383					383
Non-controlling interests in equity acquired										796	796
Dividends declared on common stock			(10,780)				(10,780)			(5,468)	(16,248)
Accrued dividend			(1,962)				(1,962)				(1,962)
Repurchase of non-controlling interests			(2,187)			(2,187)				(10,809)	(12,996)
Deemed dividend							(6,164)	6,164
Comprehensive income (loss):
Net income (loss)			(28,272)				(22,108)	(6,164)		7,463	(20,809)
Other comprehensive income (loss)			4,495						4,495		4,495
Comprehensive income (loss)			(23,777)				(22,108)	$ (6,164)	4,495	7,463	(16,314)
Balance, end of period at Dec. 31, 2021			$ 601,250	$ 172	$ (71,714)	$ 192,132	$ 475,887		$ 4,773	$ 101,003	$ 702,253