CONDENSED CONSOLIDATED STATEMENTS OF EQUITY - USD ($) $ in Thousands	Redeemable Preferred Units Total ATNI Stockholders' Equity	Redeemable Preferred Units Retained Earnings	Redeemable Preferred Units	Redeemable Common Units Total ATNI Stockholders' Equity	Redeemable Common Units Retained Earnings	Redeemable Common Units Non-Controlling Interests	Redeemable Common Units	Total ATNI Stockholders' Equity	Common Stock	Treasury Stock, at cost	Additional Paid In Capital	Retained Earnings	Other Comprehensive Income/(Loss)	Non-Controlling Interests	Total
Balance, beginning of period at Dec. 31, 2021								$ 601,250	$ 172	$ (71,714)	$ 192,132	$ 475,887	$ 4,773	$ 101,003	$ 702,253
Increase (Decrease) in Stockholders' Equity
Purchase of shares of common stock								(2,081)		(2,081)					(2,081)
Stock-based compensation								1,310			1,310			150	1,460
Dividends declared on common stock								(2,675)				(2,675)		(263)	(2,938)
Repurchase of non-controlling interests								(278)			(278)			(2,205)	(2,483)
Accrued dividend - redeemable preferred units	$ 1,116	$ 1,116	$ 1,116
Comprehensive income:
Net loss								(2,040)				(2,040)		83	(1,957)
Other comprehensive income (loss)								422					422		422
Comprehensive loss								(1,618)				(2,040)	422	83	(1,535)
Balance, end of period at Mar. 31, 2022								594,792	172	(73,795)	193,164	470,056	5,195	98,768	693,560
Balance, beginning of period at Dec. 31, 2022								580,813	173	(73,825)	198,449	449,806	6,210	96,016	676,829
Increase (Decrease) in Stockholders' Equity
Purchase of shares of common stock								(2,840)		(2,840)					(2,840)
Stock-based compensation								1,634			1,634			144	1,778
Dividends declared on common stock								(3,315)				(3,315)			(3,315)
Repurchase of non-controlling interests								(68)			(68)			(527)	(595)
Deemed dividend	$ (1,045)	$ (1,045)	$ (1,045)	$ (2,531)	$ (2,531)	$ 2,820	$ 289
Comprehensive income:
Net loss								(5,885)				(5,885)		(1,170)	(7,055)
Other comprehensive income (loss)								480					480		480
Comprehensive loss								(5,405)				(5,885)	480	(1,170)	(6,575)
Balance, end of period at Mar. 31, 2023								$ 567,243	$ 173	$ (76,665)	$ 200,015	$ 437,030	$ 6,690	$ 97,283	$ 664,526