CONDENSED CONSOLIDATED STATEMENTS OF EQUITY - USD ($) $ in Thousands	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, 2023	$ 541,073	$ 173	$ (90,447)	$ 205,797	$ 417,282	$ 8,268	$ 96,730	$ 637,803
Increase (Decrease) in Stockholders' Equity
Purchase of shares of common stock	(2,016)		(2,016)					(2,016)
Stock-based compensation	1,754			1,754			155	1,909
Dividends declared on common stock	(3,720)				(3,720)		(40)	(3,760)
Accrued dividend - redeemable preferred units	(1,348)				(1,348)			(1,348)
Deemed dividend - redeemable common units	(868)				(868)		3,512	2,644
Comprehensive income:
Net loss	(6,315)				(6,315)		(1,633)	(7,948)
Other comprehensive income	1,432					1,432		1,432
Total comprehensive income (loss)	(4,883)				(6,315)	1,432	(1,633)	(6,516)
Balance, end of period at Mar. 31, 2024	529,992	173	(92,463)	207,551	405,031	9,700	98,724	628,716
Balance, beginning of period at Dec. 31, 2024	489,493	179	(102,413)	212,759	368,191	10,777	105,958	595,451
Increase (Decrease) in Stockholders' Equity
Issuance of common units		1		(1)
Purchase of shares of common stock	(730)		(730)					(730)
Stock-based compensation	1,611			1,611			293	1,904
Dividends declared on common stock	(3,652)				(3,652)			(3,652)
Repurchase of noncontrolling interests	(7)			(7)			(38)	(45)
Accrued dividend - redeemable preferred units	(1,458)				(1,458)			(1,458)
Deemed dividend - redeemable common units	(3,425)				(3,425)		3,631	206
Comprehensive income:
Net loss	(8,928)				(8,928)		(2,459)	(11,387)
Other comprehensive income	431					431		431
Total comprehensive income (loss)	(8,497)				(8,928)	431	(2,459)	(10,956)
Balance, end of period at Mar. 31, 2025	$ 473,335	$ 180	$ (103,143)	$ 214,362	$ 350,728	$ 11,208	$ 107,385	$ 580,720