CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
Net income (loss)	$ (20,809)	$ (708)	$ 1,967
Other comprehensive income (loss):
Foreign currency translation adjustment, net of tax expense of $(0.2) million, $0.4 million, and $0, respectively	(689)	37	(1,041)
Unrealized gain (loss) on derivatives	170	(101)	(187)
Reclassification of foreign currency losses on assets held for sale		6,036
Projected pension and postretirement benefit obligations, net of tax expense of $(0.1) million, $0.1 million and $0.1 million, respectively	5,014	(2,412)	(445)
Other comprehensive income (loss), net of tax	4,495	3,560	(1,673)
Comprehensive income (loss)	(16,314)	2,852	294
Less: Comprehensive income attributable to noncontrolling interests	(1,299)	(13,414)	(12,773)
Comprehensive income (loss) attributable to ATN International, Inc.	$ (17,613)	$ (10,562)	$ (12,479)