XML 42 R32.htm IDEA: XBRL DOCUMENT
v3.23.1

GOVERNMENT SUPPORT AND SPECTRUM MATTERS (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2023
Disaggregation of Revenue [Line Items] |
Summary of revenues | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | Three months ended | ​
​ | ​ | March 31, 2023 | ​ | March 31, 2022
Services transferred over time | ​ | ​ | ​ | ​ | ​ | ​
US Telecom | $ | 81,072 | ​ | $ | 72,290 | ​
International Telecom | ​ | 85,680 | ​ | ​ | 81,302 | ​
Total | ​ | 166,752 | ​ | ​ | 153,592 | ​
Goods and services transferred at a point in time | ​ | ​ | ​ | ​ | ​ | ​
US Telecom | ​ | 2,546 | ​ | ​ | 3,597 | ​
International Telecom | ​ | 3,259 | ​ | ​ | 2,723 | ​
Total | ​ | 5,805 | ​ | ​ | 6,320 | ​
Total revenue accounted for under ASC 606 | ​ | 172,557 | ​ | ​ | 159,912 | ​
Network Connectivity for Eligible Communities |
Disaggregation of Revenue [Line Items] |
Schedule of grant funds | ​
​ | ​ | ​
​ | Amount
Grants awarded, December 31, 2022 | $ | 80,197
New grants | ​ | 4,364
Grants awarded, March 31, 2023 | $ | 84,561
Communication services |
Disaggregation of Revenue [Line Items] |
Summary of revenues | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | Three months ended
​ | March 31, 2023
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | US Telecom | ​ | International Telecom | ​ | Total
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
High cost support | $ | 2,494 | ​ | $ | 1,397 | ​ | $ | 3,891
CAF II | ​ | 6,815 | ​ | ​ | — | ​ | ​ | 6,815
RDOF | ​ | 608 | ​ | ​ | — | ​ | ​ | 608
Other Programs | ​ | 15,660 | ​ | ​ | 4 | ​ | ​ | 15,664
Total | $ | 25,577 | ​ | $ | 1,401 | ​ | $ | 26,978
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | Three months ended
​ | March 31, 2022
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | US Telecom | ​ | International Telecom | ​ | Total
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
High cost support | $ | 1,056 | ​ | $ | 2,761 | ​ | $ | 3,817
CAF II | ​ | 6,822 | ​ | ​ | — | ​ | ​ | 6,822
Other Programs | ​ | 5,554 | ​ | ​ | — | ​ | ​ | 5,554
Total | $ | 13,432 | ​ | $ | 2,761 | ​ | $ | 16,193

X
- Definition Tabular disclosure of grant funds. + References No definition available. + Details
Name: | atni_ScheduleOfGrantFundsTableTextBlock
Namespace Prefix: | atni_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_DisaggregationOfRevenueLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI https://asc.fasb.org/extlink&oid=126920106&loc=SL49130545-203045 + Details
Name: | us-gaap_DisaggregationOfRevenueTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | atni_GovernmentGrantsAxis=atni_NetworkConnectivityForEligibleCommunitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=atni_CommunicationServicesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |