XML 43 R33.htm IDEA: XBRL DOCUMENT
v3.19.3.a.u2

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2019
Schedule of changes in accumulated other comprehensive income (loss), by component | Changes in accumulated other comprehensive income (loss), by component, were as follows (in thousands):
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  |  | Projected |  | ​ | ​ |  | ​ | ​ |  | ​ | ​ | ​
​ | ​ | ​ | Pension | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | Benefit | ​ | Translation | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | Obligation | ​ | Adjustment | ​ | Other | ​ | Total |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Balance at December 31, 2016 | ​ | ​ | $ | 1,770 | ​ | $ | (910) | ​ | $ | 868 | ​ | $ | 1,728 | ​
Adjust funded status of pension plans, net of tax of $0.7 million | ​ | ​ |  | 1,357 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 1,357 | ​
Foreign currency translation adjustment | ​ | ​ |  | — | ​ | ​ | 1,265 | ​ | ​ | — | ​ | ​ | 1,265 | ​
Reclassifications of gains on sale of marketable securities to net income | ​ | ​ | ​ | — | ​ | ​ | — | ​ | ​ | (1,044) | ​ | ​ | (1,044) | ​
Unrealized gain on marketable securities | ​ | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 440 | ​ | ​ | 440 | ​
Balance at December 31, 2017 | ​ | ​ | $ | 3,127 | ​ | $ | 355 | ​ | $ | 264 | ​ | $ | 3,746 | ​
Adjust funded status of pension plans, net of tax of $0.6 million | ​ | ​ | ​ | (840) | ​ | ​ | — | ​ | ​ | — | ​ | ​ | (840) | ​
Foreign currency translation adjustment | ​ | ​ | ​ | — | ​ | ​ | (4,390) | ​ | ​ | — | ​ | ​ | (4,390) | ​
Adoption of ASU 2016-01 | ​ | ​ | ​ | — | ​ | ​ | — | ​ | ​ | (203) | ​ | ​ | (203) | ​
Interest rate swap | ​ | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 78 | ​ | ​ | 78 | ​
Balance at December 31, 2018 | ​ | ​ | ​ | 2,287 | ​ | ​ | (4,035) | ​ | ​ | 139 | ​ | ​ | (1,609) | ​
Adjust funded status of pension plan, net of tax of $0.1 million | ​ | ​ | ​ | (445) | ​ | ​ | — | ​ | ​ | — | ​ | ​ | (445) | ​
Foreign currency translation adjustment | ​ | ​ | ​ | — | ​ | ​ | (1,041) | ​ | ​ | — | ​ | ​ | (1,041) | ​
Interest rate swap | ​ | ​ | ​ | — | ​ | ​ | — | ​ | ​ | (187) | ​ | ​ | (187) | ​
Balance at December 31, 2019 | ​ | ​ | $ | 1,842 | ​ | $ | (5,076) | ​ | $ | (48) | ​ | $ | (3,282) | ​
​
Schedule of reclassification from accumulated other comprehensive income | Amounts reclassified from accumulated other comprehensive income to net income were as follows (in thousands):
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | 2019 | ​ | ​ | 2018 | ​ | ​ | 2017
Pension and other postretirement benefit plans | ​ | ​ | $ | (64) | ​ | $ | 54 | ​ | $ | 716
Realized gains on marketable securities | ​ | ​ | ​ | — | ​ | ​ | — | ​ | ​ | (1,044)
Total | ​ | ​ | $ | (64) | ​ | $ | 54 | ​ | $ | (328)
​
Schedule of assets and liabilities of the Company measured at fair value on a recurring basis | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, 2019
​ | ​ | Significant Other
​ | ​ | Quoted Prices in | ​ | Observable | ​ | Unobservable | ​ | ​ | ​
​ | ​ | Active Markets | ​ | Inputs | ​ | Inputs | ​ | ​ | ​
Description | ​ | (Level 1) | ​ | (Level 2) | ​ | (Level 3) | ​ | Total
Certificates of deposit | ​ | $ | — | ​ | $ | 380 | ​ | $ | — | ​ | $ | 380
Money market funds | ​ | ​ | 2,329 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 2,329
Short term investments | ​ | ​ | 416 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 416
Other investments | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 12,700 | ​ | ​ | 12,700
Interest rate swap | ​ | ​ | — | ​ | ​ | (56) | ​ | ​ | — | ​ | ​ | (56)
Total assets and liabilities measured at fair value | ​ | $ | 2,745 | ​ | $ | 324 | ​ | $ | 12,700 | ​ | $ | 15,769
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, 2018
| ​ | Significant Other
​ | ​ | Quoted Prices in | ​ | Observable | ​ | ​ | ​
​ | ​ | Active Markets | ​ | Inputs | ​ | ​ | ​
Description | ​ | (Level 1) | ​ | (Level 2) | ​ | Total
Certificates of deposit | ​ | $ | — | ​ | $ | 380 | ​ | $ | 380
Money market funds | ​ | ​ | 2,266 | ​ | ​ | — | ​ | ​ | 2,266
Short term investments | ​ | ​ | 393 | ​ | ​ | — | ​ | ​ | 393
Commercial paper | ​ | ​ | — | ​ | ​ | 13,972 | ​ | ​ | 13,972
Interest rate swap | ​ | ​ | — | ​ | ​ | 140 | ​ | ​ | 140
Total assets and liabilities measured at fair value | ​ | $ | 2,659 | ​ | $ | 14,492 | ​ | $ | 17,151
Schedule of reconciliation from basic to diluted weighted average common shares outstanding | The reconciliation from basic to diluted weighted average shares of Common Stock outstanding is as follows (in thousands):
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Year ended December 31, | ​
​ |  | 2019 |  | 2018 |  | 2017 |
Basic weighted-average shares of common stock outstanding |  | 15,983 | ​ | 15,988 | ​ | 16,138 | ​
Stock options |  | — | ​ | 54 | ​ | 72 | ​
Diluted weighted-average shares of common stock outstanding |  | 15,983 | ​ | 16,042 | ​ | 16,210 | ​
Accounting Standards Update 2016-15 and 2018-18 |
Summary of changes to the Company's financial statements as a result of the adoption | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Statement of Cash flows | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Year ended December 31, 2017 | ​
​ | ​ | Reported | ​ | ​ | Change | ​ | ​ | Under previous guidance | ​
Net cash provided by operating activities | $ | 145,725 | ​ | $ | — | ​ | $ | 145,725 | ​
Net cash used in investing activities | ​ | (172,318) | ​ | ​ | 5,525 | ​ | ​ | (166,793) | ​
Net cash used in financing activities | ​ | (42,101) | ​ | ​ | 1,178 | ​ | ​ | (40,923) | ​
Effect of foreign currency exchange rates on total cash | ​ | 226 | ​ | ​ | — | ​ | ​ | 226 | ​
Net change in total cash | $ | (68,468) | ​ | $ | 6,703 | ​ | $ | (61,765) | ​
Total cash, beginning of period | ​ | 288,358 | ​ | ​ | (18,637) | ​ | ​ | 269,721 | ​
Total cash, end of period | $ | 219,890 | ​ | $ | (11,934) | ​ | $ | 207,956 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​

X
- Definition Tabular disclosure of information about items reclassified out of accumulated other comprehensive income (loss). + References No definition available. + Details
Name: | us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669686-108580 + Details
Name: | us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
Name: | us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of changes in accounting principles, including adoption of new accounting pronouncements, that describes the new methods, amount and effects on financial statement line items. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22499-107794 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 45 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=116846552&loc=d3e765-108305 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.10-01.(b)(6)) -URI http://asc.fasb.org/extlink&oid=27015980&loc=d3e46468-122699 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=116846552&loc=d3e725-108305 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22583-107794 + Details
Name: | us-gaap_ScheduleOfNewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the weighted average number of shares used in calculating basic net earnings per share (or unit) and diluted earnings per share (or unit). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
Name: | us-gaap_ScheduleOfWeightedAverageNumberOfSharesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_AdjustmentsForNewAccountingPronouncementsAxis=atni_AccountingStandardsUpdate201615And201818Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |