v3.23.1
Pay vs Performance Disclosure - USD ($)
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Pay vs Performance Disclosure [Table]      
Pay vs Performance [Table Text Block]
Year
Summary compensation table total for PEO(1)
Compensation actually paid to PEO(2)
Average
summary
compensation
table total for
non-PEO NEOs(3)
Average
compensation
actually paid
to non-PEO
NEOs(4)
Value of initial fixed $100
investment based on:
Net Loss(7)
Adjusted EBITDA(8)
Total shareholder return (TSR)(5)
Peer group
TSR(6)
2022$1,892,166 $1,250,965 $1,764,537 $1,277,946 $255.77 $95.61 $(256,915,000)$57,396,000 
2021$871,997 $4,318,956 $595,857 $952,036 $223.08 $127.87 $(112,625,000)$38,711,000 
2020$727,937 $145,209 $580,343 $375,332 $65.38 $122.04 $(109,639,000)$42,158,000 
   
Company Selected Measure Name Adjusted EBITDA    
Named Executive Officers, Footnote [Text Block] David B. Kagan, our Chief Executive Officer, was our PEO for each year presented. The dollar amounts reported are the amounts of total compensation reported for Mr. Kagan for each corresponding year in the “Total” column of the Summary Compensation Table. Refer to Executive Compensation – Summary Compensation Table.The dollar amounts reported represent the average of the amounts reported for the Company’s named executive officers (NEOs) as a group (excluding Mr. Kagan) in the “Total” column of the Summary Compensation Table in each applicable year. The names of each of the NEOs (excluding Mr. Kagan) included for purposes of calculating the average amounts in each of 2022, 2021 and 2020 are as follows Rebecca S. Clary, Vice President and Chief Financial Officer, and L. Barbee Ponder IV, Vice President of Regulatory Affairs and General Counsel. As discussed in this Proxy Statement, Mr. Monroe did not receive any compensation during 2020 through 2022 for his service as an executive officer of the Company; therefore, he is not included.    
Peer Group Issuers, Footnote [Text Block] The peer group used for this purpose is the Nasdaq Telecommunications index.    
PEO Total Compensation Amount $ 1,892,166 $ 871,997 $ 727,937
PEO Actually Paid Compensation Amount $ 1,250,965 4,318,956 145,209
Adjustment To PEO Compensation, Footnote [Text Block] The dollar amounts reported represent the amount of “compensation actually paid” to Mr. Kagan, as calculated in accordance with Item 402(v) of Regulation S-K. The dollar amounts do not reflect the actual amount of compensation earned or paid to Mr. Kagan during the applicable year. These amounts reflect the Summary Compensation Table Total with certain adjustments as described below. Mr. Kagan does not have pension benefits; therefore, columns reporting Change in Actuarial Value of Pension Benefits and Pension Benefit Adjustments are omitted.
YearSummary compensation table total for PEO
Reported Value of Equity Awards for PEO(a)
Equity Award Adjustments for PEO(b)
Compensation actually paid to PEO
2022$1,892,166 $1,330,400 $689,199 $1,250,965 
2021$871,997 $165,600 $3,612,559 $4,318,956 
2020$727,937 $182,359 $(400,369)$145,209 
a.The grant date fair value of equity awards represents the total of the amounts reported in the “Stock Awards” and “Option Awards” columns in the Summary Compensation Table for the applicable year.
b.The equity award adjustments for each applicable year include the addition (or subtraction, as applicable) of the following to the extent applicable: (i) the year-end fair value of any equity awards granted in the applicable year that are outstanding and unvested as of the end of the year; (ii) the amount of change as of the end of the applicable year (from the end of the prior fiscal year) in fair value of any awards granted in prior years that are outstanding and unvested as of the end of the applicable year; (iii) for awards that are granted and vest in same applicable year, the fair value as of the vesting date; and (iv) for awards granted in prior years that vest in the applicable year, the amount equal to the change as of the vesting date (from the end of the prior fiscal year) in fair value. The valuation assumptions used to calculate fair values did not materially differ from those disclosed at the time of grant.
The amounts deducted or added in calculating the equity award adjustments are set forth below. Columns reporting fair value at the end of the prior year of equity awards that failed to meet vesting conditions in the year and value of dividends or other earnings paid on stock or option awards not otherwise reflected in fair value or total compensation are omitted, because they are not applicable.
YearYear-End Fair Value of Equity Awards Granted During Year That Remained Unvested as of Last Day of Year for PEOChange in Fair Value from Last Day of Prior Year to Last Day of Year of Unvested Equity Awards for PEOChange in Fair Value of Equity Awards Granted and Vested in the same Covered Year for PEOChange in Fair Value from Last Day of Prior Year to Vesting Date of Unvested Equity Awards that Vested During Year for PEOTotal - Inclusion of Equity Values for PEO
2022$203,940 $310,726 $— $174,533 $689,199 
2021$139,200 $1,852,132 $144,999 $1,476,228 $3,612,559 
2020$27,201 $(409,926)$130,992 $(148,636)$(400,369)
   
Non-PEO NEO Average Total Compensation Amount $ 1,764,537 595,857 580,343
Non-PEO NEO Average Compensation Actually Paid Amount $ 1,277,946 952,036 375,332
Adjustment to Non-PEO NEO Compensation Footnote [Text Block] The dollar amounts reported represent the average amount of “compensation actually paid” to the NEOs as a group (excluding Mr. Kagan), as computed in accordance with Item 402(v) of Regulation S-K. The dollar amounts do not reflect the actual average amount of compensation earned by or paid to the NEOs as a group (excluding Mr. Kagan) during the applicable year. In accordance with the requirements of Item 402(v) of Regulation S-K, the following adjustments were made to average total compensation for the NEOs as a group (excluding Mr. Kagan) for each year to determine the compensation actually paid, using the same methodology described above in Note 2. The NEOs do not have pension benefits; therefore, columns reporting Change in Actuarial Value of Pension Benefits and Pension Benefit Adjustments are omitted.
YearAverage summary compensation table total for non-PEO NEOsReported Value of Equity Awards for non-PEO NEOs
Equity Award Adjustments for non-PEO NEOs(a)
Average compensation actually paid to non-PEO NEOs
2022$1,764,537 $1,414,900 $928,309 $1,277,946 
2021$595,857 $216,400 $572,579 $952,036 
2020$580,343 $267,973 $62,962 $375,332 
a.The amounts deducted or added in calculating the equity award adjustments are set forth below. Columns reporting fair value at the end of the prior year of equity awards that failed to meet vesting conditions in the year and value of dividends or other earnings paid on stock or option awards not otherwise reflected in fair value or total compensation are omitted, because they are not applicable.
YearAverage Year-End Fair Value of Equity Awards Granted During Year That Remained Unvested as of Last Day of Year for Non-PEO NEOsAverage Change in Fair Value from Last Day of Prior Year to Last Day of Year of Unvested Equity Awards for Non-PEO NEOsAverage Change in Fair Value of Equity Awards Granted and Vested in the same Covered Year for Non-PEO NEOsAverage Change in Fair Value from Last Day of Prior Year to Vesting Date of Unvested Equity Awards that Vested During Year for Non-PEO NEOs Total - Average Inclusion of Equity Values for Non-PEO NEOs
2022$724,856 $(7,629)$40,000 $171,082 $928,309 
2021$139,200 $118,139 $93,300 $221,940 $572,579 
2020$55,536 $(17,090)$170,481 $(145,965)$62,962 
   
Compensation Actually Paid vs. Total Shareholder Return [Text Block]
The following chart sets forth the relationship between Compensation Actually Paid to our PEO, the average of Compensation Actually Paid to our Non-PEO NEOs, and the our cumulative TSR for the three most recently completed fiscal years.
6569
   
Compensation Actually Paid vs. Net Income [Text Block]
The following chart sets forth the relationship between Compensation Actually Paid to our PEO, the average of Compensation Actually Paid to our Non-PEO NEOs, and our Net Loss during the three most recently completed fiscal years.
6954
   
Compensation Actually Paid vs. Company Selected Measure [Text Block]
The following chart sets forth the relationship between Compensation Actually Paid to our PEO, the average of Compensation Actually Paid to our other NEOs, and our Adjusted EBITDA for the three most recently completed fiscal years. As described above, Adjusted EBITDA is defined as earnings before interest, income taxes, depreciation, amortization, accretion and derivative (gains)/losses. Adjusted EBITDA excludes non-cash compensation expense, reduction in the value of assets, foreign exchange (gains)/losses, and certain other non-cash or non-recurring charges as applicable. We have determined that Adjusted EBITDA is the financial performance measure that, in the Company’s assessment, represents the most important performance measure (not otherwise required to be disclosed in the table) used by the Company to link compensation actually paid to the Company’s NEOs, for the most recently completed fiscal year, to Company performance. Under the Company’s annual bonus plan, which is designed to reward NEOs’ efforts to meet and exceed the Company's financial performance goals, the Company used Adjusted EBITDA when determining the bonus pool available for distribution to the NEOs during the fiscal year. As described in more detail in the section “Executive Officers and Compensation – Compensation Discussion and Analysis,” for each 1% of Adjusted EBITDA above or below the plan year target Adjusted EBITDA, adjustments are made to either increase or decrease the bonus distribution.
8605
   
Total Shareholder Return Vs Peer Group [Text Block]
The following chart compares our cumulative TSR over the three most recently completed fiscal years to that of the Nasdaq Telecommunications Index over the same period.
8843
   
Tabular List [Table Text Block]
Most Important Financial Performance MeasuresNatureExplanation
Adjusted EBITDAFinancial measure
A non-GAAP measure defined as earnings before interest, income taxes, depreciation, amortization, accretion and derivative (gains)/losses. Adjusted EBITDA excludes non-cash compensation expense, reduction in the value of assets, foreign exchange (gains)/losses, and certain other non-cash or non-recurring charges as applicable.
Specific Goal AchievementsFinancial measureObtaining predetermined financial goals or benchmarks for individual NEOs.
Performance AchievementsNon-financial measureObtaining predetermined non-financial goals or benchmarks for individual NEOs.
   
Total Shareholder Return Amount $ 255.77 223.08 65.38
Peer Group Total Shareholder Return Amount 95.61 127.87 122.04
Net Income (Loss) $ (256,915,000) $ (112,625,000) $ (109,639,000)
Company Selected Measure Amount 57,396,000 38,711,000 42,158,000
PEO Name David B. Kagan    
Additional 402(v) Disclosure [Text Block] Cumulative TSR is calculated by dividing the difference between the Company’s share price at the end and the beginning of the measurement period by the Company’s share price at the beginning of the measurement period. TSR is determined based on the value of an initial fixed investment of $100. The dollar amounts reported represent the amount of net loss reflected in the Company’s audited financial statements for the applicable year.    
Measure [Axis]: 1      
Pay vs Performance Disclosure [Table]      
Measure Name Adjusted EBITDA    
Non-GAAP Measure Description [Text Block] Adjusted EBITDA is a non-GAAP measure defined as earnings before interest, income taxes, depreciation, amortization, accretion and derivative (gains)/losses. Adjusted EBITDA excludes non-cash compensation expense, reduction in the value of assets, foreign exchange (gains)/losses, and certain other non-cash or non-recurring charges as applicable. We have determined that Adjusted EBITDA is the financial performance measure that, in the Company’s assessment, represents the most important performance measure (not otherwise required to be disclosed in the table) used by the Company to link compensation actually paid to the Company’s NEOs, for the most recently completed fiscal year, to Company performance.    
Measure [Axis]: 2      
Pay vs Performance Disclosure [Table]      
Measure Name Specific Goal Achievements    
Measure [Axis]: 3      
Pay vs Performance Disclosure [Table]      
Measure Name Performance Achievements    
PEO [Member] | Equity Awards Reported Value [Member]      
Pay vs Performance Disclosure [Table]      
Adjustment to Compensation Amount $ 1,330,400 $ 165,600 $ 182,359
PEO [Member] | Equity Award Adjustments [Member]      
Pay vs Performance Disclosure [Table]      
Adjustment to Compensation Amount 689,199 3,612,559 (400,369)
PEO [Member] | Equity Awards Granted During the Year, Unvested [Member]      
Pay vs Performance Disclosure [Table]      
Adjustment to Compensation Amount, Equity Awards 203,940 139,200 27,201
PEO [Member] | Equity Awards Granted in Prior Years, Unvested [Member]      
Pay vs Performance Disclosure [Table]      
Adjustment to Compensation Amount, Equity Awards 310,726 1,852,132 (409,926)
PEO [Member] | Equity Awards Granted During the Year, Vested [Member]      
Pay vs Performance Disclosure [Table]      
Adjustment to Compensation Amount, Equity Awards 0 144,999 130,992
PEO [Member] | Equity Awards Granted in Prior Years, Vested [Member]      
Pay vs Performance Disclosure [Table]      
Adjustment to Compensation Amount, Equity Awards 174,533 1,476,228 (148,636)
Non-PEO NEO [Member] | Equity Awards Reported Value [Member]      
Pay vs Performance Disclosure [Table]      
Adjustment to Compensation Amount 1,414,900 216,400 267,973
Non-PEO NEO [Member] | Equity Award Adjustments [Member]      
Pay vs Performance Disclosure [Table]      
Adjustment to Compensation Amount 928,309 572,579 62,962
Non-PEO NEO [Member] | Equity Awards Granted During the Year, Unvested [Member]      
Pay vs Performance Disclosure [Table]      
Adjustment to Compensation Amount, Equity Awards 724,856 139,200 55,536
Non-PEO NEO [Member] | Equity Awards Granted in Prior Years, Unvested [Member]      
Pay vs Performance Disclosure [Table]      
Adjustment to Compensation Amount, Equity Awards (7,629) 118,139 (17,090)
Non-PEO NEO [Member] | Equity Awards Granted During the Year, Vested [Member]      
Pay vs Performance Disclosure [Table]      
Adjustment to Compensation Amount, Equity Awards 40,000 93,300 170,481
Non-PEO NEO [Member] | Equity Awards Granted in Prior Years, Vested [Member]      
Pay vs Performance Disclosure [Table]      
Adjustment to Compensation Amount, Equity Awards $ 171,082 $ 221,940 $ (145,965)