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Pay vs Performance Disclosure - USD ($) | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Pay vs Performance Disclosure |  |  |  |
Pay vs Performance Disclosure, Table |
|  |  |  |  | Value of Initial Fixed $100 Investment Based On: | Net Income (Loss) (in thousands) | Adjusted EBITDA (in thousands)
Year | Summary Compensation Table Total for PEO (a) | Compensation Actually Paid to PEO (b) | Average Summary Compensation Table Total for Non-PEO NEOs (c) | Average Compensation Actually Paid to Non-PEO NEOs (b)(c) | Total Shareholder Return | Peer Group Total Shareholder Return (d)
2023 | $ | 3,418,824 |  | $ | 4,013,574 |  | $ | 1,521,884 |  | $ | 1,922,270 |  | $ | 86 |  | $ | 101 |  | $ | 6,519 |  | $ | 90,595 |
2022 | 2,816,123 |  | 2,212,185 |  | 1,352,904 |  | 966,594 |  | 63 |  | 90 |  | (8,379) |  | 75,961 |
2021 | 2,420,824 |  | 1,620,948 |  | 1,050,218 |  | 810,027 |  | 101 |  | 116 |  | 1,003,537 |  | 65,726 |
2020 | 2,875,067 |  | 2,548,852 |  | 1,173,111 |  | 1,107,434 |  | 105 |  | 110 |  | 120,659 |  | 55,789 |
Named Executive Officers, Footnote | The dollar amounts reported are the amounts of total compensation reported for our CEO, Mr. French, in the Summary Compensation Table ("SCT") for fiscal years 2023, 2022, 2021 and 2020. Mr. French served as CEO for each of the years presentedThe dollar amounts reported are the amounts of total compensation reported for our NEOs, other than our CEO. For 2023 and 2022, reflects compensation information for Mr. McKay, Mr. Volk, Mr. Mason, and Ms. Cheng. For 2021, reflects compensation information for Mr. McKay, Mr. Volk, Ms. Cheng, and Ms. Tormey. For 2020, reflects compensation information for Mr. McKay, Mr. Volk, Mr. Heimbach, and Mr. Pirtle. |  |  |
Peer Group Issuers, Footnote | The Peer Group selected for Total Shareholder Return comparisons is the Nasdaq Telecommunications Index. |  |  |
PEO Total Compensation Amount | $ 3,418,824 | $ 2,816,123 | $ 2,420,824 | $ 2,875,067
PEO Actually Paid Compensation Amount | $ 4,013,574 | 2,212,185 | 1,620,948 | 2,548,852
Adjustment To PEO Compensation, Footnote | The dollar amounts reported represent the amount of CAP, as computed in accordance with SEC rules. The dollar amounts do not reflect the actual amounts of compensation paid to our CEO or other NEOs during the applicable year, but rather is a value calculated under applicable SEC rules. In general, the amounts also include the year-end value of equity awards granted during the reported year and the change in the value of equity awards that were unvested at the end of the prior year, measured through the date the awards vested or were forfeited, or through the end of the reported fiscal year. NEOs do not participate in a defined benefit plan so no adjustment for pension benefits is included. Similarly, no adjustment is made for dividends as there are no dividend rights associated with the equity awards. To calculate the amounts of CAP, the following amounts were deducted from and added to (as applicable) “Total” compensation as reported in the SCT. No equity awards failed to meet the applicable vesting conditions during the applicable periods and there were therefore no related amounts subtracted.
Year | Executive(s) | Summary Compensation Table Total ($) | Subtract Stock Awards ($) (i) | Add Year-End Equity Value ($) (ii) | Change in Value of Prior Equity Awards ($) (ii) | Add Change in Value of Vested Equity Awards ($) (ii) | Fair Value at Vesting Date of Vested Awards Granted in Current Year (iii) | Compensation Actually Paid ($)
2023 | CEO | 3,418,824 |  | (1,863,158) |  | 1,181,899 |  | 449,205 |  | — |  | 826,804 |  | 4,013,574 |
| Other NEOs | 1,521,884 |  | (849,881) |  | 972,104 |  | 252,686 |  | 25,477 |  | — |  | 1,922,270 |
2022 | CEO | 2,816,123 |  | (1,413,938) |  | 504,221 |  | (270,438) |  | (95,559) |  | 671,776 |  | 2,212,185 |
| Other NEOs | 1,352,904 |  | (751,994) |  | 556,781 |  | (161,302) |  | (29,795) |  | - |  | 966,594 |
2021 | CEO | 2,420,824 |  | (1,387,736) |  | 583,623 |  | (503,285) |  | (144,768) |  | 652,290 |  | 1,620,948 |
| Other NEOs | 1,050,218 |  | (488,300) |  | 399,158 |  | (126,310) |  | (24,739) |  | - |  | 810,027 |
2020 | CEO | 2,875,067 |  | (1,316,267) |  | 611,535 |  | (26,928) |  | (203,387) |  | 608,832 |  | 2,548,852 |
| Other NEOs | 1,173,111 |  | (441,113) |  | 361,819 |  | (2,843) |  | (11,762) |  | 28,222 |  | 1,107,434 |
_______________________________________________________ (i)Represents the grant date fair value of the equity awards as reported in the “Stock Awards” column in the SCT for each applicable year. (ii)The fair value of equity awards reported for CAP purposes were valued at each fiscal year end during the vesting period. As discussed in “Executive Compensation – Compensation Discussion and Analysis,” the Company currently grants three types of equity awards. The RTSR PSU awards were valued via Monte Carlo Simulation, the RSU awards were valued using the market closing price of the Company's common stock, and the Strategic Retention PSU awards were valued using the market closing price of the Company's common stock and the Company's current assessment of performance towards the underlying objectives. Certain non-PEO's compensation during 2020 included awards of incentive stock options. These option awards were valued using a Black-Scholes option pricing model. (iii)For CAP purposes and this table, time-based RSUs are considered “vested” on the date of retirement eligibility. As a result, 100% of the time-based RSUs granted to the CEO were considered “vested” for fiscal years 2023, 2022, 2021 and 2020 and 100% of the time-based RSUs granted to one of the Other NEOs were considered "vested" for fiscal year 2020. |  |  |
Non-PEO NEO Average Total Compensation Amount | $ 1,521,884 | 1,352,904 | 1,050,218 | 1,173,111
Non-PEO NEO Average Compensation Actually Paid Amount | $ 1,922,270 | 966,594 | 810,027 | 1,107,434
Adjustment to Non-PEO NEO Compensation Footnote | The dollar amounts reported represent the amount of CAP, as computed in accordance with SEC rules. The dollar amounts do not reflect the actual amounts of compensation paid to our CEO or other NEOs during the applicable year, but rather is a value calculated under applicable SEC rules. In general, the amounts also include the year-end value of equity awards granted during the reported year and the change in the value of equity awards that were unvested at the end of the prior year, measured through the date the awards vested or were forfeited, or through the end of the reported fiscal year. NEOs do not participate in a defined benefit plan so no adjustment for pension benefits is included. Similarly, no adjustment is made for dividends as there are no dividend rights associated with the equity awards. To calculate the amounts of CAP, the following amounts were deducted from and added to (as applicable) “Total” compensation as reported in the SCT. No equity awards failed to meet the applicable vesting conditions during the applicable periods and there were therefore no related amounts subtracted.
Year | Executive(s) | Summary Compensation Table Total ($) | Subtract Stock Awards ($) (i) | Add Year-End Equity Value ($) (ii) | Change in Value of Prior Equity Awards ($) (ii) | Add Change in Value of Vested Equity Awards ($) (ii) | Fair Value at Vesting Date of Vested Awards Granted in Current Year (iii) | Compensation Actually Paid ($)
2023 | CEO | 3,418,824 |  | (1,863,158) |  | 1,181,899 |  | 449,205 |  | — |  | 826,804 |  | 4,013,574 |
| Other NEOs | 1,521,884 |  | (849,881) |  | 972,104 |  | 252,686 |  | 25,477 |  | — |  | 1,922,270 |
2022 | CEO | 2,816,123 |  | (1,413,938) |  | 504,221 |  | (270,438) |  | (95,559) |  | 671,776 |  | 2,212,185 |
| Other NEOs | 1,352,904 |  | (751,994) |  | 556,781 |  | (161,302) |  | (29,795) |  | - |  | 966,594 |
2021 | CEO | 2,420,824 |  | (1,387,736) |  | 583,623 |  | (503,285) |  | (144,768) |  | 652,290 |  | 1,620,948 |
| Other NEOs | 1,050,218 |  | (488,300) |  | 399,158 |  | (126,310) |  | (24,739) |  | - |  | 810,027 |
2020 | CEO | 2,875,067 |  | (1,316,267) |  | 611,535 |  | (26,928) |  | (203,387) |  | 608,832 |  | 2,548,852 |
| Other NEOs | 1,173,111 |  | (441,113) |  | 361,819 |  | (2,843) |  | (11,762) |  | 28,222 |  | 1,107,434 |
_______________________________________________________ (i)Represents the grant date fair value of the equity awards as reported in the “Stock Awards” column in the SCT for each applicable year. (ii)The fair value of equity awards reported for CAP purposes were valued at each fiscal year end during the vesting period. As discussed in “Executive Compensation – Compensation Discussion and Analysis,” the Company currently grants three types of equity awards. The RTSR PSU awards were valued via Monte Carlo Simulation, the RSU awards were valued using the market closing price of the Company's common stock, and the Strategic Retention PSU awards were valued using the market closing price of the Company's common stock and the Company's current assessment of performance towards the underlying objectives. Certain non-PEO's compensation during 2020 included awards of incentive stock options. These option awards were valued using a Black-Scholes option pricing model. (iii)For CAP purposes and this table, time-based RSUs are considered “vested” on the date of retirement eligibility. As a result, 100% of the time-based RSUs granted to the CEO were considered “vested” for fiscal years 2023, 2022, 2021 and 2020 and 100% of the time-based RSUs granted to one of the Other NEOs were considered "vested" for fiscal year 2020. |  |  |
Compensation Actually Paid vs. Total Shareholder Return |  |  |  |
Compensation Actually Paid vs. Net Income |  |  |  |
Compensation Actually Paid vs. Company Selected Measure |  |  |  |
Total Shareholder Return Vs Peer Group |  |  |  |
Tabular List, Table | Adjusted EBITDA b. Relative Total Shareholder Return c. Total Fiber Homes/Businesses Passed |  |  |
Total Shareholder Return Amount | $ 86 | 63 | 101 | 105
Peer Group Total Shareholder Return Amount | 101 | 90 | 116 | 110
Net Income (Loss) | $ 6,519,000 | $ (8,379,000) | $ 1,003,537,000 | $ 120,659,000
Company Selected Measure Amount | 90,595,000 | 75,961,000 | 65,726,000 | 55,789,000
PEO Name | Mr. French |  |  |
Measure:: 1 |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Name | Adjusted EBITDA |  |  |
Measure:: 2 |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Name | Relative Total Shareholder Return |  |  |
Measure:: 3 |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Name | Total Fiber Homes/Businesses Passed |  |  |
PEO | Adjustment, Subtract Stock Awards [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | $ (1,863,158) | $ (1,413,938) | $ (1,387,736) | $ (1,316,267)
PEO | Adjustment, Add Year End Equity Value [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | 1,181,899 | 504,221 | 583,623 | 611,535
PEO | Adjustment, Change In Value Of Prior Equity Awards [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | 449,205 | (270,438) | (503,285) | (26,928)
PEO | Adjustment, Add Change In Value Of Vested Equity Awards [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | 0 | (95,559) | (144,768) | (203,387)
PEO | Adjustment, Fair Value At Vesting Date Of Grants In Current Period [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | 826,804 | 671,776 | 652,290 | 608,832
Non-PEO NEO | Adjustment, Subtract Stock Awards [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | (849,881) | (751,994) | (488,300) | (441,113)
Non-PEO NEO | Adjustment, Add Year End Equity Value [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | 972,104 | 556,781 | 399,158 | 361,819
Non-PEO NEO | Adjustment, Change In Value Of Prior Equity Awards [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | 252,686 | (161,302) | (126,310) | (2,843)
Non-PEO NEO | Adjustment, Add Change In Value Of Vested Equity Awards [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | 25,477 | (29,795) | (24,739) | (11,762)
Non-PEO NEO | Adjustment, Fair Value At Vesting Date Of Grants In Current Period [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | $ 0 | $ 0 | $ 0 | $ 28,222

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