| Fiscal period | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | 2011 |
|---|
| Period End Date | 12/31/2020 | 12/31/2019 | 12/31/2018 | 12/31/2017 | 12/31/2016 | 12/31/2015 | 12/31/2014 | 12/31/2013 | 12/31/2012 | 12/31/2011 |
|---|
| Operating Revenues | -- | -- | -- | -- | -- | -- | -- | -- | 115,846.00 | 110,875.00 |
| Operating Revenues-Service revenues and other | 109,872.00 | 110,305.00 | 108,605.00 | 107,145.00 | 108,468.00 | 114,696.00 | 116,122.00 | 112,454.00 | -- | -- |
| Operating Revenues-Wireless equipment revenues | 18,420.00 | 21,563.00 | 22,258.00 | 18,889.00 | 17,512.00 | 16,924.00 | 10,957.00 | 8,096.00 | -- | -- |
| Total Revenues | 128,292.00 | 131,868.00 | 130,863.00 | 126,034.00 | 125,980.00 | 131,620.00 | 127,079.00 | 120,550.00 | 115,846.00 | 110,875.00 |
| Cost of services and sales | 31,401.00 | 31,772.00 | 32,185.00 | 30,916.00 | 30,463.00 | 29,438.00 | 28,306.00 | 28,534.00 | 46,275.00 | 45,875.00 |
| Wireless cost of equipment | 19,800.00 | 22,954.00 | 23,323.00 | 22,147.00 | 22,238.00 | 23,119.00 | 21,625.00 | 16,353.00 | -- | -- |
| Operations and support expense | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Depreciation and amortization expense | 16,720.00 | 16,682.00 | 17,403.00 | 16,954.00 | 15,928.00 | 16,017.00 | 16,533.00 | 16,606.00 | 16,460.00 | 16,496.00 |
| Oath goodwill impairment | -- | 186.00 | 4,591.00 | -- | 0.00 | -- | -- | -- | -- | -- |
| Selling, general and administrative expense | 31,573.00 | 29,896.00 | 31,083.00 | 28,592.00 | 28,102.00 | 29,986.00 | 41,016.00 | 27,089.00 | 39,951.00 | 35,624.00 |
| Sales of businesses, net | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Sales of assets, net | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Total Operating Expenses | 99,494.00 | 101,490.00 | 108,585.00 | 98,609.00 | 96,731.00 | 98,560.00 | 107,480.00 | 88,582.00 | 102,686.00 | 97,995.00 |
| Operating income (loss) | 28,798.00 | 30,378.00 | 22,278.00 | 27,425.00 | 29,249.00 | 33,060.00 | 19,599.00 | 31,968.00 | 13,160.00 | 12,880.00 |
| Interest expense | 4,247.00 | 4,730.00 | 4,833.00 | 4,733.00 | 4,376.00 | 4,920.00 | 4,915.00 | 2,667.00 | 2,571.00 | 2,827.00 |
| Income from other unconsolidated businesses | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Equity in income (loss) from unconsolidated businesses | (45.00) | (15.00) | (186.00) | (77.00) | (98.00) | (86.00) | 1,780.00 | 142.00 | 324.00 | 444.00 |
| Other income and (expense), net | (539.00) | (2,900.00) | 2,364.00 | (2,021.00) | (3,789.00) | 186.00 | (1,194.00) | (166.00) | (1,016.00) | (14.00) |
| Minority interest | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Mark-to-market adjustment - financial instruments | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Income before provision for income taxes | 23,967.00 | 22,733.00 | 19,623.00 | 20,594.00 | 20,986.00 | 28,240.00 | 15,270.00 | 29,277.00 | 9,897.00 | 10,483.00 |
| Provision for income taxes | 5,619.00 | 2,945.00 | 3,584.00 | (9,956.00) | 7,378.00 | 9,865.00 | 3,314.00 | 5,730.00 | (660.00) | 285.00 |
| Investment tax credits | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| CurrentFederal | 2,826.00 | 518.00 | 2,187.00 | 3,630.00 | 7,451.00 | 5,476.00 | 2,657.00 | (197.00) | 223.00 | 193.00 |
| CurrentForeign | 159.00 | 221.00 | 267.00 | 200.00 | 148.00 | 70.00 | 81.00 | (59.00) | (45.00) | 25.00 |
| CurrentState and local | 1,081.00 | 974.00 | 741.00 | 677.00 | 842.00 | 803.00 | 668.00 | 201.00 | 114.00 | 290.00 |
| DeferredFederal | 1,432.00 | 1,150.00 | 175.00 | (14,360.00) | (933.00) | 3,377.00 | (51.00) | 5,060.00 | (559.00) | 270.00 |
| DeferredForeign | 1.00 | (13.00) | 30.00 | (66.00) | (2.00) | 9.00 | (9.00) | 8.00 | 10.00 | (38.00) |
| DeferredState and local | 120.00 | 95.00 | 184.00 | (37.00) | (128.00) | 130.00 | (32.00) | 717.00 | (403.00) | (455.00) |
| Other credits | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Income (loss) on discontinued operations, net of tax | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Income Before Extraordinary Items and Cumulative Effect of Accounting Change | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Extraordinary items, net of tax | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Cumulative Effect of Accounting Change, Net of Tax | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Net Income (Loss) Before Preferred Stock Dividand & Others Adjustments | 18,348.00 | 19,788.00 | 16,039.00 | 30,550.00 | 13,608.00 | 18,375.00 | 11,956.00 | 23,547.00 | 10,557.00 | 10,198.00 |
| Net income attributable to noncontrolling interest | 547.00 | 523.00 | 511.00 | 449.00 | 481.00 | 496.00 | 2,331.00 | 12,050.00 | 9,682.00 | 7,794.00 |
| Redemption of subsidiary preferred stock | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Net income | 17,801.00 | 19,265.00 | 15,528.00 | 30,101.00 | 13,127.00 | 17,879.00 | 9,625.00 | 11,497.00 | 875.00 | 2,404.00 |
| Income before discontinued operations and cumulative effectof accounting change | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Income (loss) on discontinued operations, net of tax | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Cumulative effect of accounting change, net of tax | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Extraordinary items, net of tax | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Basic Earnings per Common Share | 4.30 | 4.66 | 3.76 | 7.37 | 3.22 | 4.38 | 2.42 | 4.01 | 0.31 | 0.85 |
| Income before discontinued operations and cumulative effect of accounting change | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Income (loss) on discontinued operations, net of tax | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Cumulative effect of accounting change, net of tax | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Extraordinary items, net of tax | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Diluted Earnings per Common Share | 4.30 | 4.65 | 3.76 | 7.36 | 3.21 | 4.37 | 2.42 | 4.00 | 0.31 | 0.85 |
| Weighted-average shares outstanding - Basic | 4,140.00 | 4,138.00 | 4,128.00 | 4,084.00 | 4,080.00 | 4,085.00 | 3,974.00 | 2,866.00 | 2,853.00 | 2,833.00 |
| Weighted-average shares outstanding - Diluted | 4,142.00 | 4,140.00 | 4,132.00 | 4,089.00 | 4,086.00 | 4,093.00 | 3,981.00 | 2,874.00 | 2,862.00 | 2,839.00 |