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Revenue from Contracts with Customers (Tables) | 12 Months Ended
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Dec. 31, 2018
Revenue from Contract with Customer [Abstract] |
Disaggregation of Revenue | Revenue earned for the year ended December 31, 2018 was as follows:
(in thousands) |  | Wireless |  | Cable |  | Wireline |  | Consolidated
Wireless service |  | $ | 380,818 |  |  | $ | — |  |  | $ | — |  |  | $ | 380,818 |
Equipment |  | 67,510 |  |  | 695 |  |  | 193 |  |  | 68,398 |
Business, residential and enterprise |  | — |  |  | 117,836 |  |  | 42,445 |  |  | 160,281 |
Tower and other |  | 14,327 |  |  | 10,372 |  |  | 34,504 |  |  | 59,203 |
Total revenue |  | 462,655 |  |  | 128,903 |  |  | 77,142 |  |  | 668,700 |
Internal revenue |  | (5,016 | ) |  | (4,706 | ) |  | (28,124 | ) |  | (37,846 | )
Total operating revenue |  | $ | 457,639 |  |  | $ | 124,197 |  |  | $ | 49,018 |  |  | $ | 630,854 |
Schedule of New Accounting Pronouncements and Changes in Accounting Principles | The cumulative effect of the changes made to the consolidated January 1, 2018 balance sheet for the adoption of the new revenue recognition standard were as follows:
(in thousands) |  | Balance at December 31, 2017 |  | Adjustments due to Topic 606 |  | Balance at January 1, 2018
Assets |  |  |  |  |  |
Prepaid expenses and other |  | $ | 17,111 |  |  | $ | 29,876 |  |  | $ | 46,987 |
Deferred charges and other assets, net |  | 13,690 |  |  | 31,071 |  |  | 44,761 |
Liabilities |  |  |  |  |  |
Advanced billing and customer deposits |  | 21,153 |  |  | (14,302 | ) |  | 6,851 |
Deferred income taxes |  | 100,879 |  |  | 20,352 |  |  | 121,231 |
Other long-term liabilities |  | 15,293 |  |  | (1,200 | ) |  | 14,093 |
Retained earnings |  | 297,205 |  |  | 56,097 |  |  | 353,302 |
The impact of the adoption of the new revenue recognition standard on the consolidated statements of operations and comprehensive income and consolidated balance sheets was as follows:
|  | Year Ended December, 31 2018
(in thousands) |  | As Reported |  | Balances without Adoption of Topic 606 |  | Effect of Change Higher/(Lower)
Operating revenue: |  |  |  |  |  |
Service revenue and other |  | $ | 562,456 |  |  | $ | 632,340 |  |  | $ | (69,884 | )
Equipment revenue |  | 68,398 |  |  | 8,298 |  |  | 60,100 |
Operating expenses: |  |  |  |  |  |
Cost of services |  | 194,022 |  |  | 193,860 |  |  | 162 |
Cost of goods sold |  | 63,959 |  |  | 28,377 |  |  | 35,582 |
Selling, general and administrative |  | 113,222 |  |  | 175,753 |  |  | (62,531 | )
|  | As of December 31, 2018
(in thousands) |  | As Reported |  | Balances without Adoption of Topic 606 |  | Effect of Change Higher/(Lower)
Assets |  |  |  |  |  |
Prepaid expenses and other |  | $ | 60,162 |  |  | $ | 22,204 |  |  | $ | 37,958 |
Deferred charges and other assets, net |  | 49,891 |  |  | 12,083 |  |  | 37,808 |
Liabilities |  |  |  |  |  |
Advanced billing and customer deposits |  | 7,919 |  |  | 24,414 |  |  | (16,495 | )
Deferred income taxes |  | 127,453 |  |  | 103,404 |  |  | 24,049 |
Other long-term liabilities |  | 14,364 |  |  | 15,550 |  |  | (1,186 | )
Retained earnings |  | 386,511 |  |  | 319,926 |  |  | 66,585 |

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