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Broadcast Licenses, Goodwill and Other Intangible Assets (Tables) | 12 Months Ended
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Dec. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract] |
Changes to broadcast licenses | We have recorded the changes to broadcast licenses for the years ended December 31, 2018 and 2017 as follows:
|  | Continuing Operations |  |  | Discontinued Operations |  |  | Total |
|  | (In thousands) |
Balance at January 1, 2017 |  | $ | 86,622 |  |  | $ | 9,607 |  |  | $ | 96,229 |
Acquisitions |  |  | 8,086 |  |  |  | — |  |  |  | 8,086 |
Dispositions |  |  | — |  |  |  | (9,607 | ) |  |  | (9,607 | )
Impairment charge |  |  | (1,449 | ) |  |  | — |  |  |  | (1,449 | )
Balance at December 31, 2017 |  | $ | 93,259 |  |  | $ | — |  |  | $ | 93,259 |
Acquisitions |  |  | 1,991 |  |  |  | — |  |  |  | 1,991 |
Balance at December 31, 2018 |  | $ | 95,250 |  |  | $ | — |  |  | $ | 95,250 |
Key estimates and assumptions used in the impairment test | The following table reflects certain key estimates and assumptions used in the impairment test in the fourth quarter of 2018, 2017 and 2016. The ranges for operating profit margin and market long-term revenue growth rates vary by market. In general, when comparing between 2018, 2017 and 2016: (1) the market specific operating profit margin range remained relatively consistent; (2) the market long-term revenue growth rates were relatively consistent; (3) the discount rate remained relatively consistent; and (4) current year revenues were 3.9% lower than previously projected for 2018.
|  |  | Fourth Quarter 2018 |  |  | Fourth Quarter 2017 |  |  | Fourth Quarter 2016
Discount rates |  |  | 12.0% - 12.0% |  |  | 12.4% - 12.5% |  |  | 12.3% - 12.4%
Operating profit margin ranges |  |  | 19.0% - 36.4% |  |  | 19.0% - 36.4% |  |  | 19.5% - 36.4%
Market long-term revenue growth rates |  |  | 0.5% - 2.9% |  |  | 1.1% - 3.5% |  |  | 1.0% - 2.9%
Changes to Goodwill | We have recorded the changes to goodwill for each of the years ended December 31, 2018 and 2017 as follows:
|  | Total |
|  | (in thousands) |
Balance at January 1, 2017 |  | $ | 7,407 |
Acquisitions |  |  | 8,151 |
Balance at December 31, 2017 |  | $ | 15,558 |
Acquisitions |  |  | 3,281 |
Balance at December 31, 2018 |  | $ | 18,839 |
Amortizable intangible assets | We have recorded amortizable intangible assets at December 31, 2018 as follows:
|  | Gross |  |  |  |  |  |  |
|  | Carrying |  |  | Accumulated |  |  | Net |
|  | Amount |  |  | Amortization |  |  | Amount |
|  | (In thousands) |
Non-competition agreements |  | $ | 3,861 |  |  | $ | 3,861 |  |  | $ | — |
Favorable lease agreements |  |  | 5,965 |  |  |  | 5,504 |  |  |  | 461 |
Customer relationships |  |  | 4,660 |  |  |  | 2,634 |  |  |  | 2,026 |
Other intangibles |  |  | 1,943 |  |  |  | 1,683 |  |  |  | 260 |
Total amortizable intangible assets |  | $ | 16,429 |  |  | $ | 13,682 |  |  | $ | 2,747 |
We have recorded amortizable intangible assets at December 31, 2017 as follows:
|  | Gross |  |  |  |  |  |  |
|  | Carrying |  |  | Accumulated |  |  | Net |
|  | Amount |  |  | Amortization |  |  | Amount |
|  | (In thousands) |
Non-competition agreements |  | $ | 3,861 |  |  | $ | 3,861 |  |  | $ | — |
Favorable lease agreements |  |  | 5,965 |  |  |  | 5,468 |  |  |  | 497 |
Customer relationships |  |  | 3,546 |  |  |  | 1,529 |  |  |  | 2,017 |
Other intangibles |  |  | 1,834 |  |  |  | 1,630 |  |  |  | 204 |
Total amortizable intangible assets |  | $ | 15,206 |  |  | $ | 12,488 |  |  | $ | 2,718 |

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