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Intangibles | 12 Months Ended
--- | ---
Dec. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract] |
Intangibles | Intangibles Intangible assets other than goodwill were comprised of the following:
| December 31,
| 2018 |  | 2017
Noncompetition and other agreements | $ | 131,360 |  |  | $ | 429,140 |
Lease agreements | 7,584 |  |  | 7,623 |
Indefinite-lived assets | 59,885 |  |  | 33,255 |
Other | 583 |  |  | 583 |
| 199,412 |  |  | 470,601 |
Less accumulated amortization | (80,566 | ) |  | (356,774 | )
| $ | 118,846 |  |  | $ | 113,827 |
Amortization expense from amortizable intangible assets, other than lease agreements, was $16,236, $15,782, and $14,552 for 2018, 2017 and 2016, respectively. Lease agreement intangible assets and liabilities were amortized to rent expense in the amounts of $(296), $(203) and $(232) for 2018, 2017 and 2016, respectively. During the years ended December 31, 2018, 2017 and 2016, the Company recognized no impairment charges on any intangible assets other than goodwill. Amortizable intangible liabilities as of December 31, 2018 and 2017 were comprised of lease agreements of $5,930 and $5,447, respectively, which were net of accumulated amortization of $4,362 and $3,508, respectively. Lease agreement intangible liabilities are classified in other long-term liabilities and amortized to rent expense. Scheduled amortization charges from amortizable intangible assets and liabilities as of December 31, 2018 were as follows:
| Noncompetition and other agreements |  | Lease liabilities |  | Other
2019 | $ | 14,442 |  |  | $ | (901 | ) |  | $ | 91 |
2020 | 13,020 |  |  | (895 | ) |  | 45 |
2021 | 10,816 |  |  | (871 | ) |  | — |
2022 | 7,001 |  |  | (864 | ) |  | — |
2023 | 4,235 |  |  | (704 | ) |  | — |
Thereafter | 9,311 |  |  | (1,695 | ) |  | — |
Total | $ | 58,825 |  |  | $ | (5,930 | ) |  | $ | 136 |

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- Definition The entire disclosure for all or part of the information related to intangible assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -URI http://asc.fasb.org/topic&trid=2144416 + Details
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