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