Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Finite-Lived Intangible Assets

The following is a summary of the Company’s other intangible assets as of December 31 (in thousands):

	2018			2017			Weighted Average Life
Customer lists	$	73,792		$	74,615		14.4
Non-competition agreements	950			964			4.1
Trade names	2,510			2,510			13.3
Patents	57			57			9.0
	77,309			78,146
Less accumulated amortization and impairment	(67,481		)	(50,583		)
Intangible assets, net	$	9,828		$	27,563

Schedule of Future Amortization Expense

The estimated amortization expense for the next five years and thereafter, is as follows (in thousands):

2019	$	2,122
2020	2,021
2021	1,783
2022	1,407
2023	961
Thereafter	1,534
	$	9,828