Other Intangible Assets

9 Months Ended

Sep. 30, 2018

Intangible Assets, Net (Excluding Goodwill) [Abstract]

Note 7—Other Intangible Assets

The Company’s other intangible assets consist of customer relationships which were obtained through acquisitions and are recorded at their fair values at the date of acquisition. Intangible assets with determinable lives are amortized on a straight-line basis over their estimated useful lives. The customer relationships have a weighted-average amortization period of approximately 10 years.

The following table sets forth the estimated amortization expense for intangibles subject to amortization for the remainder of 2018, the following five fiscal years and thereafter:



Period/Year	Total Amortization Expense
	(in thousands)
October 1 to December 31, 2018	$	1,043
2019	$	4,165
2020	$	4,165
2021	$	4,165
2022	$	4,165
2023	$	3,168
Thereafter	$	6,688

Amortization expense for the three months ended September 30, 2018 and 2017 was $1.1 million and $1.0 million, respectively. Amortization expense for the nine months ended September 30, 2018 and 2017 was $3.3 million and $2.7 million, respectively.