Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Finite-Lived Intangible Assets

Our intangible assets are as follows:

	December 31, 2019						December 31, 2018
(in thousands)	Gross		Accumulated Amortization (1)		Net		Gross		Accumulated Amortization (1)		Net
Customer Contracts and Relationships	$	339,760	$	61,860	$	277,900	$	339,760	$	29,558	$	310,202

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For the years ended December 31, 2019 and 2018, amortization expense related to intangible assets totaled $32.3 million and $29.6 million, respectively.

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense

Estimated future amortization expense related to the intangible assets at December 31, 2019 is as follows:

(in thousands)	December 31, 2019
2020	$	32,390
2021	32,301
2022	32,301
2023	32,301
2024	32,390
Thereafter	116,217
Total	$	277,900