Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2022

Intangible Assets, Net (Excluding Goodwill) [Abstract]

Schedule of Components of Intangible Assets

The following table summarizes the components of our intangible assets at the dates indicated:

	June 30, 2022						December 31, 2021
	Gross Carrying Amount		Accumulated Amortization		Carrying Value		Gross Carrying Amount		Accumulated Amortization		Carrying Value
Marine contract intangibles	$	800	$	625	$	175	$	800	$	607	$	193
Offshore pipeline contract intangibles	158,101		57,554		100,547		158,101		53,394		104,707
Other	42,735		16,757		25,978		37,933		15,770		22,163
Total	$	201,636	$	74,936	$	126,700	$	196,834	$	69,771	$	127,063

Schedule of Amortization Expense

Our amortization of intangible assets for the periods presented was as follows:

	Three Months Ended June 30,				Six Months Ended June 30,
	2022		2021		2022		2021
Amortization of intangible assets	$	2,577	$	2,580	$	5,165	$	5,180

Schedule of Expected Amortization Expense

We estimate that our amortization expense for the next five years will be as follows:

Remainder of	2022	$	6,110
	2023	$	11,983
	2024	$	11,618
	2025	$	11,393
	2026	$	11,093