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Intangibles
9 Months Ended
Sep. 30, 2022
Intangibles  
Intangibles

(3) Intangibles

All customer relationships are subject to amortization and are amortized over a weighted average period of 19 years, which reflects the remaining economic life of the relationships as of September 30, 2022. The changes in the carrying amount of customer relationships were as follows (in thousands):

​

​

​

​

​

​

Customer relationships as of December 31, 2021

​

$

1,356,775

​

Amortization of customer relationships

​

​

(53,004)

​

Customer relationships as of September 30, 2022

​

$

1,303,771

​

​

Future amortization expense is as follows (in thousands):

​

​

​

​

​

Remainder of year ending December 31, 2022

​

$

17,668

​

Year ending December 31, 2023

​

​

70,672

​

Year ending December 31, 2024

​

​

70,672

​

Year ending December 31, 2025

​

​

70,672

​

Year ending December 31, 2026

​

​

70,672

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Thereafter

​

​

1,003,415

​

Total

​

$

1,303,771

​

​