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Intangible Assets | 12 Months Ended
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Dec. 31, 2024
Intangible Assets. |
Intangible Assets | 6.Intangible Assets All of our intangible assets are subject to amortization and substantially all are related to customer contracts acquired through acquisitions. The components of the intangible assets are as follows: ​
​ | ​ | ​ | ​ | ​ | ​ | ​
(in thousands) |  | December 31, | December 31,
​ |  | 2024 | 2023
Gross Value | ​ | $ | 366,683 | ​ | $ | 366,683
Accumulated Amortization | ​ | ​ | (171,460) | ​ | ​ | (134,406)
Net Carrying Value | ​ | $ | 195,223 | ​ | $ | 232,277
​ Substantially all of the net carrying value of our intangible assets is attributable to contracts that expire in 2035. The table below shows the expected amortization of intangible assets as of December 31, 2024: ​
​ | ​ | ​ | ​
(in thousands) |  | Amount
2025 | ​ | $ | 35,215
2026 | ​ | ​ | 32,123
2027 | ​ | ​ | 27,893
2028 | ​ | ​ | 23,190
2029 | ​ | ​ | 18,648
Thereafter | ​ | ​ | 58,154
​ Amortization expense totaled $37.1 million, $37.6 million and $36.7 million for the years ended December 31, 2024, 2023 and 2022, respectively.

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- Definition The entire disclosure for goodwill and intangible assets. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/350-30/tableOfContent Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 350 -SubTopic 20 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/350-20/tableOfContent + Details
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