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Discontinued Operations
 12 Months Ended
Dec. 31, 2024
Discontinued Operations and Disposal Groups [Abstract]  
Discontinued Operations Discontinued Operations
As discussed in Note 1, Nature of Operations above, the Tower Transaction represented a strategic shift in the Company’s business and the Tower Portfolio has been reclassified as a discontinued operation. As a result, for all periods presented, the
assets and liabilities that transferred in the Tower Transaction disposal group are presented as held for sale in the Company’s consolidated balance sheets, and operating results and cash flows related to the Tower Portfolio were reflected as a discontinued operations in our consolidated statements of operations and consolidated statements of cash flows.

The carrying amounts of the major classes of assets and liabilities, classified as held for sale in the consolidated balance sheets, were as follows:
(in thousands)December 31,
2023
ASSETS
Property, plant and equipment, net$29,162 
Operating lease right-of-use assets37,616 
Deferred charges and other assets2,137 
Noncurrent assets held for sale$68,915 
LIABILITIES
Accrued liabilities and other current liabilities$3,602 
Current liabilities held for sale$3,602 
Asset retirement obligations$9,516 
Non-current operating lease liabilities41,173 
Other liabilities3,524 
Noncurrent liabilities held for sale$54,213 

Income from discontinued operations, net of tax in the consolidated statements of operations consisted of the following for December 31, 2024, 2023 and 2022:
(in thousands)202420232022
Service revenue and other$4,542 $18,635 $18,919 
Operating expenses:
Cost of services1,059 5,625 5,712 
Selling, general and administrative572 1,412 1,279 
Depreciation and amortization
222 2,104 2,416 
Total operating expenses1,853 9,141 9,407 
Operating income2,689 9,494 9,512 
Other income:
Gain on sale of disposition of Tower Portfolio
294,250 — — 
Other expense
(81)— — 
Income before income taxes
296,858 9,494 9,512 
Income tax expense
74,684 2,472 2,473 
Income from discontinued operations, net of tax
$222,174 $7,022 $7,039 

Consummation of the sale triggered the recognition of approximately $4.4 million of incremental transaction costs during the year ended December 31, 2024, for contingent deal advisory fees and legal expenses, which are netted against the gain on sale of disposition of Tower Portfolio.