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Property, Plant and Equipment | 9 Months Ended
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Sep. 30, 2025
Property, Plant and Equipment [Abstract] |
Property, Plant and Equipment | 6. Property, Plant and Equipment Property, plant and equipment, net consisted of the following:
| As of September 30, |  | As of December 31, |  |
| 2025 |  | 2024 |
| (In thousands) |  |
Furniture and fixtures | $ | 15,959 |  |  | $ | 15,925 |  |  |
Computer and office equipment | 14,538 |  |  | 13,967 |  |  |
Telecommunications equipment | 90,960 |  |  | 82,608 |  |  |
Leasehold improvements | 80,058 |  |  | 76,054 |  |  |
Software | 29,554 |  |  | 24,916 |  |  |
Internal-use software development | 43,564 |  |  | 35,499 |  |  |
Automobile | 455 |  |  | 447 |  |  |
Land | 27,636 |  |  | 27,636 |  |  |
Land Improvements | 1,065 |  |  | 1,065 |  |  |
Total cost | 303,789 |  |  | 278,117 |  |  |
Less—accumulated depreciation | (127,692) |  |  | (101,294) |  |  |
Total property, plant and equipment, net | $ | 176,097 |  |  | $ | 176,823 |  |  |
The Company capitalized $2.7 million and $8.1 million of software development costs for the three and nine months ended September 30, 2025, respectively, and $2.7 million and $8.9 million for the three and nine months ended September 30, 2024, respectively. Amortization expense related to capitalized software development costs was $1.9 million and $5.0 million for the three and nine months ended September 30, 2025, respectively, and $1.0 million and $3.0 million for the three and nine months ended September 30, 2024, respectively. The Company recognized depreciation expense, which includes amortization of capitalized software development costs, as follows:
| Three months ended September 30, |  | Nine months ended September 30,
| 2025 |  | 2024 |  | 2025 |  | 2024 |  |
| (In thousands)
Cost of revenue | $ | 5,299 |  |  | $ | 4,679 |  |  | $ | 15,137 |  |  | $ | 14,135 |  |  |
Research and development | 1,881 |  |  | 1,628 |  |  | 5,330 |  |  | 4,856 |  |  |
Sales and marketing | 1,270 |  |  | 1,107 |  |  | 3,622 |  |  | 3,355 |  |  |
General and administrative | 758 |  |  | 575 |  |  | 2,084 |  |  | 1,659 |  |  |
Total depreciation expense | $ | 9,208 |  |  | $ | 7,989 |  |  | $ | 26,173 |  |  | $ | 24,005 |  |  |

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- Definition The entire disclosure for long-lived, physical asset used in normal conduct of business and not intended for resale. Includes, but is not limited to, work of art, historical treasure, and similar asset classified as collections. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 360 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/360/tableOfContent Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 6 -SubTopic 360 -Topic 958 -Publisher FASB -URI https://asc.fasb.org/1943274/2147477798/958-360-50-6 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d) -SubTopic 360 -Topic 958 -Publisher FASB -URI https://asc.fasb.org/1943274/2147477798/958-360-50-1 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 7 -SubTopic 360 -Topic 958 -Publisher FASB -URI https://asc.fasb.org/1943274/2147477798/958-360-50-7 + Details
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