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Basis of Presentation and Significant Accounting Policies (Tables) | 9 Months Ended
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Sep. 30, 2025
Accounting Policies [Abstract] |
Schedule of Restricted Cash | The following table provides a reconciliation of “cash and cash equivalents” and “restricted cash” reported on the unaudited condensed consolidated balance sheets that sum to the total of the same such amounts shown on the unaudited condensed consolidated statements of cash flows (in thousands):
|  | September 30, |  | December 31,
|  | 2025 |  | 2024
Cash and cash equivalents |  | $ | 98,167 |  |  | $ | 60,845 |
Restricted cash |  | 29,461 |  |  | 19,359 |
Total cash, cash equivalents and restricted cash shown in the unaudited condensed consolidated statements of cash flows |  | $ | 127,628 |  |  | $ | 80,204 |
Schedule of Cash and Cash Equivalents | The following table provides a reconciliation of “cash and cash equivalents” and “restricted cash” reported on the unaudited condensed consolidated balance sheets that sum to the total of the same such amounts shown on the unaudited condensed consolidated statements of cash flows (in thousands):
|  | September 30, |  | December 31,
|  | 2025 |  | 2024
Cash and cash equivalents |  | $ | 98,167 |  |  | $ | 60,845 |
Restricted cash |  | 29,461 |  |  | 19,359 |
Total cash, cash equivalents and restricted cash shown in the unaudited condensed consolidated statements of cash flows |  | $ | 127,628 |  |  | $ | 80,204 |
Schedule of Allowance for Expected Credit Losses | Following is a rollforward of the changes in our allowance for expected credit losses for the nine months ended September 30, 2025 (in thousands):
Balance, December 31, 2024 |  | $ | 171,264 |
Change in provision for expected credit losses before recoveries |  | 121 |
Recoveries of receivables previously charged to credit loss expense |  | (84) |
Write-offs charged against the provision |  | (368) |
Balance, September 30, 2025 |  | $ | 170,933 |
Schedule of Concentration of Credit Risk and Significant Customers | Following is a summary of our significant customers based on percentages of total accounts receivable, net balances at September 30, 2025 and December 31, 2024 and percentages of total revenue derived for the three and nine months ended September 30, 2025 and 2024:
| REVENUE |  | ACCOUNTS RECEIVABLE, NET
| Three Months Ended September 30, |  | Nine Months Ended September 30, |  | At September 30, | At December 31,
| 2025 | 2024 |  | 2025 | 2024 |  | 2025 | 2024
Customer A(a) | 22 | % | 20 | % |  | 21 | % | 24 | % |  | 4 | % | 3 | %
Customer B(b) | 8 | % | 14 | % |  | 15 | % | 12 | % |  | 1 | % | 3 | %
Customer C(c) | — | % | — | % |  | — | % | — | % |  | 48 | % | 46 | %
(a)Revenue and the related accounts receivable balances earned from Customer A were derived from the Company’s infrastructure services segment. (b)Revenue and the related accounts receivable balances earned from Customer B were derived from the Company’s natural sand proppant services segment. (c)The accounts receivable balance with Customer C was derived from the Company’s other services.

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- Definition Tabular disclosure of the various types of trade accounts and notes receivable and for each the gross carrying value, allowance, and net carrying value as of the balance sheet date. Presentation is categorized by current, noncurrent and unclassified receivables. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(4)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(3)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 + Details
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