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Revenue - Accounts Receivable and Contract Liabilities (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Disaggregation of Revenue [Line Items] |  |
Accounts receivable, net of allowance | $ 48,743 | $ 26,329
Total accounts receivable (short-term and long-term), net of allowance for credit losses | 48,743 | 42,429
Short-term contract liabilities | 53,677 | 74,639
Long-term contract liabilities | 3,213 | 62,877
Total contract liabilities | 56,890 | 137,516
Subscriber driven |  |
Disaggregation of Revenue [Line Items] |  |
Accounts receivable, net of allowance | 14,474 | 14,850
Short-term contract liabilities | 22,816 | 21,987
Long-term contract liabilities | 1,632 | 1,704
Wholesale capacity services |  |
Disaggregation of Revenue [Line Items] |  |
Accounts receivable, net of allowance | 33,521 | 7,234
Long-term wholesale capacity accounts receivable | 0 | 16,100
Short-term contract liabilities | 30,861 | 52,652
Long-term contract liabilities | 1,581 | 61,173
Total contract liabilities | 32,442 | 113,825
Agency agreement |  |
Disaggregation of Revenue [Line Items] |  |
Accounts receivable, net of allowance | $ 748 | $ 4,245

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