| Revenue: | | | | | | | | | | | | | | | |
| Total revenue | | | | | | | | | | | | | | | |
| YoY growth | -39.1% | +19.1% | +35.7% | | | | | | | | | | | | |
| Operating costs and expenses: | | | | | | | | | | | | | | | |
| Selling, general and administrative, including stock-based compensation | | | | | | | | | | | | | | | |
| Acquisition costs | | | | | | | | | | | | | | | |
| Depreciation and amortization | | | | | | | | | | | | | | | |
| Total operating costs and expenses | | | | | | | | | | | | | | | |
| % of revenue | 91.0% | 86.3% | 79.6% | | | | | | | | | | | | |
| Operating income (loss) | | | | | | | | | | | | | | | |
| % of revenue | 9.0% | 13.7% | 20.4% | | | | | | | | | | | | |
| Other income (expense): | | | | | | | | | | | | | | | |
| Interest expense | | | | | | | | | | | | | | | |
| Realized and unrealized gains (losses) on financial instruments, net | | | | | | | | | | | | | | | |
| Other, net | | | | | | | | | | | | | | | |
| Total other income (expense) | | | | | | | | | | | | | | | |
| Earnings (loss) from continuing operations before income taxes | | | | | | | | | | | | | | | |
| Income tax (expense) benefit | | | | | | | | | | | | | | | |
| Net earnings (loss) from continuing operations | | | | | | | | | | | | | | | |
| Net earnings (loss) from discontinued operations | | | | | | | | | | | | | | | |
| Net earnings (loss) | | | | | | | | | | | | | | | |
| % of revenue | 7.5% | 1.2% | 15.2% | | | | | | | | | | | | |
| Net earnings (loss) attributable to redeemable noncontrolling interest | | — | — | | | | | | | | | | | | |
| Net earnings (loss) attributable to Liberty stockholders | | | | | | | | | | | | | | | |
| % of revenue | 8.0% | 1.2% | 15.2% | | | | | | | | | | | | |
| Other income (expense): | | | | | | | | | | | | | | | |
| Net earnings (loss) from continuing operations attributable to Liberty stockholders: | | | | | | | | | | | | | | | |
| Basic net earnings (loss) from continuing operations attributable to Liberty stockholders per common share | | | | | | | | | | | | | | | |
| Diluted net earnings (loss) attributable to Liberty stockholders per common share: | | | | | | | | | | | | | | | |
| Diluted net earnings (loss) from continuing operations attributable to Liberty stockholders per common share | | | | | | | | | | | | | | | |
| Other income (expense): | | | | | | | | | | | | | | | |
| Net earnings (loss) from discontinued operations attributable to Liberty stockholders: | | | | | | | | | | | | | | | |
| Basic net earnings (loss) from discontinued operations attributable to Liberty stockholders per common share | | | | | | | | | | | | | | | |
| Diluted net earnings (loss) attributable to Liberty stockholders per common share: | | | | | | | | | | | | | | | |
| Diluted net earnings (loss) from discontinued operations attributable to Liberty stockholders per common share | | | | | | | | | | | | | | | |
| Operating costs and expenses: | | | | | | | | | | | | | | | |
| Cost of services | | | | | | | | | | | | | | | |
| Share of earnings (losses) of affiliates, net | — | | | | | | | | | | | | | | |
| Less net earnings (loss) attributable to the noncontrolling interests | — | | | | | | | | | | | | | | |
| Other operating expense | — | — | — | | | | | | | | | | | | |
| Impairment and acquisition costs | — | — | — | | | | | | | | | | | | |
| Unrealized gains (losses) on intergroup interests | — | — | — | | | | | | | | | | | | |
| Subscriber acquisition costs | — | — | — | | | | | | | | | | | | |
| Impairment, restructuring and acquisition costs | — | — | — | | | | | | | | | | | | |
| Series A, B and C common stock, basic earnings loss per share | — | — | — | | | | | | | | | | | | |
| Series A, B and C common stock, diluted earnings loss per share | — | — | — | | | | | | | | | | | | |
| Other operating expense | — | — | — | | | | | | | | | | | | |
| Legal settlement, net | — | — | — | | | | | | | | | | | | |
| Less net earnings (losses) attributable to the noncontrolling interests | — | — | — | | | | | | | | | | | | |
| Subscriber revenue | — | — | — | | | | | | | | | | | | |
| Other revenue | — | — | — | | | | | | | | | | | | |
| Revenue share and royalties | — | — | — | | | | | | | | | | | | |
| Programming and content | — | — | — | | | | | | | | | | | | |
| Customer service and billing | — | — | — | | | | | | | | | | | | |
| Other | — | — | — | | | | | | | | | | | | |
| Revenue share and royalties | — | — | — | | | | | | | | | | | | |
| Programming and content | — | — | — | | | | | | | | | | | | |
| Customer service and billing | — | — | — | | | | | | | | | | | | |
| Other | — | — | — | | | | | | | | | | | | |
| Subscriber acquisition costs | — | — | — | | | | | | | | | | | | |
| Other operating expense | — | — | — | | | | | | | | | | | | |
| Selling, general and administrative | — | — | — | | | | | | | | | | | | |
| Earnings (loss) before income taxes | — | — | — | | | | | | | | | | | | |
| Revenue | — | — | — | | | | | | | | | | | | |
| Share of earnings (loss) of affiliates | — | — | — | | | | | | | | | | | | |
| Unrealized holding gains (losses) arising during the period | — | — | — | | | | | | | | | | | | |
| Recognition of previously unrealized (gains) losses on available-for-sale securities, net | — | — | — | | | | | | | | | | | | |
| Share of other comprehensive earnings (loss) of equity affiliates | — | — | — | | | | | | | | | | | | |
| Other comprehensive earnings (loss) | — | — | — | | | | | | | | | | | | |
| Comprehensive earnings (loss) | — | — | — | | | | | | | | | | | | |
| Less comprehensive earnings (loss) attributable to the noncontrolling interests | — | — | — | | | | | | | | | | | | |
| Comprehensive earnings (loss) attributable to Liberty stockholders | — | — | — | | | | | | | | | | | | |
| As reported by SIRIUS XM | — | — | — | | | | | | | | | | | | |
| Subscriber revenue | — | — | — | | | | | | | | | | | | |
| Other revenue | — | — | — | | | | | | | | | | | | |
| Cost of subscriber services | — | — | — | | | | | | | | | | | | |
| Subscriber acquisition costs | — | — | — | | | | | | | | | | | | |
| Other operating expenses | — | — | — | | | | | | | | | | | | |
| Selling, general and administrative expenses | — | — | — | | | | | | | | | | | | |
| Adjusted OIBDA | — | — | — | | | | | | | | | | | | |
| Stock-based compensation | — | — | — | | | | | | | | | | | | |
| Operating income | — | — | — | | | | | | | | | | | | |
| Earnings (loss) attributable to the noncontrolling interests | — | — | — | | | | | | | | | | | | |
| Series A and B common stock | — | — | — | | | | | | | | | | | | |