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Reportable Segments - Summarized Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Reportable Segments
Investments in unconsolidated affiliates	$ 256,496	$ 231,048
Total assets	12,912,057	13,010,050
Operating segments | Exploration and Production
Reportable Segments
Investments in unconsolidated affiliates	256,496	231,048
Total assets	12,898,583	12,999,930
Operating segments | Marketing
Reportable Segments
Total assets	13,474	10,120
Operating segments | Equity Method Investment in Antero Midstream
Reportable Segments
Investments in unconsolidated affiliates	592,238	603,956
Total assets	5,717,088	5,761,748
Elimination of Unconsolidated Affiliate
Reportable Segments
Investments in unconsolidated affiliates	(592,238)	(603,956)
Total assets	$ (5,717,088)	$ (5,761,748)

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